Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-pull

* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-pull: (64 commits)
  [XFS] Remove vn_revalidate calls in xfs.
  [XFS] Now that xfs_setattr is only used for attributes set from ->setattr
  [XFS] xfs_setattr currently doesn't just handle the attributes set through
  [XFS] fix use after free with external logs or real-time devices
  [XFS] A bug was found in xfs_bmap_add_extent_unwritten_real(). In a
  [XFS] fix compilation without CONFIG_PROC_FS
  [XFS] s/XFS_PURGE_INODE/IRELE/g s/VN_HOLD(XFS_ITOV())/IHOLD()/
  [XFS] fix mount option parsing in remount
  [XFS] Disable queue flag test in barrier check.
  [XFS] streamline init/exit path
  [XFS] Fix up problem when CONFIG_XFS_POSIX_ACL is not set and yet we still
  [XFS] Don't assert if trying to mount with blocksize > pagesize
  [XFS] Don't update mtime on rename source
  [XFS] Allow xfs_bmbt_split() to fallback to the lowspace allocator
  [XFS] Restore the lowspace extent allocator algorithm
  [XFS] use minleft when allocating in xfs_bmbt_split()
  [XFS] attrmulti cleanup
  [XFS] Check for invalid flags in xfs_attrlist_by_handle.
  [XFS] Fix CI lookup in leaf-form directories
  [XFS] Use the generic xattr methods.
  ...

fs/dcache.c

@@ -1220,6 +1220,107 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry)
 	return new;
 }
 
+/**
+ * d_add_ci - lookup or allocate new dentry with case-exact name
+ * @inode:  the inode case-insensitive lookup has found
+ * @dentry: the negative dentry that was passed to the parent's lookup func
+ * @name:   the case-exact name to be associated with the returned dentry
+ *
+ * This is to avoid filling the dcache with case-insensitive names to the
+ * same inode, only the actual correct case is stored in the dcache for
+ * case-insensitive filesystems.
+ *
+ * For a case-insensitive lookup match and if the the case-exact dentry
+ * already exists in in the dcache, use it and return it.
+ *
+ * If no entry exists with the exact case name, allocate new dentry with
+ * the exact case, and return the spliced entry.
+ */
+struct dentry *d_add_ci(struct inode *inode, struct dentry *dentry,
+			struct qstr *name)
+{
+	int error;
+	struct dentry *found;
+	struct dentry *new;
+
+	/* Does a dentry matching the name exist already? */
+	found = d_hash_and_lookup(dentry->d_parent, name);
+	/* If not, create it now and return */
+	if (!found) {
+		new = d_alloc(dentry->d_parent, name);
+		if (!new) {
+			error = -ENOMEM;
+			goto err_out;
+		}
+		found = d_splice_alias(inode, new);
+		if (found) {
+			dput(new);
+			return found;
+		}
+		return new;
+	}
+	/* Matching dentry exists, check if it is negative. */
+	if (found->d_inode) {
+		if (unlikely(found->d_inode != inode)) {
+			/* This can't happen because bad inodes are unhashed. */
+			BUG_ON(!is_bad_inode(inode));
+			BUG_ON(!is_bad_inode(found->d_inode));
+		}
+		/*
+		 * Already have the inode and the dentry attached, decrement
+		 * the reference count to balance the iget() done
+		 * earlier on.  We found the dentry using d_lookup() so it
+		 * cannot be disconnected and thus we do not need to worry
+		 * about any NFS/disconnectedness issues here.
+		 */
+		iput(inode);
+		return found;
+	}
+	/*
+	 * Negative dentry: instantiate it unless the inode is a directory and
+	 * has a 'disconnected' dentry (i.e. IS_ROOT and DCACHE_DISCONNECTED),
+	 * in which case d_move() that in place of the found dentry.
+	 */
+	if (!S_ISDIR(inode->i_mode)) {
+		/* Not a directory; everything is easy. */
+		d_instantiate(found, inode);
+		return found;
+	}
+	spin_lock(&dcache_lock);
+	if (list_empty(&inode->i_dentry)) {
+		/*
+		 * Directory without a 'disconnected' dentry; we need to do
+		 * d_instantiate() by hand because it takes dcache_lock which
+		 * we already hold.
+		 */
+		list_add(&found->d_alias, &inode->i_dentry);
+		found->d_inode = inode;
+		spin_unlock(&dcache_lock);
+		security_d_instantiate(found, inode);
+		return found;
+	}
+	/*
+	 * Directory with a 'disconnected' dentry; get a reference to the
+	 * 'disconnected' dentry.
+	 */
+	new = list_entry(inode->i_dentry.next, struct dentry, d_alias);
+	dget_locked(new);
+	spin_unlock(&dcache_lock);
+	/* Do security vodoo. */
+	security_d_instantiate(found, inode);
+	/* Move new in place of found. */
+	d_move(new, found);
+	/* Balance the iget() we did above. */
+	iput(inode);
+	/* Throw away found. */
+	dput(found);
+	/* Use new as the actual dentry. */
+	return new;
+
+err_out:
+	iput(inode);
+	return ERR_PTR(error);
+}
 
 /**
  * d_lookup - search for a dentry
@@ -2254,6 +2355,7 @@ EXPORT_SYMBOL(d_path);
 EXPORT_SYMBOL(d_prune_aliases);
 EXPORT_SYMBOL(d_rehash);
 EXPORT_SYMBOL(d_splice_alias);
+EXPORT_SYMBOL(d_add_ci);
 EXPORT_SYMBOL(d_validate);
 EXPORT_SYMBOL(dget_locked);
 EXPORT_SYMBOL(dput);

fs/xfs/Makefile

@@ -106,7 +106,8 @@ xfs-y				+= $(addprefix $(XFS_LINUX)/, \
 				   xfs_iops.o \
 				   xfs_lrw.o \
 				   xfs_super.o \
-				   xfs_vnode.o)
+				   xfs_vnode.o \
+				   xfs_xattr.o)
 
 # Objects in support/
 xfs-y				+= $(addprefix support/, \

fs/xfs/linux-2.6/kmem.c

@@ -90,7 +90,7 @@ kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize,
 }
 
 void
-kmem_free(void *ptr, size_t size)
+kmem_free(const void *ptr)
 {
 	if (!is_vmalloc_addr(ptr)) {
 		kfree(ptr);
@@ -100,7 +100,7 @@ kmem_free(void *ptr, size_t size)
 }
 
 void *
-kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
+kmem_realloc(const void *ptr, size_t newsize, size_t oldsize,
 	     unsigned int __nocast flags)
 {
 	void	*new;
@@ -110,7 +110,7 @@ kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
 		if (new)
 			memcpy(new, ptr,
 				((oldsize < newsize) ? oldsize : newsize));
-		kmem_free(ptr, oldsize);
+		kmem_free(ptr);
 	}
 	return new;
 }

fs/xfs/linux-2.6/kmem.h

@@ -57,8 +57,8 @@ kmem_flags_convert(unsigned int __nocast flags)
 extern void *kmem_alloc(size_t, unsigned int __nocast);
 extern void *kmem_zalloc(size_t, unsigned int __nocast);
 extern void *kmem_zalloc_greedy(size_t *, size_t, size_t, unsigned int __nocast);
-extern void *kmem_realloc(void *, size_t, size_t, unsigned int __nocast);
-extern void  kmem_free(void *, size_t);
+extern void *kmem_realloc(const void *, size_t, size_t, unsigned int __nocast);
+extern void  kmem_free(const void *);
 
 /*
  * Zone interfaces

fs/xfs/linux-2.6/xfs_aops.c

@@ -409,7 +409,6 @@ xfs_start_buffer_writeback(
 STATIC void
 xfs_start_page_writeback(
 	struct page		*page,
-	struct writeback_control *wbc,
 	int			clear_dirty,
 	int			buffers)
 {
@@ -858,7 +857,7 @@ xfs_convert_page(
 				done = 1;
 			}
 		}
-		xfs_start_page_writeback(page, wbc, !page_dirty, count);
+		xfs_start_page_writeback(page, !page_dirty, count);
 	}
 
 	return done;
@@ -1130,7 +1129,7 @@ xfs_page_state_convert(
 		SetPageUptodate(page);
 
 	if (startio)
-		xfs_start_page_writeback(page, wbc, 1, count);
+		xfs_start_page_writeback(page, 1, count);
 
 	if (ioend && iomap_valid) {
 		offset = (iomap.iomap_offset + iomap.iomap_bsize - 1) >>

fs/xfs/linux-2.6/xfs_buf.c

@@ -310,8 +310,7 @@ _xfs_buf_free_pages(
 	xfs_buf_t	*bp)
 {
 	if (bp->b_pages != bp->b_page_array) {
-		kmem_free(bp->b_pages,
-			  bp->b_page_count * sizeof(struct page *));
+		kmem_free(bp->b_pages);
 	}
 }
 
@@ -1398,7 +1397,7 @@ STATIC void
 xfs_free_bufhash(
 	xfs_buftarg_t		*btp)
 {
-	kmem_free(btp->bt_hash, (1<<btp->bt_hashshift) * sizeof(xfs_bufhash_t));
+	kmem_free(btp->bt_hash);
 	btp->bt_hash = NULL;
 }
 
@@ -1428,13 +1427,10 @@ xfs_unregister_buftarg(
 
 void
 xfs_free_buftarg(
-	xfs_buftarg_t		*btp,
-	int			external)
+	xfs_buftarg_t		*btp)
 {
 	xfs_flush_buftarg(btp, 1);
 	xfs_blkdev_issue_flush(btp);
-	if (external)
-		xfs_blkdev_put(btp->bt_bdev);
 	xfs_free_bufhash(btp);
 	iput(btp->bt_mapping->host);
 
@@ -1444,7 +1440,7 @@ xfs_free_buftarg(
 	xfs_unregister_buftarg(btp);
 	kthread_stop(btp->bt_task);
 
-	kmem_free(btp, sizeof(*btp));
+	kmem_free(btp);
 }
 
 STATIC int
@@ -1575,7 +1571,7 @@ xfs_alloc_buftarg(
 	return btp;
 
 error:
-	kmem_free(btp, sizeof(*btp));
+	kmem_free(btp);
 	return NULL;
 }
 

fs/xfs/linux-2.6/xfs_buf.h

@@ -429,7 +429,7 @@ static inline void xfs_bdwrite(void *mp, xfs_buf_t *bp)
  *	Handling of buftargs.
  */
 extern xfs_buftarg_t *xfs_alloc_buftarg(struct block_device *, int);
-extern void xfs_free_buftarg(xfs_buftarg_t *, int);
+extern void xfs_free_buftarg(xfs_buftarg_t *);
 extern void xfs_wait_buftarg(xfs_buftarg_t *);
 extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);
 extern int xfs_flush_buftarg(xfs_buftarg_t *, int);

fs/xfs/linux-2.6/xfs_export.c

@@ -215,7 +215,7 @@ xfs_fs_get_parent(
 	struct xfs_inode	*cip;
 	struct dentry		*parent;
 
-	error = xfs_lookup(XFS_I(child->d_inode), &xfs_name_dotdot, &cip);
+	error = xfs_lookup(XFS_I(child->d_inode), &xfs_name_dotdot, &cip, NULL);
 	if (unlikely(error))
 		return ERR_PTR(-error);
 

fs/xfs/linux-2.6/xfs_ioctl.c

@@ -48,6 +48,8 @@
 #include "xfs_dfrag.h"
 #include "xfs_fsops.h"
 #include "xfs_vnodeops.h"
+#include "xfs_quota.h"
+#include "xfs_inode_item.h"
 
 #include <linux/capability.h>
 #include <linux/dcache.h>
@@ -468,6 +470,12 @@ xfs_attrlist_by_handle(
 	if (al_hreq.buflen > XATTR_LIST_MAX)
 		return -XFS_ERROR(EINVAL);
 
+	/*
+	 * Reject flags, only allow namespaces.
+	 */
+	if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
+		return -XFS_ERROR(EINVAL);
+
 	error = xfs_vget_fsop_handlereq(mp, parinode, &al_hreq.hreq, &inode);
 	if (error)
 		goto out;
@@ -587,7 +595,7 @@ xfs_attrmulti_by_handle(
 		goto out;
 
 	error = E2BIG;
-	size = am_hreq.opcount * sizeof(attr_multiop_t);
+	size = am_hreq.opcount * sizeof(xfs_attr_multiop_t);
 	if (!size || size > 16 * PAGE_SIZE)
 		goto out_vn_rele;
 
@@ -680,9 +688,9 @@ xfs_ioc_space(
 		return -XFS_ERROR(EFAULT);
 
 	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
-		attr_flags |= ATTR_NONBLOCK;
+		attr_flags |= XFS_ATTR_NONBLOCK;
 	if (ioflags & IO_INVIS)
-		attr_flags |= ATTR_DMI;
+		attr_flags |= XFS_ATTR_DMI;
 
 	error = xfs_change_file_space(ip, cmd, &bf, filp->f_pos,
 					      NULL, attr_flags);
@@ -873,6 +881,322 @@ xfs_ioc_fsgetxattr(
 	return 0;
 }
 
+STATIC void
+xfs_set_diflags(
+	struct xfs_inode	*ip,
+	unsigned int		xflags)
+{
+	unsigned int		di_flags;
+
+	/* can't set PREALLOC this way, just preserve it */
+	di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+	if (xflags & XFS_XFLAG_IMMUTABLE)
+		di_flags |= XFS_DIFLAG_IMMUTABLE;
+	if (xflags & XFS_XFLAG_APPEND)
+		di_flags |= XFS_DIFLAG_APPEND;
+	if (xflags & XFS_XFLAG_SYNC)
+		di_flags |= XFS_DIFLAG_SYNC;
+	if (xflags & XFS_XFLAG_NOATIME)
+		di_flags |= XFS_DIFLAG_NOATIME;
+	if (xflags & XFS_XFLAG_NODUMP)
+		di_flags |= XFS_DIFLAG_NODUMP;
+	if (xflags & XFS_XFLAG_PROJINHERIT)
+		di_flags |= XFS_DIFLAG_PROJINHERIT;
+	if (xflags & XFS_XFLAG_NODEFRAG)
+		di_flags |= XFS_DIFLAG_NODEFRAG;
+	if (xflags & XFS_XFLAG_FILESTREAM)
+		di_flags |= XFS_DIFLAG_FILESTREAM;
+	if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+		if (xflags & XFS_XFLAG_RTINHERIT)
+			di_flags |= XFS_DIFLAG_RTINHERIT;
+		if (xflags & XFS_XFLAG_NOSYMLINKS)
+			di_flags |= XFS_DIFLAG_NOSYMLINKS;
+		if (xflags & XFS_XFLAG_EXTSZINHERIT)
+			di_flags |= XFS_DIFLAG_EXTSZINHERIT;
+	} else if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
+		if (xflags & XFS_XFLAG_REALTIME)
+			di_flags |= XFS_DIFLAG_REALTIME;
+		if (xflags & XFS_XFLAG_EXTSIZE)
+			di_flags |= XFS_DIFLAG_EXTSIZE;
+	}
+
+	ip->i_d.di_flags = di_flags;
+}
+
+STATIC void
+xfs_diflags_to_linux(
+	struct xfs_inode	*ip)
+{
+	struct inode		*inode = XFS_ITOV(ip);
+	unsigned int		xflags = xfs_ip2xflags(ip);
+
+	if (xflags & XFS_XFLAG_IMMUTABLE)
+		inode->i_flags |= S_IMMUTABLE;
+	else
+		inode->i_flags &= ~S_IMMUTABLE;
+	if (xflags & XFS_XFLAG_APPEND)
+		inode->i_flags |= S_APPEND;
+	else
+		inode->i_flags &= ~S_APPEND;
+	if (xflags & XFS_XFLAG_SYNC)
+		inode->i_flags |= S_SYNC;
+	else
+		inode->i_flags &= ~S_SYNC;
+	if (xflags & XFS_XFLAG_NOATIME)
+		inode->i_flags |= S_NOATIME;
+	else
+		inode->i_flags &= ~S_NOATIME;
+}
+
+#define FSX_PROJID	1
+#define FSX_EXTSIZE	2
+#define FSX_XFLAGS	4
+#define FSX_NONBLOCK	8
+
+STATIC int
+xfs_ioctl_setattr(
+	xfs_inode_t		*ip,
+	struct fsxattr		*fa,
+	int			mask)
+{
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	unsigned int		lock_flags = 0;
+	struct xfs_dquot	*udqp = NULL, *gdqp = NULL;
+	struct xfs_dquot	*olddquot = NULL;
+	int			code;
+
+	xfs_itrace_entry(ip);
+
+	if (mp->m_flags & XFS_MOUNT_RDONLY)
+		return XFS_ERROR(EROFS);
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return XFS_ERROR(EIO);
+
+	/*
+	 * If disk quotas is on, we make sure that the dquots do exist on disk,
+	 * before we start any other transactions. Trying to do this later
+	 * is messy. We don't care to take a readlock to look at the ids
+	 * in inode here, because we can't hold it across the trans_reserve.
+	 * If the IDs do change before we take the ilock, we're covered
+	 * because the i_*dquot fields will get updated anyway.
+	 */
+	if (XFS_IS_QUOTA_ON(mp) && (mask & FSX_PROJID)) {
+		code = XFS_QM_DQVOPALLOC(mp, ip, ip->i_d.di_uid,
+					 ip->i_d.di_gid, fa->fsx_projid,
+					 XFS_QMOPT_PQUOTA, &udqp, &gdqp);
+		if (code)
+			return code;
+	}
+
+	/*
+	 * For the other attributes, we acquire the inode lock and
+	 * first do an error checking pass.
+	 */
+	tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
+	code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0);
+	if (code)
+		goto error_return;
+
+	lock_flags = XFS_ILOCK_EXCL;
+	xfs_ilock(ip, lock_flags);
+
+	/*
+	 * CAP_FOWNER overrides the following restrictions:
+	 *
+	 * The user ID of the calling process must be equal
+	 * to the file owner ID, except in cases where the
+	 * CAP_FSETID capability is applicable.
+	 */
+	if (current->fsuid != ip->i_d.di_uid && !capable(CAP_FOWNER)) {
+		code = XFS_ERROR(EPERM);
+		goto error_return;
+	}
+
+	/*
+	 * Do a quota reservation only if projid is actually going to change.
+	 */
+	if (mask & FSX_PROJID) {
+		if (XFS_IS_PQUOTA_ON(mp) &&
+		    ip->i_d.di_projid != fa->fsx_projid) {
+			ASSERT(tp);
+			code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp,
+						capable(CAP_FOWNER) ?
+						XFS_QMOPT_FORCE_RES : 0);
+			if (code)	/* out of quota */
+				goto error_return;
+		}
+	}
+
+	if (mask & FSX_EXTSIZE) {
+		/*
+		 * Can't change extent size if any extents are allocated.
+		 */
+		if (ip->i_d.di_nextents &&
+		    ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) !=
+		     fa->fsx_extsize)) {
+			code = XFS_ERROR(EINVAL);	/* EFBIG? */
+			goto error_return;
+		}
+
+		/*
+		 * Extent size must be a multiple of the appropriate block
+		 * size, if set at all.
+		 */
+		if (fa->fsx_extsize != 0) {
+			xfs_extlen_t	size;
+
+			if (XFS_IS_REALTIME_INODE(ip) ||
+			    ((mask & FSX_XFLAGS) &&
+			    (fa->fsx_xflags & XFS_XFLAG_REALTIME))) {
+				size = mp->m_sb.sb_rextsize <<
+				       mp->m_sb.sb_blocklog;
+			} else {
+				size = mp->m_sb.sb_blocksize;
+			}
+
+			if (fa->fsx_extsize % size) {
+				code = XFS_ERROR(EINVAL);
+				goto error_return;
+			}
+		}
+	}
+
+
+	if (mask & FSX_XFLAGS) {
+		/*
+		 * Can't change realtime flag if any extents are allocated.
+		 */
+		if ((ip->i_d.di_nextents || ip->i_delayed_blks) &&
+		    (XFS_IS_REALTIME_INODE(ip)) !=
+		    (fa->fsx_xflags & XFS_XFLAG_REALTIME)) {
+			code = XFS_ERROR(EINVAL);	/* EFBIG? */
+			goto error_return;
+		}
+
+		/*
+		 * If realtime flag is set then must have realtime data.
+		 */
+		if ((fa->fsx_xflags & XFS_XFLAG_REALTIME)) {
+			if ((mp->m_sb.sb_rblocks == 0) ||
+			    (mp->m_sb.sb_rextsize == 0) ||
+			    (ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) {
+				code = XFS_ERROR(EINVAL);
+				goto error_return;
+			}
+		}
+
+		/*
+		 * Can't modify an immutable/append-only file unless
+		 * we have appropriate permission.
+		 */
+		if ((ip->i_d.di_flags &
+				(XFS_DIFLAG_IMMUTABLE|XFS_DIFLAG_APPEND) ||
+		     (fa->fsx_xflags &
+				(XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) &&
+		    !capable(CAP_LINUX_IMMUTABLE)) {
+			code = XFS_ERROR(EPERM);
+			goto error_return;
+		}
+	}
+
+	xfs_trans_ijoin(tp, ip, lock_flags);
+	xfs_trans_ihold(tp, ip);
+
+	/*
+	 * Change file ownership.  Must be the owner or privileged.
+	 * If the system was configured with the "restricted_chown"
+	 * option, the owner is not permitted to give away the file,
+	 * and can change the group id only to a group of which he
+	 * or she is a member.
+	 */
+	if (mask & FSX_PROJID) {
+		/*
+		 * CAP_FSETID overrides the following restrictions:
+		 *
+		 * The set-user-ID and set-group-ID bits of a file will be
+		 * cleared upon successful return from chown()
+		 */
+		if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) &&
+		    !capable(CAP_FSETID))
+			ip->i_d.di_mode &= ~(S_ISUID|S_ISGID);
+
+		/*
+		 * Change the ownerships and register quota modifications
+		 * in the transaction.
+		 */
+		if (ip->i_d.di_projid != fa->fsx_projid) {
+			if (XFS_IS_PQUOTA_ON(mp)) {
+				olddquot = XFS_QM_DQVOPCHOWN(mp, tp, ip,
+							&ip->i_gdquot, gdqp);
+			}
+			ip->i_d.di_projid = fa->fsx_projid;
+
+			/*
+			 * We may have to rev the inode as well as
+			 * the superblock version number since projids didn't
+			 * exist before DINODE_VERSION_2 and SB_VERSION_NLINK.
+			 */
+			if (ip->i_d.di_version == XFS_DINODE_VERSION_1)
+				xfs_bump_ino_vers2(tp, ip);
+		}
+
+	}
+
+	if (mask & FSX_EXTSIZE)
+		ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog;
+	if (mask & FSX_XFLAGS) {
+		xfs_set_diflags(ip, fa->fsx_xflags);
+		xfs_diflags_to_linux(ip);
+	}
+
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
+
+	XFS_STATS_INC(xs_ig_attrchg);
+
+	/*
+	 * If this is a synchronous mount, make sure that the
+	 * transaction goes to disk before returning to the user.
+	 * This is slightly sub-optimal in that truncates require
+	 * two sync transactions instead of one for wsync filesystems.
+	 * One for the truncate and one for the timestamps since we
+	 * don't want to change the timestamps unless we're sure the
+	 * truncate worked.  Truncates are less than 1% of the laddis
+	 * mix so this probably isn't worth the trouble to optimize.
+	 */
+	if (mp->m_flags & XFS_MOUNT_WSYNC)
+		xfs_trans_set_sync(tp);
+	code = xfs_trans_commit(tp, 0);
+	xfs_iunlock(ip, lock_flags);
+
+	/*
+	 * Release any dquot(s) the inode had kept before chown.
+	 */
+	XFS_QM_DQRELE(mp, olddquot);
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+
+	if (code)
+		return code;
+
+	if (DM_EVENT_ENABLED(ip, DM_EVENT_ATTRIBUTE)) {
+		XFS_SEND_NAMESP(mp, DM_EVENT_ATTRIBUTE, ip, DM_RIGHT_NULL,
+				NULL, DM_RIGHT_NULL, NULL, NULL, 0, 0,
+				(mask & FSX_NONBLOCK) ? DM_FLAGS_NDELAY : 0);
+	}
+
+	return 0;
+
+ error_return:
+	XFS_QM_DQRELE(mp, udqp);
+	XFS_QM_DQRELE(mp, gdqp);
+	xfs_trans_cancel(tp, 0);
+	if (lock_flags)
+		xfs_iunlock(ip, lock_flags);
+	return code;
+}
+
 STATIC int
 xfs_ioc_fssetxattr(
 	xfs_inode_t		*ip,
@@ -880,31 +1204,16 @@ xfs_ioc_fssetxattr(
 	void			__user *arg)
 {
 	struct fsxattr		fa;
-	struct bhv_vattr	*vattr;
-	int			error;
-	int			attr_flags;
+	unsigned int		mask;
 
 	if (copy_from_user(&fa, arg, sizeof(fa)))
 		return -EFAULT;
 
-	vattr = kmalloc(sizeof(*vattr), GFP_KERNEL);
-	if (unlikely(!vattr))
-		return -ENOMEM;
-
-	attr_flags = 0;
+	mask = FSX_XFLAGS | FSX_EXTSIZE | FSX_PROJID;
 	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
-		attr_flags |= ATTR_NONBLOCK;
-
-	vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
-	vattr->va_xflags  = fa.fsx_xflags;
-	vattr->va_extsize = fa.fsx_extsize;
-	vattr->va_projid  = fa.fsx_projid;
+		mask |= FSX_NONBLOCK;
 
-	error = -xfs_setattr(ip, vattr, attr_flags, NULL);
-	if (!error)
-		vn_revalidate(XFS_ITOV(ip));	/* update flags */
-	kfree(vattr);
-	return 0;
+	return -xfs_ioctl_setattr(ip, &fa, mask);
 }
 
 STATIC int
@@ -926,10 +1235,9 @@ xfs_ioc_setxflags(
 	struct file		*filp,
 	void			__user *arg)
 {
-	struct bhv_vattr	*vattr;
+	struct fsxattr		fa;
 	unsigned int		flags;
-	int			attr_flags;
-	int			error;
+	unsigned int		mask;
 
 	if (copy_from_user(&flags, arg, sizeof(flags)))
 		return -EFAULT;
@@ -939,22 +1247,12 @@ xfs_ioc_setxflags(
 		      FS_SYNC_FL))
 		return -EOPNOTSUPP;
 
-	vattr = kmalloc(sizeof(*vattr), GFP_KERNEL);
-	if (unlikely(!vattr))
-		return -ENOMEM;
-
-	attr_flags = 0;
+	mask = FSX_XFLAGS;
 	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
-		attr_flags |= ATTR_NONBLOCK;
-
-	vattr->va_mask = XFS_AT_XFLAGS;
-	vattr->va_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip));
+		mask |= FSX_NONBLOCK;
+	fa.fsx_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip));
 
-	error = -xfs_setattr(ip, vattr, attr_flags, NULL);
-	if (likely(!error))
-		vn_revalidate(XFS_ITOV(ip));	/* update flags */
-	kfree(vattr);
-	return error;
+	return -xfs_ioctl_setattr(ip, &fa, mask);
 }
 
 STATIC int

fs/xfs/linux-2.6/xfs_iops.c

@@ -181,23 +181,6 @@ xfs_ichgtime_fast(
 		mark_inode_dirty_sync(inode);
 }
 
-
-/*
- * Pull the link count and size up from the xfs inode to the linux inode
- */
-STATIC void
-xfs_validate_fields(
-	struct inode		*inode)
-{
-	struct xfs_inode	*ip = XFS_I(inode);
-	loff_t size;
-
-	/* we're under i_sem so i_size can't change under us */
-	size = XFS_ISIZE(ip);
-	if (i_size_read(inode) != size)
-		i_size_write(inode, size);
-}
-
 /*
  * Hook in SELinux.  This is not quite correct yet, what we really need
  * here (as we do for default ACLs) is a mechanism by which creation of
@@ -245,8 +228,7 @@ STATIC void
 xfs_cleanup_inode(
 	struct inode	*dir,
 	struct inode	*inode,
-	struct dentry	*dentry,
-	int		mode)
+	struct dentry	*dentry)
 {
 	struct xfs_name	teardown;
 
@@ -257,10 +239,7 @@ xfs_cleanup_inode(
 	 */
 	xfs_dentry_to_name(&teardown, dentry);
 
-	if (S_ISDIR(mode))
-		xfs_rmdir(XFS_I(dir), &teardown, XFS_I(inode));
-	else
-		xfs_remove(XFS_I(dir), &teardown, XFS_I(inode));
+	xfs_remove(XFS_I(dir), &teardown, XFS_I(inode));
 	iput(inode);
 }
 
@@ -275,7 +254,7 @@ xfs_vn_mknod(
 	struct xfs_inode *ip = NULL;
 	xfs_acl_t	*default_acl = NULL;
 	struct xfs_name	name;
-	attrexists_t	test_default_acl = _ACL_DEFAULT_EXISTS;
+	int (*test_default_acl)(struct inode *) = _ACL_DEFAULT_EXISTS;
 	int		error;
 
 	/*
@@ -335,14 +314,11 @@ xfs_vn_mknod(
 	}
 
 
-	if (S_ISDIR(mode))
-		xfs_validate_fields(inode);
 	d_instantiate(dentry, inode);
-	xfs_validate_fields(dir);
 	return -error;
 
  out_cleanup_inode:
-	xfs_cleanup_inode(dir, inode, dentry, mode);
+	xfs_cleanup_inode(dir, inode, dentry);
  out_free_acl:
 	if (default_acl)
 		_ACL_FREE(default_acl);
@@ -382,7 +358,7 @@ xfs_vn_lookup(
 		return ERR_PTR(-ENAMETOOLONG);
 
 	xfs_dentry_to_name(&name, dentry);
-	error = xfs_lookup(XFS_I(dir), &name, &cip);
+	error = xfs_lookup(XFS_I(dir), &name, &cip, NULL);
 	if (unlikely(error)) {
 		if (unlikely(error != ENOENT))
 			return ERR_PTR(-error);
@@ -393,6 +369,46 @@ xfs_vn_lookup(
 	return d_splice_alias(cip->i_vnode, dentry);
 }
 
+STATIC struct dentry *
+xfs_vn_ci_lookup(
+	struct inode	*dir,
+	struct dentry	*dentry,
+	struct nameidata *nd)
+{
+	struct xfs_inode *ip;
+	struct xfs_name	xname;
+	struct xfs_name ci_name;
+	struct qstr	dname;
+	int		error;
+
+	if (dentry->d_name.len >= MAXNAMELEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	xfs_dentry_to_name(&xname, dentry);
+	error = xfs_lookup(XFS_I(dir), &xname, &ip, &ci_name);
+	if (unlikely(error)) {
+		if (unlikely(error != ENOENT))
+			return ERR_PTR(-error);
+		/*
+		 * call d_add(dentry, NULL) here when d_drop_negative_children
+		 * is called in xfs_vn_mknod (ie. allow negative dentries
+		 * with CI filesystems).
+		 */
+		return NULL;
+	}
+
+	/* if exact match, just splice and exit */
+	if (!ci_name.name)
+		return d_splice_alias(ip->i_vnode, dentry);
+
+	/* else case-insensitive match... */
+	dname.name = ci_name.name;
+	dname.len = ci_name.len;
+	dentry = d_add_ci(ip->i_vnode, dentry, &dname);
+	kmem_free(ci_name.name);
+	return dentry;
+}
+
 STATIC int
 xfs_vn_link(
 	struct dentry	*old_dentry,
@@ -414,7 +430,6 @@ xfs_vn_link(
 	}
 
 	xfs_iflags_set(XFS_I(dir), XFS_IMODIFIED);
-	xfs_validate_fields(inode);
 	d_instantiate(dentry, inode);
 	return 0;
 }
@@ -424,19 +439,23 @@ xfs_vn_unlink(
 	struct inode	*dir,
 	struct dentry	*dentry)
 {
-	struct inode	*inode;
 	struct xfs_name	name;
 	int		error;
 
-	inode = dentry->d_inode;
 	xfs_dentry_to_name(&name, dentry);
 
-	error = xfs_remove(XFS_I(dir), &name, XFS_I(inode));
-	if (likely(!error)) {
-		xfs_validate_fields(dir);	/* size needs update */
-		xfs_validate_fields(inode);
-	}
-	return -error;
+	error = -xfs_remove(XFS_I(dir), &name, XFS_I(dentry->d_inode));
+	if (error)
+		return error;
+
+	/*
+	 * With unlink, the VFS makes the dentry "negative": no inode,
+	 * but still hashed. This is incompatible with case-insensitive
+	 * mode, so invalidate (unhash) the dentry in CI-mode.
+	 */
+	if (xfs_sb_version_hasasciici(&XFS_M(dir->i_sb)->m_sb))
+		d_invalidate(dentry);
+	return 0;
 }
 
 STATIC int
@@ -466,35 +485,14 @@ xfs_vn_symlink(
 		goto out_cleanup_inode;
 
 	d_instantiate(dentry, inode);
-	xfs_validate_fields(dir);
-	xfs_validate_fields(inode);
 	return 0;
 
  out_cleanup_inode:
-	xfs_cleanup_inode(dir, inode, dentry, 0);
+	xfs_cleanup_inode(dir, inode, dentry);
  out:
 	return -error;
 }
 
-STATIC int
-xfs_vn_rmdir(
-	struct inode	*dir,
-	struct dentry	*dentry)
-{
-	struct inode	*inode = dentry->d_inode;
-	struct xfs_name	name;
-	int		error;
-
-	xfs_dentry_to_name(&name, dentry);
-
-	error = xfs_rmdir(XFS_I(dir), &name, XFS_I(inode));
-	if (likely(!error)) {
-		xfs_validate_fields(inode);
-		xfs_validate_fields(dir);
-	}
-	return -error;
-}
-
 STATIC int
 xfs_vn_rename(
 	struct inode	*odir,
@@ -505,22 +503,13 @@ xfs_vn_rename(
 	struct inode	*new_inode = ndentry->d_inode;
 	struct xfs_name	oname;
 	struct xfs_name	nname;
-	int		error;
 
 	xfs_dentry_to_name(&oname, odentry);
 	xfs_dentry_to_name(&nname, ndentry);
 
-	error = xfs_rename(XFS_I(odir), &oname, XFS_I(odentry->d_inode),
+	return -xfs_rename(XFS_I(odir), &oname, XFS_I(odentry->d_inode),
 			   XFS_I(ndir), &nname, new_inode ?
 			   			XFS_I(new_inode) : NULL);
-	if (likely(!error)) {
-		if (new_inode)
-			xfs_validate_fields(new_inode);
-		xfs_validate_fields(odir);
-		if (ndir != odir)
-			xfs_validate_fields(ndir);
-	}
-	return -error;
 }
 
 /*
@@ -659,57 +648,9 @@ xfs_vn_getattr(
 STATIC int
 xfs_vn_setattr(
 	struct dentry	*dentry,
-	struct iattr	*attr)
+	struct iattr	*iattr)
 {
-	struct inode	*inode = dentry->d_inode;
-	unsigned int	ia_valid = attr->ia_valid;
-	bhv_vattr_t	vattr = { 0 };
-	int		flags = 0;
-	int		error;
-
-	if (ia_valid & ATTR_UID) {
-		vattr.va_mask |= XFS_AT_UID;
-		vattr.va_uid = attr->ia_uid;
-	}
-	if (ia_valid & ATTR_GID) {
-		vattr.va_mask |= XFS_AT_GID;
-		vattr.va_gid = attr->ia_gid;
-	}
-	if (ia_valid & ATTR_SIZE) {
-		vattr.va_mask |= XFS_AT_SIZE;
-		vattr.va_size = attr->ia_size;
-	}
-	if (ia_valid & ATTR_ATIME) {
-		vattr.va_mask |= XFS_AT_ATIME;
-		vattr.va_atime = attr->ia_atime;
-		inode->i_atime = attr->ia_atime;
-	}
-	if (ia_valid & ATTR_MTIME) {
-		vattr.va_mask |= XFS_AT_MTIME;
-		vattr.va_mtime = attr->ia_mtime;
-	}
-	if (ia_valid & ATTR_CTIME) {
-		vattr.va_mask |= XFS_AT_CTIME;
-		vattr.va_ctime = attr->ia_ctime;
-	}
-	if (ia_valid & ATTR_MODE) {
-		vattr.va_mask |= XFS_AT_MODE;
-		vattr.va_mode = attr->ia_mode;
-		if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
-			inode->i_mode &= ~S_ISGID;
-	}
-
-	if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))
-		flags |= ATTR_UTIME;
-#ifdef ATTR_NO_BLOCK
-	if ((ia_valid & ATTR_NO_BLOCK))
-		flags |= ATTR_NONBLOCK;
-#endif
-
-	error = xfs_setattr(XFS_I(inode), &vattr, flags, NULL);
-	if (likely(!error))
-		vn_revalidate(vn_from_inode(inode));
-	return -error;
+	return -xfs_setattr(XFS_I(dentry->d_inode), iattr, 0, NULL);
 }
 
 /*
@@ -727,109 +668,6 @@ xfs_vn_truncate(
 	WARN_ON(error);
 }
 
-STATIC int
-xfs_vn_setxattr(
-	struct dentry	*dentry,
-	const char	*name,
-	const void	*data,
-	size_t		size,
-	int		flags)
-{
-	bhv_vnode_t	*vp = vn_from_inode(dentry->d_inode);
-	char		*attr = (char *)name;
-	attrnames_t	*namesp;
-	int		xflags = 0;
-	int		error;
-
-	namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
-	if (!namesp)
-		return -EOPNOTSUPP;
-	attr += namesp->attr_namelen;
-	error = namesp->attr_capable(vp, NULL);
-	if (error)
-		return error;
-
-	/* Convert Linux syscall to XFS internal ATTR flags */
-	if (flags & XATTR_CREATE)
-		xflags |= ATTR_CREATE;
-	if (flags & XATTR_REPLACE)
-		xflags |= ATTR_REPLACE;
-	xflags |= namesp->attr_flag;
-	return namesp->attr_set(vp, attr, (void *)data, size, xflags);
-}
-
-STATIC ssize_t
-xfs_vn_getxattr(
-	struct dentry	*dentry,
-	const char	*name,
-	void		*data,
-	size_t		size)
-{
-	bhv_vnode_t	*vp = vn_from_inode(dentry->d_inode);
-	char		*attr = (char *)name;
-	attrnames_t	*namesp;
-	int		xflags = 0;
-	ssize_t		error;
-
-	namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
-	if (!namesp)
-		return -EOPNOTSUPP;
-	attr += namesp->attr_namelen;
-	error = namesp->attr_capable(vp, NULL);
-	if (error)
-		return error;
-
-	/* Convert Linux syscall to XFS internal ATTR flags */
-	if (!size) {
-		xflags |= ATTR_KERNOVAL;
-		data = NULL;
-	}
-	xflags |= namesp->attr_flag;
-	return namesp->attr_get(vp, attr, (void *)data, size, xflags);
-}
-
-STATIC ssize_t
-xfs_vn_listxattr(
-	struct dentry		*dentry,
-	char			*data,
-	size_t			size)
-{
-	bhv_vnode_t		*vp = vn_from_inode(dentry->d_inode);
-	int			error, xflags = ATTR_KERNAMELS;
-	ssize_t			result;
-
-	if (!size)
-		xflags |= ATTR_KERNOVAL;
-	xflags |= capable(CAP_SYS_ADMIN) ? ATTR_KERNFULLS : ATTR_KERNORMALS;
-
-	error = attr_generic_list(vp, data, size, xflags, &result);
-	if (error < 0)
-		return error;
-	return result;
-}
-
-STATIC int
-xfs_vn_removexattr(
-	struct dentry	*dentry,
-	const char	*name)
-{
-	bhv_vnode_t	*vp = vn_from_inode(dentry->d_inode);
-	char		*attr = (char *)name;
-	attrnames_t	*namesp;
-	int		xflags = 0;
-	int		error;
-
-	namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
-	if (!namesp)
-		return -EOPNOTSUPP;
-	attr += namesp->attr_namelen;
-	error = namesp->attr_capable(vp, NULL);
-	if (error)
-		return error;
-	xflags |= namesp->attr_flag;
-	return namesp->attr_remove(vp, attr, xflags);
-}
-
 STATIC long
 xfs_vn_fallocate(
 	struct inode	*inode,
@@ -853,18 +691,18 @@ xfs_vn_fallocate(
 
 	xfs_ilock(ip, XFS_IOLOCK_EXCL);
 	error = xfs_change_file_space(ip, XFS_IOC_RESVSP, &bf,
-						0, NULL, ATTR_NOLOCK);
+				      0, NULL, XFS_ATTR_NOLOCK);
 	if (!error && !(mode & FALLOC_FL_KEEP_SIZE) &&
 	    offset + len > i_size_read(inode))
 		new_size = offset + len;
 
 	/* Change file size if needed */
 	if (new_size) {
-		bhv_vattr_t	va;
+		struct iattr iattr;
 
-		va.va_mask = XFS_AT_SIZE;
-		va.va_size = new_size;
-		error = xfs_setattr(ip, &va, ATTR_NOLOCK, NULL);
+		iattr.ia_valid = ATTR_SIZE;
+		iattr.ia_size = new_size;
+		error = xfs_setattr(ip, &iattr, XFS_ATTR_NOLOCK, NULL);
 	}
 
 	xfs_iunlock(ip, XFS_IOLOCK_EXCL);
@@ -877,10 +715,10 @@ const struct inode_operations xfs_inode_operations = {
 	.truncate		= xfs_vn_truncate,
 	.getattr		= xfs_vn_getattr,
 	.setattr		= xfs_vn_setattr,
-	.setxattr		= xfs_vn_setxattr,
-	.getxattr		= xfs_vn_getxattr,
+	.setxattr		= generic_setxattr,
+	.getxattr		= generic_getxattr,
+	.removexattr		= generic_removexattr,
 	.listxattr		= xfs_vn_listxattr,
-	.removexattr		= xfs_vn_removexattr,
 	.fallocate		= xfs_vn_fallocate,
 };
 
@@ -891,16 +729,47 @@ const struct inode_operations xfs_dir_inode_operations = {
 	.unlink			= xfs_vn_unlink,
 	.symlink		= xfs_vn_symlink,
 	.mkdir			= xfs_vn_mkdir,
-	.rmdir			= xfs_vn_rmdir,
+	/*
+	 * Yes, XFS uses the same method for rmdir and unlink.
+	 *
+	 * There are some subtile differences deeper in the code,
+	 * but we use S_ISDIR to check for those.
+	 */
+	.rmdir			= xfs_vn_unlink,
+	.mknod			= xfs_vn_mknod,
+	.rename			= xfs_vn_rename,
+	.permission		= xfs_vn_permission,
+	.getattr		= xfs_vn_getattr,
+	.setattr		= xfs_vn_setattr,
+	.setxattr		= generic_setxattr,
+	.getxattr		= generic_getxattr,
+	.removexattr		= generic_removexattr,
+	.listxattr		= xfs_vn_listxattr,
+};
+
+const struct inode_operations xfs_dir_ci_inode_operations = {
+	.create			= xfs_vn_create,
+	.lookup			= xfs_vn_ci_lookup,
+	.link			= xfs_vn_link,
+	.unlink			= xfs_vn_unlink,
+	.symlink		= xfs_vn_symlink,
+	.mkdir			= xfs_vn_mkdir,
+	/*
+	 * Yes, XFS uses the same method for rmdir and unlink.
+	 *
+	 * There are some subtile differences deeper in the code,
+	 * but we use S_ISDIR to check for those.
+	 */
+	.rmdir			= xfs_vn_unlink,
 	.mknod			= xfs_vn_mknod,
 	.rename			= xfs_vn_rename,
 	.permission		= xfs_vn_permission,
 	.getattr		= xfs_vn_getattr,
 	.setattr		= xfs_vn_setattr,
-	.setxattr		= xfs_vn_setxattr,
-	.getxattr		= xfs_vn_getxattr,
+	.setxattr		= generic_setxattr,
+	.getxattr		= generic_getxattr,
+	.removexattr		= generic_removexattr,
 	.listxattr		= xfs_vn_listxattr,
-	.removexattr		= xfs_vn_removexattr,
 };
 
 const struct inode_operations xfs_symlink_inode_operations = {
@@ -910,8 +779,8 @@ const struct inode_operations xfs_symlink_inode_operations = {
 	.permission		= xfs_vn_permission,
 	.getattr		= xfs_vn_getattr,
 	.setattr		= xfs_vn_setattr,
-	.setxattr		= xfs_vn_setxattr,
-	.getxattr		= xfs_vn_getxattr,
+	.setxattr		= generic_setxattr,
+	.getxattr		= generic_getxattr,
+	.removexattr		= generic_removexattr,
 	.listxattr		= xfs_vn_listxattr,
-	.removexattr		= xfs_vn_removexattr,
 };

fs/xfs/linux-2.6/xfs_iops.h

@@ -20,12 +20,14 @@
 
 extern const struct inode_operations xfs_inode_operations;
 extern const struct inode_operations xfs_dir_inode_operations;
+extern const struct inode_operations xfs_dir_ci_inode_operations;
 extern const struct inode_operations xfs_symlink_inode_operations;
 
 extern const struct file_operations xfs_file_operations;
 extern const struct file_operations xfs_dir_file_operations;
 extern const struct file_operations xfs_invis_file_operations;
 
+extern ssize_t xfs_vn_listxattr(struct dentry *, char *data, size_t size);
 
 struct xfs_inode;
 extern void xfs_ichgtime(struct xfs_inode *, int);

fs/xfs/linux-2.6/xfs_linux.h

@@ -76,6 +76,7 @@
 #include <linux/log2.h>
 #include <linux/spinlock.h>
 #include <linux/random.h>
+#include <linux/ctype.h>
 
 #include <asm/page.h>
 #include <asm/div64.h>
@@ -299,4 +300,11 @@ static inline __uint64_t howmany_64(__uint64_t x, __uint32_t y)
 	return x;
 }
 
+/* ARM old ABI has some weird alignment/padding */
+#if defined(__arm__) && !defined(__ARM_EABI__)
+#define __arch_pack __attribute__((packed))
+#else
+#define __arch_pack
+#endif
+
 #endif /* __XFS_LINUX__ */

fs/xfs/linux-2.6/xfs_stats.c

@@ -98,12 +98,21 @@ xfs_read_xfsstats(
 	return len;
 }
 
-void
+int
 xfs_init_procfs(void)
 {
 	if (!proc_mkdir("fs/xfs", NULL))
-		return;
-	create_proc_read_entry("fs/xfs/stat", 0, NULL, xfs_read_xfsstats, NULL);
+		goto out;
+
+	if (!create_proc_read_entry("fs/xfs/stat", 0, NULL,
+			xfs_read_xfsstats, NULL))
+		goto out_remove_entry;
+	return 0;
+
+ out_remove_entry:
+	remove_proc_entry("fs/xfs", NULL);
+ out:
+	return -ENOMEM;
 }
 
 void

fs/xfs/linux-2.6/xfs_stats.h

@@ -134,7 +134,7 @@ DECLARE_PER_CPU(struct xfsstats, xfsstats);
 #define XFS_STATS_DEC(v)	(per_cpu(xfsstats, current_cpu()).v--)
 #define XFS_STATS_ADD(v, inc)	(per_cpu(xfsstats, current_cpu()).v += (inc))
 
-extern void xfs_init_procfs(void);
+extern int xfs_init_procfs(void);
 extern void xfs_cleanup_procfs(void);
 
 
@@ -144,8 +144,14 @@ extern void xfs_cleanup_procfs(void);
 # define XFS_STATS_DEC(count)
 # define XFS_STATS_ADD(count, inc)
 
-static inline void xfs_init_procfs(void) { };
-static inline void xfs_cleanup_procfs(void) { };
+static inline int xfs_init_procfs(void)
+{
+	return 0;
+}
+
+static inline void xfs_cleanup_procfs(void)
+{
+}
 
 #endif	/* !CONFIG_PROC_FS */
 

fs/xfs/linux-2.6/xfs_super.h

@@ -107,12 +107,10 @@ extern void xfs_initialize_vnode(struct xfs_mount *mp, bhv_vnode_t *vp,
 extern void xfs_flush_inode(struct xfs_inode *);
 extern void xfs_flush_device(struct xfs_inode *);
 
-extern int  xfs_blkdev_get(struct xfs_mount *, const char *,
-				struct block_device **);
-extern void xfs_blkdev_put(struct block_device *);
 extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);
 
 extern const struct export_operations xfs_export_operations;
+extern struct xattr_handler *xfs_xattr_handlers[];
 
 #define XFS_M(sb)		((struct xfs_mount *)((sb)->s_fs_info))
 

fs/xfs/linux-2.6/xfs_sysctl.c

@@ -259,15 +259,17 @@ static ctl_table xfs_root_table[] = {
 	{}
 };
 
-void
+int
 xfs_sysctl_register(void)
 {
 	xfs_table_header = register_sysctl_table(xfs_root_table);
+	if (!xfs_table_header)
+		return -ENOMEM;
+	return 0;
 }
 
 void
 xfs_sysctl_unregister(void)
 {
-	if (xfs_table_header)
-		unregister_sysctl_table(xfs_table_header);
+	unregister_sysctl_table(xfs_table_header);
 }

fs/xfs/linux-2.6/xfs_sysctl.h

@@ -93,10 +93,10 @@ enum {
 extern xfs_param_t	xfs_params;
 
 #ifdef CONFIG_SYSCTL
-extern void xfs_sysctl_register(void);
+extern int xfs_sysctl_register(void);
 extern void xfs_sysctl_unregister(void);
 #else
-# define xfs_sysctl_register()		do { } while (0)
+# define xfs_sysctl_register()		(0)
 # define xfs_sysctl_unregister()	do { } while (0)
 #endif /* CONFIG_SYSCTL */
 

fs/xfs/linux-2.6/xfs_vnode.c

@@ -82,56 +82,6 @@ vn_ioerror(
 		xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l);
 }
 
-/*
- * Revalidate the Linux inode from the XFS inode.
- * Note: i_size _not_ updated; we must hold the inode
- * semaphore when doing that - callers responsibility.
- */
-int
-vn_revalidate(
-	bhv_vnode_t		*vp)
-{
-	struct inode		*inode = vn_to_inode(vp);
-	struct xfs_inode	*ip = XFS_I(inode);
-	struct xfs_mount	*mp = ip->i_mount;
-	unsigned long		xflags;
-
-	xfs_itrace_entry(ip);
-
-	if (XFS_FORCED_SHUTDOWN(mp))
-		return -EIO;
-
-	xfs_ilock(ip, XFS_ILOCK_SHARED);
-	inode->i_mode	    = ip->i_d.di_mode;
-	inode->i_uid	    = ip->i_d.di_uid;
-	inode->i_gid	    = ip->i_d.di_gid;
-	inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
-	inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
-	inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
-	inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
-
-	xflags = xfs_ip2xflags(ip);
-	if (xflags & XFS_XFLAG_IMMUTABLE)
-		inode->i_flags |= S_IMMUTABLE;
-	else
-		inode->i_flags &= ~S_IMMUTABLE;
-	if (xflags & XFS_XFLAG_APPEND)
-		inode->i_flags |= S_APPEND;
-	else
-		inode->i_flags &= ~S_APPEND;
-	if (xflags & XFS_XFLAG_SYNC)
-		inode->i_flags |= S_SYNC;
-	else
-		inode->i_flags &= ~S_SYNC;
-	if (xflags & XFS_XFLAG_NOATIME)
-		inode->i_flags |= S_NOATIME;
-	else
-		inode->i_flags &= ~S_NOATIME;
-	xfs_iunlock(ip, XFS_ILOCK_SHARED);
-
-	xfs_iflags_clear(ip, XFS_IMODIFIED);
-	return 0;
-}
 
 /*
  * Add a reference to a referenced vnode.

fs/xfs/linux-2.6/xfs_vnode.h

@@ -19,7 +19,6 @@
 #define __XFS_VNODE_H__
 
 struct file;
-struct bhv_vattr;
 struct xfs_iomap;
 struct attrlist_cursor_kern;
 
@@ -66,87 +65,8 @@ static inline struct inode *vn_to_inode(bhv_vnode_t *vnode)
 					   Prevent VM access to the pages until
 					   the operation completes. */
 
-/*
- * Vnode attributes.  va_mask indicates those attributes the caller
- * wants to set or extract.
- */
-typedef struct bhv_vattr {
-	int		va_mask;	/* bit-mask of attributes present */
-	mode_t		va_mode;	/* file access mode and type */
-	xfs_nlink_t	va_nlink;	/* number of references to file */
-	uid_t		va_uid;		/* owner user id */
-	gid_t		va_gid;		/* owner group id */
-	xfs_ino_t	va_nodeid;	/* file id */
-	xfs_off_t	va_size;	/* file size in bytes */
-	u_long		va_blocksize;	/* blocksize preferred for i/o */
-	struct timespec	va_atime;	/* time of last access */
-	struct timespec	va_mtime;	/* time of last modification */
-	struct timespec	va_ctime;	/* time file changed */
-	u_int		va_gen;		/* generation number of file */
-	xfs_dev_t	va_rdev;	/* device the special file represents */
-	__int64_t	va_nblocks;	/* number of blocks allocated */
-	u_long		va_xflags;	/* random extended file flags */
-	u_long		va_extsize;	/* file extent size */
-	u_long		va_nextents;	/* number of extents in file */
-	u_long		va_anextents;	/* number of attr extents in file */
-	prid_t		va_projid;	/* project id */
-} bhv_vattr_t;
-
-/*
- * setattr or getattr attributes
- */
-#define XFS_AT_TYPE		0x00000001
-#define XFS_AT_MODE		0x00000002
-#define XFS_AT_UID		0x00000004
-#define XFS_AT_GID		0x00000008
-#define XFS_AT_FSID		0x00000010
-#define XFS_AT_NODEID		0x00000020
-#define XFS_AT_NLINK		0x00000040
-#define XFS_AT_SIZE		0x00000080
-#define XFS_AT_ATIME		0x00000100
-#define XFS_AT_MTIME		0x00000200
-#define XFS_AT_CTIME		0x00000400
-#define XFS_AT_RDEV		0x00000800
-#define XFS_AT_BLKSIZE		0x00001000
-#define XFS_AT_NBLOCKS		0x00002000
-#define XFS_AT_VCODE		0x00004000
-#define XFS_AT_MAC		0x00008000
-#define XFS_AT_UPDATIME		0x00010000
-#define XFS_AT_UPDMTIME		0x00020000
-#define XFS_AT_UPDCTIME		0x00040000
-#define XFS_AT_ACL		0x00080000
-#define XFS_AT_CAP		0x00100000
-#define XFS_AT_INF		0x00200000
-#define XFS_AT_XFLAGS		0x00400000
-#define XFS_AT_EXTSIZE		0x00800000
-#define XFS_AT_NEXTENTS		0x01000000
-#define XFS_AT_ANEXTENTS	0x02000000
-#define XFS_AT_PROJID		0x04000000
-#define XFS_AT_SIZE_NOPERM	0x08000000
-#define XFS_AT_GENCOUNT		0x10000000
-
-#define XFS_AT_ALL	(XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
-		XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
-		XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
-		XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\
-		XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\
-		XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT)
-
-#define XFS_AT_STAT	(XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
-		XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
-		XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
-		XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_PROJID)
-
-#define XFS_AT_TIMES	(XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME)
-
-#define XFS_AT_UPDTIMES	(XFS_AT_UPDATIME|XFS_AT_UPDMTIME|XFS_AT_UPDCTIME)
-
-#define XFS_AT_NOSET	(XFS_AT_NLINK|XFS_AT_RDEV|XFS_AT_FSID|XFS_AT_NODEID|\
-		XFS_AT_TYPE|XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|\
-		XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_GENCOUNT)
 
 extern void	vn_init(void);
-extern int	vn_revalidate(bhv_vnode_t *);
 
 /*
  * Yeah, these don't take vnode anymore at all, all this should be
@@ -219,15 +139,6 @@ static inline void vn_atime_to_time_t(bhv_vnode_t *vp, time_t *tt)
 #define VN_DIRTY(vp)	mapping_tagged(vn_to_inode(vp)->i_mapping, \
 					PAGECACHE_TAG_DIRTY)
 
-/*
- * Flags to vop_setattr/getattr.
- */
-#define	ATTR_UTIME	0x01	/* non-default utime(2) request */
-#define	ATTR_DMI	0x08	/* invocation from a DMI function */
-#define	ATTR_LAZY	0x80	/* set/get attributes lazily */
-#define	ATTR_NONBLOCK	0x100	/* return EAGAIN if operation would block */
-#define ATTR_NOLOCK	0x200	/* Don't grab any conflicting locks */
-#define ATTR_NOSIZETOK	0x400	/* Don't get the SIZE token */
 
 /*
  * Tracking vnode activity.

fs/xfs/linux-2.6/xfs_xattr.c

@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2008 Christoph Hellwig.
+ * Portions Copyright (C) 2000-2008 Silicon Graphics, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "xfs.h"
+#include "xfs_da_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_inode.h"
+#include "xfs_attr.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_acl.h"
+#include "xfs_vnodeops.h"
+
+#include <linux/posix_acl_xattr.h>
+#include <linux/xattr.h>
+
+
+/*
+ * ACL handling.  Should eventually be moved into xfs_acl.c
+ */
+
+static int
+xfs_decode_acl(const char *name)
+{
+	if (strcmp(name, "posix_acl_access") == 0)
+		return _ACL_TYPE_ACCESS;
+	else if (strcmp(name, "posix_acl_default") == 0)
+		return _ACL_TYPE_DEFAULT;
+	return -EINVAL;
+}
+
+/*
+ * Get system extended attributes which at the moment only
+ * includes Posix ACLs.
+ */
+static int
+xfs_xattr_system_get(struct inode *inode, const char *name,
+		void *buffer, size_t size)
+{
+	int acl;
+
+	acl = xfs_decode_acl(name);
+	if (acl < 0)
+		return acl;
+
+	return xfs_acl_vget(inode, buffer, size, acl);
+}
+
+static int
+xfs_xattr_system_set(struct inode *inode, const char *name,
+		const void *value, size_t size, int flags)
+{
+	int acl;
+
+	acl = xfs_decode_acl(name);
+	if (acl < 0)
+		return acl;
+	if (flags & XATTR_CREATE)
+		return -EINVAL;
+
+	if (!value)
+		return xfs_acl_vremove(inode, acl);
+
+	return xfs_acl_vset(inode, (void *)value, size, acl);
+}
+
+static struct xattr_handler xfs_xattr_system_handler = {
+	.prefix	= XATTR_SYSTEM_PREFIX,
+	.get	= xfs_xattr_system_get,
+	.set	= xfs_xattr_system_set,
+};
+
+
+/*
+ * Real xattr handling.  The only difference between the namespaces is
+ * a flag passed to the low-level attr code.
+ */
+
+static int
+__xfs_xattr_get(struct inode *inode, const char *name,
+		void *value, size_t size, int xflags)
+{
+	struct xfs_inode *ip = XFS_I(inode);
+	int error, asize = size;
+
+	if (strcmp(name, "") == 0)
+		return -EINVAL;
+
+	/* Convert Linux syscall to XFS internal ATTR flags */
+	if (!size) {
+		xflags |= ATTR_KERNOVAL;
+		value = NULL;
+	}
+
+	error = -xfs_attr_get(ip, name, value, &asize, xflags);
+	if (error)
+		return error;
+	return asize;
+}
+
+static int
+__xfs_xattr_set(struct inode *inode, const char *name, const void *value,
+		size_t size, int flags, int xflags)
+{
+	struct xfs_inode *ip = XFS_I(inode);
+
+	if (strcmp(name, "") == 0)
+		return -EINVAL;
+
+	/* Convert Linux syscall to XFS internal ATTR flags */
+	if (flags & XATTR_CREATE)
+		xflags |= ATTR_CREATE;
+	if (flags & XATTR_REPLACE)
+		xflags |= ATTR_REPLACE;
+
+	if (!value)
+		return -xfs_attr_remove(ip, name, xflags);
+	return -xfs_attr_set(ip, name, (void *)value, size, xflags);
+}
+
+static int
+xfs_xattr_user_get(struct inode *inode, const char *name,
+		void *value, size_t size)
+{
+	return __xfs_xattr_get(inode, name, value, size, 0);
+}
+
+static int
+xfs_xattr_user_set(struct inode *inode, const char *name,
+		const void *value, size_t size, int flags)
+{
+	return __xfs_xattr_set(inode, name, value, size, flags, 0);
+}
+
+static struct xattr_handler xfs_xattr_user_handler = {
+	.prefix	= XATTR_USER_PREFIX,
+	.get	= xfs_xattr_user_get,
+	.set	= xfs_xattr_user_set,
+};
+
+
+static int
+xfs_xattr_trusted_get(struct inode *inode, const char *name,
+		void *value, size_t size)
+{
+	return __xfs_xattr_get(inode, name, value, size, ATTR_ROOT);
+}
+
+static int
+xfs_xattr_trusted_set(struct inode *inode, const char *name,
+		const void *value, size_t size, int flags)
+{
+	return __xfs_xattr_set(inode, name, value, size, flags, ATTR_ROOT);
+}
+
+static struct xattr_handler xfs_xattr_trusted_handler = {
+	.prefix	= XATTR_TRUSTED_PREFIX,
+	.get	= xfs_xattr_trusted_get,
+	.set	= xfs_xattr_trusted_set,
+};
+
+
+static int
+xfs_xattr_secure_get(struct inode *inode, const char *name,
+		void *value, size_t size)
+{
+	return __xfs_xattr_get(inode, name, value, size, ATTR_SECURE);
+}
+
+static int
+xfs_xattr_secure_set(struct inode *inode, const char *name,
+		const void *value, size_t size, int flags)
+{
+	return __xfs_xattr_set(inode, name, value, size, flags, ATTR_SECURE);
+}
+
+static struct xattr_handler xfs_xattr_security_handler = {
+	.prefix	= XATTR_SECURITY_PREFIX,
+	.get	= xfs_xattr_secure_get,
+	.set	= xfs_xattr_secure_set,
+};
+
+
+struct xattr_handler *xfs_xattr_handlers[] = {
+	&xfs_xattr_user_handler,
+	&xfs_xattr_trusted_handler,
+	&xfs_xattr_security_handler,
+	&xfs_xattr_system_handler,
+	NULL
+};
+
+static unsigned int xfs_xattr_prefix_len(int flags)
+{
+	if (flags & XFS_ATTR_SECURE)
+		return sizeof("security");
+	else if (flags & XFS_ATTR_ROOT)
+		return sizeof("trusted");
+	else
+		return sizeof("user");
+}
+
+static const char *xfs_xattr_prefix(int flags)
+{
+	if (flags & XFS_ATTR_SECURE)
+		return xfs_xattr_security_handler.prefix;
+	else if (flags & XFS_ATTR_ROOT)
+		return xfs_xattr_trusted_handler.prefix;
+	else
+		return xfs_xattr_user_handler.prefix;
+}
+
+static int
+xfs_xattr_put_listent(struct xfs_attr_list_context *context, int flags,
+		char *name, int namelen, int valuelen, char *value)
+{
+	unsigned int prefix_len = xfs_xattr_prefix_len(flags);
+	char *offset;
+	int arraytop;
+
+	ASSERT(context->count >= 0);
+
+	/*
+	 * Only show root namespace entries if we are actually allowed to
+	 * see them.
+	 */
+	if ((flags & XFS_ATTR_ROOT) && !capable(CAP_SYS_ADMIN))
+		return 0;
+
+	arraytop = context->count + prefix_len + namelen + 1;
+	if (arraytop > context->firstu) {
+		context->count = -1;	/* insufficient space */
+		return 1;
+	}
+	offset = (char *)context->alist + context->count;
+	strncpy(offset, xfs_xattr_prefix(flags), prefix_len);
+	offset += prefix_len;
+	strncpy(offset, name, namelen);			/* real name */
+	offset += namelen;
+	*offset = '\0';
+	context->count += prefix_len + namelen + 1;
+	return 0;
+}
+
+static int
+xfs_xattr_put_listent_sizes(struct xfs_attr_list_context *context, int flags,
+		char *name, int namelen, int valuelen, char *value)
+{
+	context->count += xfs_xattr_prefix_len(flags) + namelen + 1;
+	return 0;
+}
+
+static int
+list_one_attr(const char *name, const size_t len, void *data,
+		size_t size, ssize_t *result)
+{
+	char *p = data + *result;
+
+	*result += len;
+	if (!size)
+		return 0;
+	if (*result > size)
+		return -ERANGE;
+
+	strcpy(p, name);
+	return 0;
+}
+
+ssize_t
+xfs_vn_listxattr(struct dentry *dentry, char *data, size_t size)
+{
+	struct xfs_attr_list_context context;
+	struct attrlist_cursor_kern cursor = { 0 };
+	struct inode		*inode = dentry->d_inode;
+	int			error;
+
+	/*
+	 * First read the regular on-disk attributes.
+	 */
+	memset(&context, 0, sizeof(context));
+	context.dp = XFS_I(inode);
+	context.cursor = &cursor;
+	context.resynch = 1;
+	context.alist = data;
+	context.bufsize = size;
+	context.firstu = context.bufsize;
+
+	if (size)
+		context.put_listent = xfs_xattr_put_listent;
+	else
+		context.put_listent = xfs_xattr_put_listent_sizes;
+
+	xfs_attr_list_int(&context);
+	if (context.count < 0)
+		return -ERANGE;
+
+	/*
+	 * Then add the two synthetic ACL attributes.
+	 */
+	if (xfs_acl_vhasacl_access(inode)) {
+		error = list_one_attr(POSIX_ACL_XATTR_ACCESS,
+				strlen(POSIX_ACL_XATTR_ACCESS) + 1,
+				data, size, &context.count);
+		if (error)
+			return error;
+	}
+
+	if (xfs_acl_vhasacl_default(inode)) {
+		error = list_one_attr(POSIX_ACL_XATTR_DEFAULT,
+				strlen(POSIX_ACL_XATTR_DEFAULT) + 1,
+				data, size, &context.count);
+		if (error)
+			return error;
+	}
+
+	return context.count;
+}

fs/xfs/quota/xfs_dquot.c

@@ -1435,8 +1435,7 @@ xfs_dqlock2(
 /* ARGSUSED */
 int
 xfs_qm_dqpurge(
-	xfs_dquot_t	*dqp,
-	uint		flags)
+	xfs_dquot_t	*dqp)
 {
 	xfs_dqhash_t	*thishash;
 	xfs_mount_t	*mp = dqp->q_mount;

fs/xfs/quota/xfs_dquot.h

@@ -164,7 +164,7 @@ extern void		xfs_qm_dqprint(xfs_dquot_t *);
 
 extern void		xfs_qm_dqdestroy(xfs_dquot_t *);
 extern int		xfs_qm_dqflush(xfs_dquot_t *, uint);
-extern int		xfs_qm_dqpurge(xfs_dquot_t *, uint);
+extern int		xfs_qm_dqpurge(xfs_dquot_t *);
 extern void		xfs_qm_dqunpin_wait(xfs_dquot_t *);
 extern int		xfs_qm_dqlock_nowait(xfs_dquot_t *);
 extern int		xfs_qm_dqflock_nowait(xfs_dquot_t *);

fs/xfs/quota/xfs_dquot_item.c

@@ -576,8 +576,8 @@ xfs_qm_qoffend_logitem_committed(
 	 * xfs_trans_delete_ail() drops the AIL lock.
 	 */
 	xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs);
-	kmem_free(qfs, sizeof(xfs_qoff_logitem_t));
-	kmem_free(qfe, sizeof(xfs_qoff_logitem_t));
+	kmem_free(qfs);
+	kmem_free(qfe);
 	return (xfs_lsn_t)-1;
 }
 

fs/xfs/quota/xfs_qm.c

@@ -192,8 +192,8 @@ xfs_qm_destroy(
 		xfs_qm_list_destroy(&(xqm->qm_usr_dqhtable[i]));
 		xfs_qm_list_destroy(&(xqm->qm_grp_dqhtable[i]));
 	}
-	kmem_free(xqm->qm_usr_dqhtable, hsize * sizeof(xfs_dqhash_t));
-	kmem_free(xqm->qm_grp_dqhtable, hsize * sizeof(xfs_dqhash_t));
+	kmem_free(xqm->qm_usr_dqhtable);
+	kmem_free(xqm->qm_grp_dqhtable);
 	xqm->qm_usr_dqhtable = NULL;
 	xqm->qm_grp_dqhtable = NULL;
 	xqm->qm_dqhashmask = 0;
@@ -201,7 +201,7 @@ xfs_qm_destroy(
 #ifdef DEBUG
 	mutex_destroy(&qcheck_lock);
 #endif
-	kmem_free(xqm, sizeof(xfs_qm_t));
+	kmem_free(xqm);
 }
 
 /*
@@ -445,11 +445,11 @@ xfs_qm_unmount_quotas(
 		}
 	}
 	if (uqp) {
-		 XFS_PURGE_INODE(uqp);
+		 IRELE(uqp);
 		 mp->m_quotainfo->qi_uquotaip = NULL;
 	}
 	if (gqp) {
-		XFS_PURGE_INODE(gqp);
+		IRELE(gqp);
 		mp->m_quotainfo->qi_gquotaip = NULL;
 	}
 out:
@@ -631,7 +631,7 @@ xfs_qm_dqpurge_int(
 		 * freelist in INACTIVE state.
 		 */
 		nextdqp = dqp->MPL_NEXT;
-		nmisses += xfs_qm_dqpurge(dqp, flags);
+		nmisses += xfs_qm_dqpurge(dqp);
 		dqp = nextdqp;
 	}
 	xfs_qm_mplist_unlock(mp);
@@ -1134,7 +1134,7 @@ xfs_qm_init_quotainfo(
 	 * and change the superblock accordingly.
 	 */
 	if ((error = xfs_qm_init_quotainos(mp))) {
-		kmem_free(qinf, sizeof(xfs_quotainfo_t));
+		kmem_free(qinf);
 		mp->m_quotainfo = NULL;
 		return error;
 	}
@@ -1240,15 +1240,15 @@ xfs_qm_destroy_quotainfo(
 	xfs_qm_list_destroy(&qi->qi_dqlist);
 
 	if (qi->qi_uquotaip) {
-		XFS_PURGE_INODE(qi->qi_uquotaip);
+		IRELE(qi->qi_uquotaip);
 		qi->qi_uquotaip = NULL; /* paranoia */
 	}
 	if (qi->qi_gquotaip) {
-		XFS_PURGE_INODE(qi->qi_gquotaip);
+		IRELE(qi->qi_gquotaip);
 		qi->qi_gquotaip = NULL;
 	}
 	mutex_destroy(&qi->qi_quotaofflock);
-	kmem_free(qi, sizeof(xfs_quotainfo_t));
+	kmem_free(qi);
 	mp->m_quotainfo = NULL;
 }
 
@@ -1394,7 +1394,7 @@ xfs_qm_qino_alloc(
 	 * locked exclusively and joined to the transaction already.
 	 */
 	ASSERT(xfs_isilocked(*ip, XFS_ILOCK_EXCL));
-	VN_HOLD(XFS_ITOV((*ip)));
+	IHOLD(*ip);
 
 	/*
 	 * Make the changes in the superblock, and log those too.
@@ -1623,7 +1623,7 @@ xfs_qm_dqiterate(
 			break;
 	} while (nmaps > 0);
 
-	kmem_free(map, XFS_DQITER_MAP_SIZE * sizeof(*map));
+	kmem_free(map);
 
 	return error;
 }

fs/xfs/quota/xfs_qm_syscalls.c

@@ -362,11 +362,11 @@ xfs_qm_scall_quotaoff(
 	 * if we don't need them anymore.
 	 */
 	if ((dqtype & XFS_QMOPT_UQUOTA) && XFS_QI_UQIP(mp)) {
-		XFS_PURGE_INODE(XFS_QI_UQIP(mp));
+		IRELE(XFS_QI_UQIP(mp));
 		XFS_QI_UQIP(mp) = NULL;
 	}
 	if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && XFS_QI_GQIP(mp)) {
-		XFS_PURGE_INODE(XFS_QI_GQIP(mp));
+		IRELE(XFS_QI_GQIP(mp));
 		XFS_QI_GQIP(mp) = NULL;
 	}
 out_error:
@@ -1449,14 +1449,14 @@ xfs_qm_internalqcheck(
 		for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
 			xfs_dqtest_cmp(d);
 			e = (xfs_dqtest_t *) d->HL_NEXT;
-			kmem_free(d, sizeof(xfs_dqtest_t));
+			kmem_free(d);
 			d = e;
 		}
 		h1 = &qmtest_gdqtab[i];
 		for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
 			xfs_dqtest_cmp(d);
 			e = (xfs_dqtest_t *) d->HL_NEXT;
-			kmem_free(d, sizeof(xfs_dqtest_t));
+			kmem_free(d);
 			d = e;
 		}
 	}
@@ -1467,8 +1467,8 @@ xfs_qm_internalqcheck(
 	} else {
 		cmn_err(CE_DEBUG, "******** quotacheck successful! ********");
 	}
-	kmem_free(qmtest_udqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
-	kmem_free(qmtest_gdqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
+	kmem_free(qmtest_udqtab);
+	kmem_free(qmtest_gdqtab);
 	mutex_unlock(&qcheck_lock);
 	return (qmtest_nfails);
 }

fs/xfs/quota/xfs_quota_priv.h

@@ -158,9 +158,6 @@ for ((dqp) = (qlist)->qh_next; (dqp) != (xfs_dquot_t *)(qlist); \
 #define XFS_IS_SUSER_DQUOT(dqp)		\
 	(!((dqp)->q_core.d_id))
 
-#define XFS_PURGE_INODE(ip)		\
-	IRELE(ip);
-
 #define DQFLAGTO_TYPESTR(d)	(((d)->dq_flags & XFS_DQ_USER) ? "USR" : \
 				 (((d)->dq_flags & XFS_DQ_GROUP) ? "GRP" : \
 				 (((d)->dq_flags & XFS_DQ_PROJ) ? "PRJ":"???")))

fs/xfs/support/ktrace.c

@@ -89,7 +89,7 @@ ktrace_alloc(int nentries, unsigned int __nocast sleep)
 		if (sleep & KM_SLEEP)
 			panic("ktrace_alloc: NULL memory on KM_SLEEP request!");
 
-		kmem_free(ktp, sizeof(*ktp));
+		kmem_free(ktp);
 
 		return NULL;
 	}
@@ -126,7 +126,7 @@ ktrace_free(ktrace_t *ktp)
 	} else {
 		entries_size = (int)(ktp->kt_nentries * sizeof(ktrace_entry_t));
 
-		kmem_free(ktp->kt_entries, entries_size);
+		kmem_free(ktp->kt_entries);
 	}
 
 	kmem_zone_free(ktrace_hdr_zone, ktp);

fs/xfs/support/uuid.c

@@ -17,7 +17,7 @@
  */
 #include <xfs.h>
 
-static mutex_t	uuid_monitor;
+static DEFINE_MUTEX(uuid_monitor);
 static int	uuid_table_size;
 static uuid_t	*uuid_table;
 
@@ -132,9 +132,3 @@ uuid_table_remove(uuid_t *uuid)
 	ASSERT(i < uuid_table_size);
 	mutex_unlock(&uuid_monitor);
 }
-
-void __init
-uuid_init(void)
-{
-	mutex_init(&uuid_monitor);
-}

fs/xfs/support/uuid.h

@@ -22,7 +22,6 @@ typedef struct {
 	unsigned char	__u_bits[16];
 } uuid_t;
 
-extern void uuid_init(void);
 extern void uuid_create_nil(uuid_t *uuid);
 extern int uuid_is_nil(uuid_t *uuid);
 extern int uuid_equal(uuid_t *uuid1, uuid_t *uuid2);

fs/xfs/xfs_acl.c

@@ -341,8 +341,7 @@ xfs_acl_iaccess(
 
 	/* If the file has no ACL return -1. */
 	rval = sizeof(xfs_acl_t);
-	if (xfs_attr_fetch(ip, &acl_name, (char *)acl, &rval,
-					ATTR_ROOT | ATTR_KERNACCESS)) {
+	if (xfs_attr_fetch(ip, &acl_name, (char *)acl, &rval, ATTR_ROOT)) {
 		_ACL_FREE(acl);
 		return -1;
 	}
@@ -720,7 +719,7 @@ xfs_acl_setmode(
 	xfs_acl_t	*acl,
 	int		*basicperms)
 {
-	bhv_vattr_t	va;
+	struct iattr	iattr;
 	xfs_acl_entry_t	*ap;
 	xfs_acl_entry_t	*gap = NULL;
 	int		i, nomask = 1;
@@ -734,25 +733,25 @@ xfs_acl_setmode(
 	 * Copy the u::, g::, o::, and m:: bits from the ACL into the
 	 * mode.  The m:: bits take precedence over the g:: bits.
 	 */
-	va.va_mask = XFS_AT_MODE;
-	va.va_mode = xfs_vtoi(vp)->i_d.di_mode;
-	va.va_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
+	iattr.ia_valid = ATTR_MODE;
+	iattr.ia_mode = xfs_vtoi(vp)->i_d.di_mode;
+	iattr.ia_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
 	ap = acl->acl_entry;
 	for (i = 0; i < acl->acl_cnt; ++i) {
 		switch (ap->ae_tag) {
 		case ACL_USER_OBJ:
-			va.va_mode |= ap->ae_perm << 6;
+			iattr.ia_mode |= ap->ae_perm << 6;
 			break;
 		case ACL_GROUP_OBJ:
 			gap = ap;
 			break;
 		case ACL_MASK:	/* more than just standard modes */
 			nomask = 0;
-			va.va_mode |= ap->ae_perm << 3;
+			iattr.ia_mode |= ap->ae_perm << 3;
 			*basicperms = 0;
 			break;
 		case ACL_OTHER:
-			va.va_mode |= ap->ae_perm;
+			iattr.ia_mode |= ap->ae_perm;
 			break;
 		default:	/* more than just standard modes */
 			*basicperms = 0;
@@ -763,9 +762,9 @@ xfs_acl_setmode(
 
 	/* Set the group bits from ACL_GROUP_OBJ if there's no ACL_MASK */
 	if (gap && nomask)
-		va.va_mode |= gap->ae_perm << 3;
+		iattr.ia_mode |= gap->ae_perm << 3;
 
-	return xfs_setattr(xfs_vtoi(vp), &va, 0, sys_cred);
+	return xfs_setattr(xfs_vtoi(vp), &iattr, 0, sys_cred);
 }
 
 /*

fs/xfs/xfs_acl.h

@@ -46,6 +46,8 @@ typedef struct xfs_acl {
 #define SGI_ACL_FILE_SIZE	(sizeof(SGI_ACL_FILE)-1)
 #define SGI_ACL_DEFAULT_SIZE	(sizeof(SGI_ACL_DEFAULT)-1)
 
+#define _ACL_TYPE_ACCESS	1
+#define _ACL_TYPE_DEFAULT	2
 
 #ifdef CONFIG_XFS_POSIX_ACL
 
@@ -66,8 +68,6 @@ extern int xfs_acl_vset(bhv_vnode_t *, void *, size_t, int);
 extern int xfs_acl_vget(bhv_vnode_t *, void *, size_t, int);
 extern int xfs_acl_vremove(bhv_vnode_t *, int);
 
-#define _ACL_TYPE_ACCESS	1
-#define _ACL_TYPE_DEFAULT	2
 #define _ACL_PERM_INVALID(perm)	((perm) & ~(ACL_READ|ACL_WRITE|ACL_EXECUTE))
 
 #define _ACL_INHERIT(c,m,d)	(xfs_acl_inherit(c,m,d))

fs/xfs/xfs_attr.c

@@ -16,8 +16,6 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include <linux/capability.h>
-
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_types.h"
@@ -57,11 +55,6 @@
  * Provide the external interfaces to manage attribute lists.
  */
 
-#define ATTR_SYSCOUNT	2
-static struct attrnames posix_acl_access;
-static struct attrnames posix_acl_default;
-static struct attrnames *attr_system_names[ATTR_SYSCOUNT];
-
 /*========================================================================
  * Function prototypes for the kernel.
  *========================================================================*/
@@ -116,6 +109,17 @@ xfs_attr_name_to_xname(
 	return 0;
 }
 
+STATIC int
+xfs_inode_hasattr(
+	struct xfs_inode	*ip)
+{
+	if (!XFS_IFORK_Q(ip) ||
+	    (ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
+	     ip->i_d.di_anextents == 0))
+		return 0;
+	return 1;
+}
+
 /*========================================================================
  * Overall external interface routines.
  *========================================================================*/
@@ -127,10 +131,8 @@ xfs_attr_fetch(xfs_inode_t *ip, struct xfs_name *name,
 	xfs_da_args_t   args;
 	int             error;
 
-	if ((XFS_IFORK_Q(ip) == 0) ||
-	    (ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-	     ip->i_d.di_anextents == 0))
-		return(ENOATTR);
+	if (!xfs_inode_hasattr(ip))
+		return ENOATTR;
 
 	/*
 	 * Fill in the arg structure for this request.
@@ -148,11 +150,7 @@ xfs_attr_fetch(xfs_inode_t *ip, struct xfs_name *name,
 	/*
 	 * Decide on what work routines to call based on the inode size.
 	 */
-	if (XFS_IFORK_Q(ip) == 0 ||
-	    (ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-	     ip->i_d.di_anextents == 0)) {
-		error = XFS_ERROR(ENOATTR);
-	} else if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
+	if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
 		error = xfs_attr_shortform_getvalue(&args);
 	} else if (xfs_bmap_one_block(ip, XFS_ATTR_FORK)) {
 		error = xfs_attr_leaf_get(&args);
@@ -241,8 +239,7 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
 	args.firstblock = &firstblock;
 	args.flist = &flist;
 	args.whichfork = XFS_ATTR_FORK;
-	args.addname = 1;
-	args.oknoent = 1;
+	args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT;
 
 	/*
 	 * Determine space new attribute will use, and if it would be
@@ -529,9 +526,7 @@ xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
 	/*
 	 * Decide on what work routines to call based on the inode size.
 	 */
-	if (XFS_IFORK_Q(dp) == 0 ||
-	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-	     dp->i_d.di_anextents == 0)) {
+	if (!xfs_inode_hasattr(dp)) {
 		error = XFS_ERROR(ENOATTR);
 		goto out;
 	}
@@ -601,29 +596,33 @@ xfs_attr_remove(
 		return error;
 
 	xfs_ilock(dp, XFS_ILOCK_SHARED);
-	if (XFS_IFORK_Q(dp) == 0 ||
-		   (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-		    dp->i_d.di_anextents == 0)) {
+	if (!xfs_inode_hasattr(dp)) {
 		xfs_iunlock(dp, XFS_ILOCK_SHARED);
-		return(XFS_ERROR(ENOATTR));
+		return XFS_ERROR(ENOATTR);
 	}
 	xfs_iunlock(dp, XFS_ILOCK_SHARED);
 
 	return xfs_attr_remove_int(dp, &xname, flags);
 }
 
-STATIC int
+int
 xfs_attr_list_int(xfs_attr_list_context_t *context)
 {
 	int error;
 	xfs_inode_t *dp = context->dp;
 
+	XFS_STATS_INC(xs_attr_list);
+
+	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+		return EIO;
+
+	xfs_ilock(dp, XFS_ILOCK_SHARED);
+	xfs_attr_trace_l_c("syscall start", context);
+
 	/*
 	 * Decide on what work routines to call based on the inode size.
 	 */
-	if (XFS_IFORK_Q(dp) == 0 ||
-	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-	     dp->i_d.di_anextents == 0)) {
+	if (!xfs_inode_hasattr(dp)) {
 		error = 0;
 	} else if (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
 		error = xfs_attr_shortform_list(context);
@@ -632,6 +631,10 @@ xfs_attr_list_int(xfs_attr_list_context_t *context)
 	} else {
 		error = xfs_attr_node_list(context);
 	}
+
+	xfs_iunlock(dp, XFS_ILOCK_SHARED);
+	xfs_attr_trace_l_c("syscall end", context);
+
 	return error;
 }
 
@@ -648,74 +651,50 @@ xfs_attr_list_int(xfs_attr_list_context_t *context)
  */
 /*ARGSUSED*/
 STATIC int
-xfs_attr_put_listent(xfs_attr_list_context_t *context, attrnames_t *namesp,
+xfs_attr_put_listent(xfs_attr_list_context_t *context, int flags,
 		     char *name, int namelen,
 		     int valuelen, char *value)
 {
+	struct attrlist *alist = (struct attrlist *)context->alist;
 	attrlist_ent_t *aep;
 	int arraytop;
 
 	ASSERT(!(context->flags & ATTR_KERNOVAL));
 	ASSERT(context->count >= 0);
 	ASSERT(context->count < (ATTR_MAX_VALUELEN/8));
-	ASSERT(context->firstu >= sizeof(*context->alist));
+	ASSERT(context->firstu >= sizeof(*alist));
 	ASSERT(context->firstu <= context->bufsize);
 
-	arraytop = sizeof(*context->alist) +
-			context->count * sizeof(context->alist->al_offset[0]);
+	/*
+	 * Only list entries in the right namespace.
+	 */
+	if (((context->flags & ATTR_SECURE) == 0) !=
+	    ((flags & XFS_ATTR_SECURE) == 0))
+		return 0;
+	if (((context->flags & ATTR_ROOT) == 0) !=
+	    ((flags & XFS_ATTR_ROOT) == 0))
+		return 0;
+
+	arraytop = sizeof(*alist) +
+			context->count * sizeof(alist->al_offset[0]);
 	context->firstu -= ATTR_ENTSIZE(namelen);
 	if (context->firstu < arraytop) {
 		xfs_attr_trace_l_c("buffer full", context);
-		context->alist->al_more = 1;
+		alist->al_more = 1;
 		context->seen_enough = 1;
 		return 1;
 	}
 
-	aep = (attrlist_ent_t *)&(((char *)context->alist)[ context->firstu ]);
+	aep = (attrlist_ent_t *)&context->alist[context->firstu];
 	aep->a_valuelen = valuelen;
 	memcpy(aep->a_name, name, namelen);
-	aep->a_name[ namelen ] = 0;
-	context->alist->al_offset[ context->count++ ] = context->firstu;
-	context->alist->al_count = context->count;
+	aep->a_name[namelen] = 0;
+	alist->al_offset[context->count++] = context->firstu;
+	alist->al_count = context->count;
 	xfs_attr_trace_l_c("add", context);
 	return 0;
 }
 
-STATIC int
-xfs_attr_kern_list(xfs_attr_list_context_t *context, attrnames_t *namesp,
-		     char *name, int namelen,
-		     int valuelen, char *value)
-{
-	char *offset;
-	int arraytop;
-
-	ASSERT(context->count >= 0);
-
-	arraytop = context->count + namesp->attr_namelen + namelen + 1;
-	if (arraytop > context->firstu) {
-		context->count = -1;	/* insufficient space */
-		return 1;
-	}
-	offset = (char *)context->alist + context->count;
-	strncpy(offset, namesp->attr_name, namesp->attr_namelen);
-	offset += namesp->attr_namelen;
-	strncpy(offset, name, namelen);			/* real name */
-	offset += namelen;
-	*offset = '\0';
-	context->count += namesp->attr_namelen + namelen + 1;
-	return 0;
-}
-
-/*ARGSUSED*/
-STATIC int
-xfs_attr_kern_list_sizes(xfs_attr_list_context_t *context, attrnames_t *namesp,
-		     char *name, int namelen,
-		     int valuelen, char *value)
-{
-	context->count += namesp->attr_namelen + namelen + 1;
-	return 0;
-}
-
 /*
  * Generate a list of extended attribute names and optionally
  * also value lengths.  Positive return value follows the XFS
@@ -732,10 +711,9 @@ xfs_attr_list(
 	attrlist_cursor_kern_t *cursor)
 {
 	xfs_attr_list_context_t context;
+	struct attrlist *alist;
 	int error;
 
-	XFS_STATS_INC(xs_attr_list);
-
 	/*
 	 * Validate the cursor.
 	 */
@@ -756,52 +734,23 @@ xfs_attr_list(
 	/*
 	 * Initialize the output buffer.
 	 */
+	memset(&context, 0, sizeof(context));
 	context.dp = dp;
 	context.cursor = cursor;
-	context.count = 0;
-	context.dupcnt = 0;
 	context.resynch = 1;
 	context.flags = flags;
-	context.seen_enough = 0;
-	context.alist = (attrlist_t *)buffer;
-	context.put_value = 0;
-
-	if (flags & ATTR_KERNAMELS) {
-		context.bufsize = bufsize;
-		context.firstu = context.bufsize;
-		if (flags & ATTR_KERNOVAL)
-			context.put_listent = xfs_attr_kern_list_sizes;
-		else
-			context.put_listent = xfs_attr_kern_list;
-	} else {
-		context.bufsize = (bufsize & ~(sizeof(int)-1));  /* align */
-		context.firstu = context.bufsize;
-		context.alist->al_count = 0;
-		context.alist->al_more = 0;
-		context.alist->al_offset[0] = context.bufsize;
-		context.put_listent = xfs_attr_put_listent;
-	}
+	context.alist = buffer;
+	context.bufsize = (bufsize & ~(sizeof(int)-1));  /* align */
+	context.firstu = context.bufsize;
+	context.put_listent = xfs_attr_put_listent;
 
-	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
-		return EIO;
-
-	xfs_ilock(dp, XFS_ILOCK_SHARED);
-	xfs_attr_trace_l_c("syscall start", &context);
+	alist = (struct attrlist *)context.alist;
+	alist->al_count = 0;
+	alist->al_more = 0;
+	alist->al_offset[0] = context.bufsize;
 
 	error = xfs_attr_list_int(&context);
-
-	xfs_iunlock(dp, XFS_ILOCK_SHARED);
-	xfs_attr_trace_l_c("syscall end", &context);
-
-	if (context.flags & (ATTR_KERNOVAL|ATTR_KERNAMELS)) {
-		/* must return negated buffer size or the error */
-		if (context.count < 0)
-			error = XFS_ERROR(ERANGE);
-		else
-			error = -context.count;
-	} else
-		ASSERT(error >= 0);
-
+	ASSERT(error >= 0);
 	return error;
 }
 
@@ -816,12 +765,10 @@ xfs_attr_inactive(xfs_inode_t *dp)
 	ASSERT(! XFS_NOT_DQATTACHED(mp, dp));
 
 	xfs_ilock(dp, XFS_ILOCK_SHARED);
-	if ((XFS_IFORK_Q(dp) == 0) ||
-	    (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) ||
-	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-	     dp->i_d.di_anextents == 0)) {
+	if (!xfs_inode_hasattr(dp) ||
+	    dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
 		xfs_iunlock(dp, XFS_ILOCK_SHARED);
-		return(0);
+		return 0;
 	}
 	xfs_iunlock(dp, XFS_ILOCK_SHARED);
 
@@ -854,10 +801,8 @@ xfs_attr_inactive(xfs_inode_t *dp)
 	/*
 	 * Decide on what work routines to call based on the inode size.
 	 */
-	if ((XFS_IFORK_Q(dp) == 0) ||
-	    (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) ||
-	    (dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
-	     dp->i_d.di_anextents == 0)) {
+	if (!xfs_inode_hasattr(dp) ||
+	    dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
 		error = 0;
 		goto out;
 	}
@@ -974,7 +919,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
 			xfs_da_brelse(args->trans, bp);
 			return(retval);
 		}
-		args->rename = 1;			/* an atomic rename */
+		args->op_flags |= XFS_DA_OP_RENAME;	/* an atomic rename */
 		args->blkno2 = args->blkno;		/* set 2nd entry info*/
 		args->index2 = args->index;
 		args->rmtblkno2 = args->rmtblkno;
@@ -1054,7 +999,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
 	 * so that one disappears and one appears atomically.  Then we
 	 * must remove the "old" attribute/value pair.
 	 */
-	if (args->rename) {
+	if (args->op_flags & XFS_DA_OP_RENAME) {
 		/*
 		 * In a separate transaction, set the incomplete flag on the
 		 * "old" attr and clear the incomplete flag on the "new" attr.
@@ -1307,7 +1252,7 @@ restart:
 	} else if (retval == EEXIST) {
 		if (args->flags & ATTR_CREATE)
 			goto out;
-		args->rename = 1;			/* atomic rename op */
+		args->op_flags |= XFS_DA_OP_RENAME;	/* atomic rename op */
 		args->blkno2 = args->blkno;		/* set 2nd entry info*/
 		args->index2 = args->index;
 		args->rmtblkno2 = args->rmtblkno;
@@ -1425,7 +1370,7 @@ restart:
 	 * so that one disappears and one appears atomically.  Then we
 	 * must remove the "old" attribute/value pair.
 	 */
-	if (args->rename) {
+	if (args->op_flags & XFS_DA_OP_RENAME) {
 		/*
 		 * In a separate transaction, set the incomplete flag on the
 		 * "old" attr and clear the incomplete flag on the "new" attr.
@@ -2300,23 +2245,7 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
 void
 xfs_attr_trace_l_c(char *where, struct xfs_attr_list_context *context)
 {
-	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_C, where,
-		(__psunsigned_t)context->dp,
-		(__psunsigned_t)context->cursor->hashval,
-		(__psunsigned_t)context->cursor->blkno,
-		(__psunsigned_t)context->cursor->offset,
-		(__psunsigned_t)context->alist,
-		(__psunsigned_t)context->bufsize,
-		(__psunsigned_t)context->count,
-		(__psunsigned_t)context->firstu,
-		(__psunsigned_t)
-			((context->count > 0) &&
-			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
-				? (ATTR_ENTRY(context->alist,
-					      context->count-1)->a_valuelen)
-				: 0,
-		(__psunsigned_t)context->dupcnt,
-		(__psunsigned_t)context->flags,
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_C, where, context,
 		(__psunsigned_t)NULL,
 		(__psunsigned_t)NULL,
 		(__psunsigned_t)NULL);
@@ -2329,23 +2258,7 @@ void
 xfs_attr_trace_l_cn(char *where, struct xfs_attr_list_context *context,
 			 struct xfs_da_intnode *node)
 {
-	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CN, where,
-		(__psunsigned_t)context->dp,
-		(__psunsigned_t)context->cursor->hashval,
-		(__psunsigned_t)context->cursor->blkno,
-		(__psunsigned_t)context->cursor->offset,
-		(__psunsigned_t)context->alist,
-		(__psunsigned_t)context->bufsize,
-		(__psunsigned_t)context->count,
-		(__psunsigned_t)context->firstu,
-		(__psunsigned_t)
-			((context->count > 0) &&
-			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
-				? (ATTR_ENTRY(context->alist,
-					      context->count-1)->a_valuelen)
-				: 0,
-		(__psunsigned_t)context->dupcnt,
-		(__psunsigned_t)context->flags,
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CN, where, context,
 		(__psunsigned_t)be16_to_cpu(node->hdr.count),
 		(__psunsigned_t)be32_to_cpu(node->btree[0].hashval),
 		(__psunsigned_t)be32_to_cpu(node->btree[
@@ -2359,23 +2272,7 @@ void
 xfs_attr_trace_l_cb(char *where, struct xfs_attr_list_context *context,
 			  struct xfs_da_node_entry *btree)
 {
-	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CB, where,
-		(__psunsigned_t)context->dp,
-		(__psunsigned_t)context->cursor->hashval,
-		(__psunsigned_t)context->cursor->blkno,
-		(__psunsigned_t)context->cursor->offset,
-		(__psunsigned_t)context->alist,
-		(__psunsigned_t)context->bufsize,
-		(__psunsigned_t)context->count,
-		(__psunsigned_t)context->firstu,
-		(__psunsigned_t)
-			((context->count > 0) &&
-			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
-				? (ATTR_ENTRY(context->alist,
-					      context->count-1)->a_valuelen)
-				: 0,
-		(__psunsigned_t)context->dupcnt,
-		(__psunsigned_t)context->flags,
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CB, where, context,
 		(__psunsigned_t)be32_to_cpu(btree->hashval),
 		(__psunsigned_t)be32_to_cpu(btree->before),
 		(__psunsigned_t)NULL);
@@ -2388,23 +2285,7 @@ void
 xfs_attr_trace_l_cl(char *where, struct xfs_attr_list_context *context,
 			      struct xfs_attr_leafblock *leaf)
 {
-	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CL, where,
-		(__psunsigned_t)context->dp,
-		(__psunsigned_t)context->cursor->hashval,
-		(__psunsigned_t)context->cursor->blkno,
-		(__psunsigned_t)context->cursor->offset,
-		(__psunsigned_t)context->alist,
-		(__psunsigned_t)context->bufsize,
-		(__psunsigned_t)context->count,
-		(__psunsigned_t)context->firstu,
-		(__psunsigned_t)
-			((context->count > 0) &&
-			!(context->flags & (ATTR_KERNAMELS|ATTR_KERNOVAL)))
-				? (ATTR_ENTRY(context->alist,
-					      context->count-1)->a_valuelen)
-				: 0,
-		(__psunsigned_t)context->dupcnt,
-		(__psunsigned_t)context->flags,
+	xfs_attr_trace_enter(XFS_ATTR_KTRACE_L_CL, where, context,
 		(__psunsigned_t)be16_to_cpu(leaf->hdr.count),
 		(__psunsigned_t)be32_to_cpu(leaf->entries[0].hashval),
 		(__psunsigned_t)be32_to_cpu(leaf->entries[
@@ -2417,329 +2298,24 @@ xfs_attr_trace_l_cl(char *where, struct xfs_attr_list_context *context,
  */
 void
 xfs_attr_trace_enter(int type, char *where,
-			 __psunsigned_t a2, __psunsigned_t a3,
-			 __psunsigned_t a4, __psunsigned_t a5,
-			 __psunsigned_t a6, __psunsigned_t a7,
-			 __psunsigned_t a8, __psunsigned_t a9,
-			 __psunsigned_t a10, __psunsigned_t a11,
-			 __psunsigned_t a12, __psunsigned_t a13,
-			 __psunsigned_t a14, __psunsigned_t a15)
+			 struct xfs_attr_list_context *context,
+			 __psunsigned_t a13, __psunsigned_t a14,
+			 __psunsigned_t a15)
 {
 	ASSERT(xfs_attr_trace_buf);
 	ktrace_enter(xfs_attr_trace_buf, (void *)((__psunsigned_t)type),
-					 (void *)where,
-					 (void *)a2,  (void *)a3,  (void *)a4,
-					 (void *)a5,  (void *)a6,  (void *)a7,
-					 (void *)a8,  (void *)a9,  (void *)a10,
-					 (void *)a11, (void *)a12, (void *)a13,
-					 (void *)a14, (void *)a15);
+		(void *)((__psunsigned_t)where),
+		(void *)((__psunsigned_t)context->dp),
+		(void *)((__psunsigned_t)context->cursor->hashval),
+		(void *)((__psunsigned_t)context->cursor->blkno),
+		(void *)((__psunsigned_t)context->cursor->offset),
+		(void *)((__psunsigned_t)context->alist),
+		(void *)((__psunsigned_t)context->bufsize),
+		(void *)((__psunsigned_t)context->count),
+		(void *)((__psunsigned_t)context->firstu),
+		NULL,
+		(void *)((__psunsigned_t)context->dupcnt),
+		(void *)((__psunsigned_t)context->flags),
+		(void *)a13, (void *)a14, (void *)a15);
 }
 #endif	/* XFS_ATTR_TRACE */
-
-
-/*========================================================================
- * System (pseudo) namespace attribute interface routines.
- *========================================================================*/
-
-STATIC int
-posix_acl_access_set(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	return xfs_acl_vset(vp, data, size, _ACL_TYPE_ACCESS);
-}
-
-STATIC int
-posix_acl_access_remove(
-	bhv_vnode_t *vp, char *name, int xflags)
-{
-	return xfs_acl_vremove(vp, _ACL_TYPE_ACCESS);
-}
-
-STATIC int
-posix_acl_access_get(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	return xfs_acl_vget(vp, data, size, _ACL_TYPE_ACCESS);
-}
-
-STATIC int
-posix_acl_access_exists(
-	bhv_vnode_t *vp)
-{
-	return xfs_acl_vhasacl_access(vp);
-}
-
-STATIC int
-posix_acl_default_set(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	return xfs_acl_vset(vp, data, size, _ACL_TYPE_DEFAULT);
-}
-
-STATIC int
-posix_acl_default_get(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	return xfs_acl_vget(vp, data, size, _ACL_TYPE_DEFAULT);
-}
-
-STATIC int
-posix_acl_default_remove(
-	bhv_vnode_t *vp, char *name, int xflags)
-{
-	return xfs_acl_vremove(vp, _ACL_TYPE_DEFAULT);
-}
-
-STATIC int
-posix_acl_default_exists(
-	bhv_vnode_t *vp)
-{
-	return xfs_acl_vhasacl_default(vp);
-}
-
-static struct attrnames posix_acl_access = {
-	.attr_name	= "posix_acl_access",
-	.attr_namelen	= sizeof("posix_acl_access") - 1,
-	.attr_get	= posix_acl_access_get,
-	.attr_set	= posix_acl_access_set,
-	.attr_remove	= posix_acl_access_remove,
-	.attr_exists	= posix_acl_access_exists,
-};
-
-static struct attrnames posix_acl_default = {
-	.attr_name	= "posix_acl_default",
-	.attr_namelen	= sizeof("posix_acl_default") - 1,
-	.attr_get	= posix_acl_default_get,
-	.attr_set	= posix_acl_default_set,
-	.attr_remove	= posix_acl_default_remove,
-	.attr_exists	= posix_acl_default_exists,
-};
-
-static struct attrnames *attr_system_names[] =
-	{ &posix_acl_access, &posix_acl_default };
-
-
-/*========================================================================
- * Namespace-prefix-style attribute name interface routines.
- *========================================================================*/
-
-STATIC int
-attr_generic_set(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	return -xfs_attr_set(xfs_vtoi(vp), name, data, size, xflags);
-}
-
-STATIC int
-attr_generic_get(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	int	error, asize = size;
-
-	error = xfs_attr_get(xfs_vtoi(vp), name, data, &asize, xflags);
-	if (!error)
-		return asize;
-	return -error;
-}
-
-STATIC int
-attr_generic_remove(
-	bhv_vnode_t *vp, char *name, int xflags)
-{
-	return -xfs_attr_remove(xfs_vtoi(vp), name, xflags);
-}
-
-STATIC int
-attr_generic_listadd(
-	attrnames_t		*prefix,
-	attrnames_t		*namesp,
-	void			*data,
-	size_t			size,
-	ssize_t			*result)
-{
-	char			*p = data + *result;
-
-	*result += prefix->attr_namelen;
-	*result += namesp->attr_namelen + 1;
-	if (!size)
-		return 0;
-	if (*result > size)
-		return -ERANGE;
-	strcpy(p, prefix->attr_name);
-	p += prefix->attr_namelen;
-	strcpy(p, namesp->attr_name);
-	p += namesp->attr_namelen + 1;
-	return 0;
-}
-
-STATIC int
-attr_system_list(
-	bhv_vnode_t		*vp,
-	void			*data,
-	size_t			size,
-	ssize_t			*result)
-{
-	attrnames_t		*namesp;
-	int			i, error = 0;
-
-	for (i = 0; i < ATTR_SYSCOUNT; i++) {
-		namesp = attr_system_names[i];
-		if (!namesp->attr_exists || !namesp->attr_exists(vp))
-			continue;
-		error = attr_generic_listadd(&attr_system, namesp,
-						data, size, result);
-		if (error)
-			break;
-	}
-	return error;
-}
-
-int
-attr_generic_list(
-	bhv_vnode_t *vp, void *data, size_t size, int xflags, ssize_t *result)
-{
-	attrlist_cursor_kern_t	cursor = { 0 };
-	int			error;
-
-	error = xfs_attr_list(xfs_vtoi(vp), data, size, xflags, &cursor);
-	if (error > 0)
-		return -error;
-	*result = -error;
-	return attr_system_list(vp, data, size, result);
-}
-
-attrnames_t *
-attr_lookup_namespace(
-	char			*name,
-	struct attrnames	**names,
-	int			nnames)
-{
-	int			i;
-
-	for (i = 0; i < nnames; i++)
-		if (!strncmp(name, names[i]->attr_name, names[i]->attr_namelen))
-			return names[i];
-	return NULL;
-}
-
-/*
- * Some checks to prevent people abusing EAs to get over quota:
- * - Don't allow modifying user EAs on devices/symlinks;
- * - Don't allow modifying user EAs if sticky bit set;
- */
-STATIC int
-attr_user_capable(
-	bhv_vnode_t	*vp,
-	cred_t		*cred)
-{
-	struct inode	*inode = vn_to_inode(vp);
-
-	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
-		return -EPERM;
-	if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode) &&
-	    !capable(CAP_SYS_ADMIN))
-		return -EPERM;
-	if (S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX) &&
-	    (current_fsuid(cred) != inode->i_uid) && !capable(CAP_FOWNER))
-		return -EPERM;
-	return 0;
-}
-
-STATIC int
-attr_trusted_capable(
-	bhv_vnode_t	*vp,
-	cred_t		*cred)
-{
-	struct inode	*inode = vn_to_inode(vp);
-
-	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
-		return -EPERM;
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-	return 0;
-}
-
-STATIC int
-attr_system_set(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	attrnames_t	*namesp;
-	int		error;
-
-	if (xflags & ATTR_CREATE)
-		return -EINVAL;
-
-	namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
-	if (!namesp)
-		return -EOPNOTSUPP;
-	error = namesp->attr_set(vp, name, data, size, xflags);
-	if (!error)
-		error = vn_revalidate(vp);
-	return error;
-}
-
-STATIC int
-attr_system_get(
-	bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
-	attrnames_t	*namesp;
-
-	namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
-	if (!namesp)
-		return -EOPNOTSUPP;
-	return namesp->attr_get(vp, name, data, size, xflags);
-}
-
-STATIC int
-attr_system_remove(
-	bhv_vnode_t *vp, char *name, int xflags)
-{
-	attrnames_t	*namesp;
-
-	namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
-	if (!namesp)
-		return -EOPNOTSUPP;
-	return namesp->attr_remove(vp, name, xflags);
-}
-
-struct attrnames attr_system = {
-	.attr_name	= "system.",
-	.attr_namelen	= sizeof("system.") - 1,
-	.attr_flag	= ATTR_SYSTEM,
-	.attr_get	= attr_system_get,
-	.attr_set	= attr_system_set,
-	.attr_remove	= attr_system_remove,
-	.attr_capable	= (attrcapable_t)fs_noerr,
-};
-
-struct attrnames attr_trusted = {
-	.attr_name	= "trusted.",
-	.attr_namelen	= sizeof("trusted.") - 1,
-	.attr_flag	= ATTR_ROOT,
-	.attr_get	= attr_generic_get,
-	.attr_set	= attr_generic_set,
-	.attr_remove	= attr_generic_remove,
-	.attr_capable	= attr_trusted_capable,
-};
-
-struct attrnames attr_secure = {
-	.attr_name	= "security.",
-	.attr_namelen	= sizeof("security.") - 1,
-	.attr_flag	= ATTR_SECURE,
-	.attr_get	= attr_generic_get,
-	.attr_set	= attr_generic_set,
-	.attr_remove	= attr_generic_remove,
-	.attr_capable	= (attrcapable_t)fs_noerr,
-};
-
-struct attrnames attr_user = {
-	.attr_name	= "user.",
-	.attr_namelen	= sizeof("user.") - 1,
-	.attr_get	= attr_generic_get,
-	.attr_set	= attr_generic_set,
-	.attr_remove	= attr_generic_remove,
-	.attr_capable	= attr_user_capable,
-};
-
-struct attrnames *attr_namespaces[] =
-	{ &attr_system, &attr_trusted, &attr_secure, &attr_user };

fs/xfs/xfs_attr.h

@@ -18,9 +18,11 @@
 #ifndef __XFS_ATTR_H__
 #define	__XFS_ATTR_H__
 
+struct xfs_inode;
+struct xfs_da_args;
+struct xfs_attr_list_context;
+
 /*
- * xfs_attr.h
- *
  * Large attribute lists are structured around Btrees where all the data
  * elements are in the leaf nodes.  Attribute names are hashed into an int,
  * then that int is used as the index into the Btree.  Since the hashval
@@ -35,35 +37,6 @@
  * External interfaces
  *========================================================================*/
 
-struct cred;
-struct xfs_attr_list_context;
-
-typedef int (*attrset_t)(bhv_vnode_t *, char *, void *, size_t, int);
-typedef int (*attrget_t)(bhv_vnode_t *, char *, void *, size_t, int);
-typedef int (*attrremove_t)(bhv_vnode_t *, char *, int);
-typedef int (*attrexists_t)(bhv_vnode_t *);
-typedef int (*attrcapable_t)(bhv_vnode_t *, struct cred *);
-
-typedef struct attrnames {
-	char *		attr_name;
-	unsigned int	attr_namelen;
-	unsigned int	attr_flag;
-	attrget_t	attr_get;
-	attrset_t	attr_set;
-	attrremove_t	attr_remove;
-	attrexists_t	attr_exists;
-	attrcapable_t	attr_capable;
-} attrnames_t;
-
-#define ATTR_NAMECOUNT	4
-extern struct attrnames attr_user;
-extern struct attrnames attr_secure;
-extern struct attrnames attr_system;
-extern struct attrnames attr_trusted;
-extern struct attrnames *attr_namespaces[ATTR_NAMECOUNT];
-
-extern attrnames_t *attr_lookup_namespace(char *, attrnames_t **, int);
-extern int attr_generic_list(bhv_vnode_t *, void *, size_t, int, ssize_t *);
 
 #define ATTR_DONTFOLLOW	0x0001	/* -- unused, from IRIX -- */
 #define ATTR_ROOT	0x0002	/* use attrs in root (trusted) namespace */
@@ -71,16 +44,9 @@ extern int attr_generic_list(bhv_vnode_t *, void *, size_t, int, ssize_t *);
 #define ATTR_SECURE	0x0008	/* use attrs in security namespace */
 #define ATTR_CREATE	0x0010	/* pure create: fail if attr already exists */
 #define ATTR_REPLACE	0x0020	/* pure set: fail if attr does not exist */
-#define ATTR_SYSTEM	0x0100	/* use attrs in system (pseudo) namespace */
 
-#define ATTR_KERNACCESS	0x0400	/* [kernel] iaccess, inode held io-locked */
 #define ATTR_KERNOTIME	0x1000	/* [kernel] don't update inode timestamps */
 #define ATTR_KERNOVAL	0x2000	/* [kernel] get attr size only, not value */
-#define ATTR_KERNAMELS	0x4000	/* [kernel] list attr names (simple list) */
-
-#define ATTR_KERNORMALS	0x0800	/* [kernel] normal attr list: user+secure */
-#define ATTR_KERNROOTLS	0x8000	/* [kernel] include root in the attr list */
-#define ATTR_KERNFULLS	(ATTR_KERNORMALS|ATTR_KERNROOTLS)
 
 /*
  * The maximum size (into the kernel or returned from the kernel) of an
@@ -118,22 +84,6 @@ typedef struct attrlist_ent {	/* data from attr_list() */
 	((attrlist_ent_t *)			\
 	 &((char *)buffer)[ ((attrlist_t *)(buffer))->al_offset[index] ])
 
-/*
- * Multi-attribute operation vector.
- */
-typedef struct attr_multiop {
-	int	am_opcode;	/* operation to perform (ATTR_OP_GET, etc.) */
-	int	am_error;	/* [out arg] result of this sub-op (an errno) */
-	char	*am_attrname;	/* attribute name to work with */
-	char	*am_attrvalue;	/* [in/out arg] attribute value (raw bytes) */
-	int	am_length;	/* [in/out arg] length of value */
-	int	am_flags;	/* bitwise OR of attr API flags defined above */
-} attr_multiop_t;
-
-#define ATTR_OP_GET	1	/* return the indicated attr's value */
-#define ATTR_OP_SET	2	/* set/create the indicated attr/value pair */
-#define ATTR_OP_REMOVE	3	/* remove the indicated attr */
-
 /*
  * Kernel-internal version of the attrlist cursor.
  */
@@ -148,20 +98,40 @@ typedef struct attrlist_cursor_kern {
 
 
 /*========================================================================
- * Function prototypes for the kernel.
+ * Structure used to pass context around among the routines.
  *========================================================================*/
 
-struct xfs_inode;
-struct attrlist_cursor_kern;
-struct xfs_da_args;
+
+typedef int (*put_listent_func_t)(struct xfs_attr_list_context *, int,
+				      char *, int, int, char *);
+
+typedef struct xfs_attr_list_context {
+	struct xfs_inode		*dp;		/* inode */
+	struct attrlist_cursor_kern	*cursor;	/* position in list */
+	char				*alist;		/* output buffer */
+	int				seen_enough;	/* T/F: seen enough of list? */
+	ssize_t				count;		/* num used entries */
+	int				dupcnt;		/* count dup hashvals seen */
+	int				bufsize;	/* total buffer size */
+	int				firstu;		/* first used byte in buffer */
+	int				flags;		/* from VOP call */
+	int				resynch;	/* T/F: resynch with cursor */
+	int				put_value;	/* T/F: need value for listent */
+	put_listent_func_t		put_listent;	/* list output fmt function */
+	int				index;		/* index into output buffer */
+} xfs_attr_list_context_t;
+
+
+/*========================================================================
+ * Function prototypes for the kernel.
+ *========================================================================*/
 
 /*
  * Overall external interface routines.
  */
 int xfs_attr_inactive(struct xfs_inode *dp);
-
-int xfs_attr_shortform_getvalue(struct xfs_da_args *);
 int xfs_attr_fetch(struct xfs_inode *, struct xfs_name *, char *, int *, int);
 int xfs_attr_rmtval_get(struct xfs_da_args *args);
+int xfs_attr_list_int(struct xfs_attr_list_context *);
 
 #endif	/* __XFS_ATTR_H__ */

fs/xfs/xfs_attr_leaf.c

@@ -94,13 +94,6 @@ STATIC int xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index);
  * Namespace helper routines
  *========================================================================*/
 
-STATIC_INLINE attrnames_t *
-xfs_attr_flags_namesp(int flags)
-{
-	return ((flags & XFS_ATTR_SECURE) ? &attr_secure:
-		  ((flags & XFS_ATTR_ROOT) ? &attr_trusted : &attr_user));
-}
-
 /*
  * If namespace bits don't match return 0.
  * If all match then return 1.
@@ -111,25 +104,6 @@ xfs_attr_namesp_match(int arg_flags, int ondisk_flags)
 	return XFS_ATTR_NSP_ONDISK(ondisk_flags) == XFS_ATTR_NSP_ARGS_TO_ONDISK(arg_flags);
 }
 
-/*
- * If namespace bits don't match and we don't have an override for it
- * then return 0.
- * If all match or are overridable then return 1.
- */
-STATIC_INLINE int
-xfs_attr_namesp_match_overrides(int arg_flags, int ondisk_flags)
-{
-	if (((arg_flags & ATTR_SECURE) == 0) !=
-	    ((ondisk_flags & XFS_ATTR_SECURE) == 0) &&
-	    !(arg_flags & ATTR_KERNORMALS))
-		return 0;
-	if (((arg_flags & ATTR_ROOT) == 0) !=
-	    ((ondisk_flags & XFS_ATTR_ROOT) == 0) &&
-	    !(arg_flags & ATTR_KERNROOTLS))
-		return 0;
-	return 1;
-}
-
 
 /*========================================================================
  * External routines when attribute fork size < XFS_LITINO(mp).
@@ -369,9 +343,10 @@ xfs_attr_shortform_remove(xfs_da_args_t *args)
 	 * Fix up the start offset of the attribute fork
 	 */
 	totsize -= size;
-	if (totsize == sizeof(xfs_attr_sf_hdr_t) && !args->addname &&
-	    (mp->m_flags & XFS_MOUNT_ATTR2) && 
-	    (dp->i_d.di_format != XFS_DINODE_FMT_BTREE)) {
+	if (totsize == sizeof(xfs_attr_sf_hdr_t) &&
+				!(args->op_flags & XFS_DA_OP_ADDNAME) &&
+				(mp->m_flags & XFS_MOUNT_ATTR2) &&
+				(dp->i_d.di_format != XFS_DINODE_FMT_BTREE)) {
 		/*
 		 * Last attribute now removed, revert to original
 		 * inode format making all literal area available
@@ -389,9 +364,10 @@ xfs_attr_shortform_remove(xfs_da_args_t *args)
 		xfs_idata_realloc(dp, -size, XFS_ATTR_FORK);
 		dp->i_d.di_forkoff = xfs_attr_shortform_bytesfit(dp, totsize);
 		ASSERT(dp->i_d.di_forkoff);
-		ASSERT(totsize > sizeof(xfs_attr_sf_hdr_t) || args->addname ||
-			!(mp->m_flags & XFS_MOUNT_ATTR2) ||
-			dp->i_d.di_format == XFS_DINODE_FMT_BTREE);
+		ASSERT(totsize > sizeof(xfs_attr_sf_hdr_t) ||
+				(args->op_flags & XFS_DA_OP_ADDNAME) ||
+				!(mp->m_flags & XFS_MOUNT_ATTR2) ||
+				dp->i_d.di_format == XFS_DINODE_FMT_BTREE);
 		dp->i_afp->if_ext_max =
 			XFS_IFORK_ASIZE(dp) / (uint)sizeof(xfs_bmbt_rec_t);
 		dp->i_df.if_ext_max =
@@ -531,7 +507,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
 	nargs.total = args->total;
 	nargs.whichfork = XFS_ATTR_FORK;
 	nargs.trans = args->trans;
-	nargs.oknoent = 1;
+	nargs.op_flags = XFS_DA_OP_OKNOENT;
 
 	sfe = &sf->list[0];
 	for (i = 0; i < sf->hdr.count; i++) {
@@ -555,7 +531,7 @@ xfs_attr_shortform_to_leaf(xfs_da_args_t *args)
 out:
 	if(bp)
 		xfs_da_buf_done(bp);
-	kmem_free(tmpbuffer, size);
+	kmem_free(tmpbuffer);
 	return(error);
 }
 
@@ -624,15 +600,8 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 	    (XFS_ISRESET_CURSOR(cursor) &&
              (dp->i_afp->if_bytes + sf->hdr.count * 16) < context->bufsize)) {
 		for (i = 0, sfe = &sf->list[0]; i < sf->hdr.count; i++) {
-			attrnames_t	*namesp;
-
-			if (!xfs_attr_namesp_match_overrides(context->flags, sfe->flags)) {
-				sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
-				continue;
-			}
-			namesp = xfs_attr_flags_namesp(sfe->flags);
 			error = context->put_listent(context,
-					   namesp,
+					   sfe->flags,
 					   (char *)sfe->nameval,
 					   (int)sfe->namelen,
 					   (int)sfe->valuelen,
@@ -676,13 +645,10 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 					     XFS_ERRLEVEL_LOW,
 					     context->dp->i_mount, sfe);
 			xfs_attr_trace_l_c("sf corrupted", context);
-			kmem_free(sbuf, sbsize);
+			kmem_free(sbuf);
 			return XFS_ERROR(EFSCORRUPTED);
 		}
-		if (!xfs_attr_namesp_match_overrides(context->flags, sfe->flags)) {
-			sfe = XFS_ATTR_SF_NEXTENTRY(sfe);
-			continue;
-		}
+
 		sbp->entno = i;
 		sbp->hash = xfs_da_hashname((char *)sfe->nameval, sfe->namelen);
 		sbp->name = (char *)sfe->nameval;
@@ -717,7 +683,7 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 		}
 	}
 	if (i == nsbuf) {
-		kmem_free(sbuf, sbsize);
+		kmem_free(sbuf);
 		xfs_attr_trace_l_c("blk end", context);
 		return(0);
 	}
@@ -726,16 +692,12 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 	 * Loop putting entries into the user buffer.
 	 */
 	for ( ; i < nsbuf; i++, sbp++) {
-		attrnames_t	*namesp;
-
-		namesp = xfs_attr_flags_namesp(sbp->flags);
-
 		if (cursor->hashval != sbp->hash) {
 			cursor->hashval = sbp->hash;
 			cursor->offset = 0;
 		}
 		error = context->put_listent(context,
-					namesp,
+					sbp->flags,
 					sbp->name,
 					sbp->namelen,
 					sbp->valuelen,
@@ -747,7 +709,7 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 		cursor->offset++;
 	}
 
-	kmem_free(sbuf, sbsize);
+	kmem_free(sbuf);
 	xfs_attr_trace_l_c("sf E-O-F", context);
 	return(0);
 }
@@ -853,7 +815,7 @@ xfs_attr_leaf_to_shortform(xfs_dabuf_t *bp, xfs_da_args_t *args, int forkoff)
 	nargs.total = args->total;
 	nargs.whichfork = XFS_ATTR_FORK;
 	nargs.trans = args->trans;
-	nargs.oknoent = 1;
+	nargs.op_flags = XFS_DA_OP_OKNOENT;
 	entry = &leaf->entries[0];
 	for (i = 0; i < be16_to_cpu(leaf->hdr.count); entry++, i++) {
 		if (entry->flags & XFS_ATTR_INCOMPLETE)
@@ -873,7 +835,7 @@ xfs_attr_leaf_to_shortform(xfs_dabuf_t *bp, xfs_da_args_t *args, int forkoff)
 	error = 0;
 
 out:
-	kmem_free(tmpbuffer, XFS_LBSIZE(dp->i_mount));
+	kmem_free(tmpbuffer);
 	return(error);
 }
 
@@ -1155,7 +1117,7 @@ xfs_attr_leaf_add_work(xfs_dabuf_t *bp, xfs_da_args_t *args, int mapindex)
 	entry->hashval = cpu_to_be32(args->hashval);
 	entry->flags = tmp ? XFS_ATTR_LOCAL : 0;
 	entry->flags |= XFS_ATTR_NSP_ARGS_TO_ONDISK(args->flags);
-	if (args->rename) {
+	if (args->op_flags & XFS_DA_OP_RENAME) {
 		entry->flags |= XFS_ATTR_INCOMPLETE;
 		if ((args->blkno2 == args->blkno) &&
 		    (args->index2 <= args->index)) {
@@ -1271,7 +1233,7 @@ xfs_attr_leaf_compact(xfs_trans_t *trans, xfs_dabuf_t *bp)
 				be16_to_cpu(hdr_s->count), mp);
 	xfs_da_log_buf(trans, bp, 0, XFS_LBSIZE(mp) - 1);
 
-	kmem_free(tmpbuffer, XFS_LBSIZE(mp));
+	kmem_free(tmpbuffer);
 }
 
 /*
@@ -1921,7 +1883,7 @@ xfs_attr_leaf_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
 				be16_to_cpu(drop_hdr->count), mp);
 		}
 		memcpy((char *)save_leaf, (char *)tmp_leaf, state->blocksize);
-		kmem_free(tmpbuffer, state->blocksize);
+		kmem_free(tmpbuffer);
 	}
 
 	xfs_da_log_buf(state->args->trans, save_blk->bp, 0,
@@ -2400,8 +2362,6 @@ xfs_attr_leaf_list_int(xfs_dabuf_t *bp, xfs_attr_list_context_t *context)
 	 */
 	retval = 0;
 	for (  ; (i < be16_to_cpu(leaf->hdr.count)); entry++, i++) {
-		attrnames_t *namesp;
-
 		if (be32_to_cpu(entry->hashval) != cursor->hashval) {
 			cursor->hashval = be32_to_cpu(entry->hashval);
 			cursor->offset = 0;
@@ -2409,17 +2369,13 @@ xfs_attr_leaf_list_int(xfs_dabuf_t *bp, xfs_attr_list_context_t *context)
 
 		if (entry->flags & XFS_ATTR_INCOMPLETE)
 			continue;		/* skip incomplete entries */
-		if (!xfs_attr_namesp_match_overrides(context->flags, entry->flags))
-			continue;
-
-		namesp = xfs_attr_flags_namesp(entry->flags);
 
 		if (entry->flags & XFS_ATTR_LOCAL) {
 			xfs_attr_leaf_name_local_t *name_loc =
 				XFS_ATTR_LEAF_NAME_LOCAL(leaf, i);
 
 			retval = context->put_listent(context,
-						namesp,
+						entry->flags,
 						(char *)name_loc->nameval,
 						(int)name_loc->namelen,
 						be16_to_cpu(name_loc->valuelen),
@@ -2446,16 +2402,15 @@ xfs_attr_leaf_list_int(xfs_dabuf_t *bp, xfs_attr_list_context_t *context)
 				if (retval)
 					return retval;
 				retval = context->put_listent(context,
-						namesp,
+						entry->flags,
 						(char *)name_rmt->name,
 						(int)name_rmt->namelen,
 						valuelen,
 						(char*)args.value);
-				kmem_free(args.value, valuelen);
-			}
-			else {
+				kmem_free(args.value);
+			} else {
 				retval = context->put_listent(context,
-						namesp,
+						entry->flags,
 						(char *)name_rmt->name,
 						(int)name_rmt->namelen,
 						valuelen,
@@ -2954,7 +2909,7 @@ xfs_attr_leaf_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp)
 			error = tmp;	/* save only the 1st errno */
 	}
 
-	kmem_free((xfs_caddr_t)list, size);
+	kmem_free((xfs_caddr_t)list);
 	return(error);
 }
 

fs/xfs/xfs_attr_leaf.h

@@ -30,7 +30,7 @@
 
 struct attrlist;
 struct attrlist_cursor_kern;
-struct attrnames;
+struct xfs_attr_list_context;
 struct xfs_dabuf;
 struct xfs_da_args;
 struct xfs_da_state;
@@ -204,33 +204,6 @@ static inline int xfs_attr_leaf_entsize_local_max(int bsize)
 	return (((bsize) >> 1) + ((bsize) >> 2));
 }
 
-
-/*========================================================================
- * Structure used to pass context around among the routines.
- *========================================================================*/
-
-
-struct xfs_attr_list_context;
-
-typedef int (*put_listent_func_t)(struct xfs_attr_list_context *, struct attrnames *,
-				      char *, int, int, char *);
-
-typedef struct xfs_attr_list_context {
-	struct xfs_inode		*dp;		/* inode */
-	struct attrlist_cursor_kern	*cursor;	/* position in list */
-	struct attrlist			*alist;		/* output buffer */
-	int				seen_enough;	/* T/F: seen enough of list? */
-	int				count;		/* num used entries */
-	int				dupcnt;		/* count dup hashvals seen */
-	int				bufsize;	/* total buffer size */
-	int				firstu;		/* first used byte in buffer */
-	int				flags;		/* from VOP call */
-	int				resynch;	/* T/F: resynch with cursor */
-	int				put_value;	/* T/F: need value for listent */
-	put_listent_func_t		put_listent;	/* list output fmt function */
-	int				index;		/* index into output buffer */
-} xfs_attr_list_context_t;
-
 /*
  * Used to keep a list of "remote value" extents when unlinking an inode.
  */

fs/xfs/xfs_attr_sf.h

@@ -97,13 +97,9 @@ void xfs_attr_trace_l_cb(char *where, struct xfs_attr_list_context *context,
 void xfs_attr_trace_l_cl(char *where, struct xfs_attr_list_context *context,
 			      struct xfs_attr_leafblock *leaf);
 void xfs_attr_trace_enter(int type, char *where,
-			     __psunsigned_t a2, __psunsigned_t a3,
-			     __psunsigned_t a4, __psunsigned_t a5,
-			     __psunsigned_t a6, __psunsigned_t a7,
-			     __psunsigned_t a8, __psunsigned_t a9,
-			     __psunsigned_t a10, __psunsigned_t a11,
-			     __psunsigned_t a12, __psunsigned_t a13,
-			     __psunsigned_t a14, __psunsigned_t a15);
+			     struct xfs_attr_list_context *context,
+			     __psunsigned_t a13, __psunsigned_t a14,
+			     __psunsigned_t a15);
 #else
 #define	xfs_attr_trace_l_c(w,c)
 #define	xfs_attr_trace_l_cn(w,c,n)

fs/xfs/xfs_bmap.c

@@ -428,7 +428,8 @@ xfs_bmap_add_attrfork_btree(
 		cur->bc_private.b.firstblock = *firstblock;
 		if ((error = xfs_bmbt_lookup_ge(cur, 0, 0, 0, &stat)))
 			goto error0;
-		ASSERT(stat == 1);	/* must be at least one entry */
+		/* must be at least one entry */
+		XFS_WANT_CORRUPTED_GOTO(stat == 1, error0);
 		if ((error = xfs_bmbt_newroot(cur, flags, &stat)))
 			goto error0;
 		if (stat == 0) {
@@ -816,13 +817,13 @@ xfs_bmap_add_extent_delay_real(
 					RIGHT.br_startblock,
 					RIGHT.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_delete(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
 					LEFT.br_startblock,
 					LEFT.br_blockcount +
@@ -860,7 +861,7 @@ xfs_bmap_add_extent_delay_real(
 					LEFT.br_startblock, LEFT.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
 					LEFT.br_startblock,
 					LEFT.br_blockcount +
@@ -895,7 +896,7 @@ xfs_bmap_add_extent_delay_real(
 					RIGHT.br_startblock,
 					RIGHT.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
 					new->br_startblock,
 					PREV.br_blockcount +
@@ -928,11 +929,11 @@ xfs_bmap_add_extent_delay_real(
 					new->br_startblock, new->br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 0);
+			XFS_WANT_CORRUPTED_GOTO(i == 0, done);
 			cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		*dnew = 0;
 		/* DELTA: The in-core extent described by new changed type. */
@@ -963,7 +964,7 @@ xfs_bmap_add_extent_delay_real(
 					LEFT.br_startblock, LEFT.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
 					LEFT.br_startblock,
 					LEFT.br_blockcount +
@@ -1004,11 +1005,11 @@ xfs_bmap_add_extent_delay_real(
 					new->br_startblock, new->br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 0);
+			XFS_WANT_CORRUPTED_GOTO(i == 0, done);
 			cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
 		    ip->i_d.di_nextents > ip->i_df.if_ext_max) {
@@ -1054,7 +1055,7 @@ xfs_bmap_add_extent_delay_real(
 					RIGHT.br_startblock,
 					RIGHT.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, new->br_startoff,
 					new->br_startblock,
 					new->br_blockcount +
@@ -1094,11 +1095,11 @@ xfs_bmap_add_extent_delay_real(
 					new->br_startblock, new->br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 0);
+			XFS_WANT_CORRUPTED_GOTO(i == 0, done);
 			cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
 		    ip->i_d.di_nextents > ip->i_df.if_ext_max) {
@@ -1149,11 +1150,11 @@ xfs_bmap_add_extent_delay_real(
 					new->br_startblock, new->br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 0);
+			XFS_WANT_CORRUPTED_GOTO(i == 0, done);
 			cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS &&
 		    ip->i_d.di_nextents > ip->i_df.if_ext_max) {
@@ -1377,19 +1378,19 @@ xfs_bmap_add_extent_unwritten_real(
 					RIGHT.br_startblock,
 					RIGHT.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_delete(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_delete(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
 				LEFT.br_startblock,
 				LEFT.br_blockcount + PREV.br_blockcount +
@@ -1426,13 +1427,13 @@ xfs_bmap_add_extent_unwritten_real(
 					PREV.br_startblock, PREV.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_delete(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
 				LEFT.br_startblock,
 				LEFT.br_blockcount + PREV.br_blockcount,
@@ -1469,13 +1470,13 @@ xfs_bmap_add_extent_unwritten_real(
 					RIGHT.br_startblock,
 					RIGHT.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_delete(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, new->br_startoff,
 				new->br_startblock,
 				new->br_blockcount + RIGHT.br_blockcount,
@@ -1508,7 +1509,7 @@ xfs_bmap_add_extent_unwritten_real(
 					new->br_startblock, new->br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, new->br_startoff,
 				new->br_startblock, new->br_blockcount,
 				newext)))
@@ -1549,7 +1550,7 @@ xfs_bmap_add_extent_unwritten_real(
 					PREV.br_startblock, PREV.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur,
 				PREV.br_startoff + new->br_blockcount,
 				PREV.br_startblock + new->br_blockcount,
@@ -1596,7 +1597,7 @@ xfs_bmap_add_extent_unwritten_real(
 					PREV.br_startblock, PREV.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur,
 				PREV.br_startoff + new->br_blockcount,
 				PREV.br_startblock + new->br_blockcount,
@@ -1606,7 +1607,7 @@ xfs_bmap_add_extent_unwritten_real(
 			cur->bc_rec.b = *new;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		/* DELTA: One in-core extent is split in two. */
 		temp = PREV.br_startoff;
@@ -1640,7 +1641,7 @@ xfs_bmap_add_extent_unwritten_real(
 					PREV.br_startblock,
 					PREV.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
 				PREV.br_startblock,
 				PREV.br_blockcount - new->br_blockcount,
@@ -1682,7 +1683,7 @@ xfs_bmap_add_extent_unwritten_real(
 					PREV.br_startblock, PREV.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
 				PREV.br_startblock,
 				PREV.br_blockcount - new->br_blockcount,
@@ -1692,11 +1693,11 @@ xfs_bmap_add_extent_unwritten_real(
 					new->br_startblock, new->br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 0);
+			XFS_WANT_CORRUPTED_GOTO(i == 0, done);
 			cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		/* DELTA: One in-core extent is split in two. */
 		temp = PREV.br_startoff;
@@ -1732,27 +1733,34 @@ xfs_bmap_add_extent_unwritten_real(
 					PREV.br_startblock, PREV.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			/* new right extent - oldext */
 			if ((error = xfs_bmbt_update(cur, r[1].br_startoff,
 				r[1].br_startblock, r[1].br_blockcount,
 				r[1].br_state)))
 				goto done;
 			/* new left extent - oldext */
-			PREV.br_blockcount =
-				new->br_startoff - PREV.br_startoff;
 			cur->bc_rec.b = PREV;
+			cur->bc_rec.b.br_blockcount =
+				new->br_startoff - PREV.br_startoff;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
-			if ((error = xfs_bmbt_increment(cur, 0, &i)))
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
+			/*
+			 * Reset the cursor to the position of the new extent
+			 * we are about to insert as we can't trust it after
+			 * the previous insert.
+			 */
+			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
+					new->br_startblock, new->br_blockcount,
+					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 0, done);
 			/* new middle extent - newext */
-			cur->bc_rec.b = *new;
+			cur->bc_rec.b.br_state = new->br_state;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		/* DELTA: One in-core extent is split in three. */
 		temp = PREV.br_startoff;
@@ -2097,13 +2105,13 @@ xfs_bmap_add_extent_hole_real(
 					right.br_startblock,
 					right.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_delete(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_decrement(cur, 0, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, left.br_startoff,
 					left.br_startblock,
 					left.br_blockcount +
@@ -2139,7 +2147,7 @@ xfs_bmap_add_extent_hole_real(
 					left.br_startblock,
 					left.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, left.br_startoff,
 					left.br_startblock,
 					left.br_blockcount +
@@ -2174,7 +2182,7 @@ xfs_bmap_add_extent_hole_real(
 					right.br_startblock,
 					right.br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			if ((error = xfs_bmbt_update(cur, new->br_startoff,
 					new->br_startblock,
 					new->br_blockcount +
@@ -2208,11 +2216,11 @@ xfs_bmap_add_extent_hole_real(
 					new->br_startblock,
 					new->br_blockcount, &i)))
 				goto done;
-			ASSERT(i == 0);
+			XFS_WANT_CORRUPTED_GOTO(i == 0, done);
 			cur->bc_rec.b.br_state = new->br_state;
 			if ((error = xfs_bmbt_insert(cur, &i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		/* DELTA: A new extent was added in a hole. */
 		temp = new->br_startoff;
@@ -3131,7 +3139,7 @@ xfs_bmap_del_extent(
 					got.br_startblock, got.br_blockcount,
 					&i)))
 				goto done;
-			ASSERT(i == 1);
+			XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		}
 		da_old = da_new = 0;
 	} else {
@@ -3164,7 +3172,7 @@ xfs_bmap_del_extent(
 		}
 		if ((error = xfs_bmbt_delete(cur, &i)))
 			goto done;
-		ASSERT(i == 1);
+		XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 		break;
 
 	case 2:
@@ -3268,7 +3276,7 @@ xfs_bmap_del_extent(
 							got.br_startblock,
 							temp, &i)))
 						goto done;
-					ASSERT(i == 1);
+					XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 					/*
 					 * Update the btree record back
 					 * to the original value.
@@ -3289,7 +3297,7 @@ xfs_bmap_del_extent(
 					error = XFS_ERROR(ENOSPC);
 					goto done;
 				}
-				ASSERT(i == 1);
+				XFS_WANT_CORRUPTED_GOTO(i == 1, done);
 			} else
 				flags |= XFS_ILOG_FEXT(whichfork);
 			XFS_IFORK_NEXT_SET(ip, whichfork,
@@ -5970,7 +5978,7 @@ unlock_and_return:
 	xfs_iunlock_map_shared(ip, lock);
 	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 
-	kmem_free(map, subnex * sizeof(*map));
+	kmem_free(map);
 
 	return error;
 }

fs/xfs/xfs_bmap.h

@@ -54,12 +54,23 @@ typedef struct xfs_bmap_free_item
 
 /*
  * Header for free extent list.
+ *
+ * xbf_low is used by the allocator to activate the lowspace algorithm -
+ * when free space is running low the extent allocator may choose to
+ * allocate an extent from an AG without leaving sufficient space for
+ * a btree split when inserting the new extent.  In this case the allocator
+ * will enable the lowspace algorithm which is supposed to allow further
+ * allocations (such as btree splits and newroots) to allocate from
+ * sequential AGs.  In order to avoid locking AGs out of order the lowspace
+ * algorithm will start searching for free space from AG 0.  If the correct
+ * transaction reservations have been made then this algorithm will eventually
+ * find all the space it needs.
  */
 typedef	struct xfs_bmap_free
 {
 	xfs_bmap_free_item_t	*xbf_first;	/* list of to-be-free extents */
 	int			xbf_count;	/* count of items on list */
-	int			xbf_low;	/* kludge: alloc in low mode */
+	int			xbf_low;	/* alloc in low mode */
 } xfs_bmap_free_t;
 
 #define	XFS_BMAP_MAX_NMAP	4

fs/xfs/xfs_bmap_btree.c

@@ -1493,12 +1493,27 @@ xfs_bmbt_split(
 	left = XFS_BUF_TO_BMBT_BLOCK(lbp);
 	args.fsbno = cur->bc_private.b.firstblock;
 	args.firstblock = args.fsbno;
+	args.minleft = 0;
 	if (args.fsbno == NULLFSBLOCK) {
 		args.fsbno = lbno;
 		args.type = XFS_ALLOCTYPE_START_BNO;
-	} else
+		/*
+		 * Make sure there is sufficient room left in the AG to
+		 * complete a full tree split for an extent insert.  If
+		 * we are converting the middle part of an extent then
+		 * we may need space for two tree splits.
+		 *
+		 * We are relying on the caller to make the correct block
+		 * reservation for this operation to succeed.  If the
+		 * reservation amount is insufficient then we may fail a
+		 * block allocation here and corrupt the filesystem.
+		 */
+		args.minleft = xfs_trans_get_block_res(args.tp);
+	} else if (cur->bc_private.b.flist->xbf_low)
+		args.type = XFS_ALLOCTYPE_START_BNO;
+	else
 		args.type = XFS_ALLOCTYPE_NEAR_BNO;
-	args.mod = args.minleft = args.alignment = args.total = args.isfl =
+	args.mod = args.alignment = args.total = args.isfl =
 		args.userdata = args.minalignslop = 0;
 	args.minlen = args.maxlen = args.prod = 1;
 	args.wasdel = cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL;
@@ -1510,6 +1525,21 @@ xfs_bmbt_split(
 		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
 		return error;
 	}
+	if (args.fsbno == NULLFSBLOCK && args.minleft) {
+		/*
+		 * Could not find an AG with enough free space to satisfy
+		 * a full btree split.  Try again without minleft and if
+		 * successful activate the lowspace algorithm.
+		 */
+		args.fsbno = 0;
+		args.type = XFS_ALLOCTYPE_FIRST_AG;
+		args.minleft = 0;
+		if ((error = xfs_alloc_vextent(&args))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		cur->bc_private.b.flist->xbf_low = 1;
+	}
 	if (args.fsbno == NULLFSBLOCK) {
 		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
 		*stat = 0;
@@ -2029,22 +2059,8 @@ xfs_bmbt_increment(
  * Insert the current record at the point referenced by cur.
  *
  * A multi-level split of the tree on insert will invalidate the original
- * cursor. It appears, however, that some callers assume that the cursor is
- * always valid. Hence if we do a multi-level split we need to revalidate the
- * cursor.
- *
- * When a split occurs, we will see a new cursor returned. Use that as a
- * trigger to determine if we need to revalidate the original cursor. If we get
- * a split, then use the original irec to lookup up the path of the record we
- * just inserted.
- *
- * Note that the fact that the btree root is in the inode means that we can
- * have the level of the tree change without a "split" occurring at the root
- * level. What happens is that the root is migrated to an allocated block and
- * the inode root is pointed to it. This means a single split can change the
- * level of the tree (level 2 -> level 3) and invalidate the old cursor. Hence
- * the level change should be accounted as a split so as to correctly trigger a
- * revalidation of the old cursor.
+ * cursor.  All callers of this function should assume that the cursor is
+ * no longer valid and revalidate it.
  */
 int					/* error */
 xfs_bmbt_insert(
@@ -2057,14 +2073,11 @@ xfs_bmbt_insert(
 	xfs_fsblock_t	nbno;
 	xfs_btree_cur_t	*ncur;
 	xfs_bmbt_rec_t	nrec;
-	xfs_bmbt_irec_t	oirec;		/* original irec */
 	xfs_btree_cur_t	*pcur;
-	int		splits = 0;
 
 	XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
 	level = 0;
 	nbno = NULLFSBLOCK;
-	oirec = cur->bc_rec.b;
 	xfs_bmbt_disk_set_all(&nrec, &cur->bc_rec.b);
 	ncur = NULL;
 	pcur = cur;
@@ -2073,13 +2086,11 @@ xfs_bmbt_insert(
 				&i))) {
 			if (pcur != cur)
 				xfs_btree_del_cursor(pcur, XFS_BTREE_ERROR);
-			goto error0;
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
 		}
 		XFS_WANT_CORRUPTED_GOTO(i == 1, error0);
 		if (pcur != cur && (ncur || nbno == NULLFSBLOCK)) {
-			/* allocating a new root is effectively a split */
-			if (cur->bc_nlevels != pcur->bc_nlevels)
-				splits++;
 			cur->bc_nlevels = pcur->bc_nlevels;
 			cur->bc_private.b.allocated +=
 				pcur->bc_private.b.allocated;
@@ -2093,21 +2104,10 @@ xfs_bmbt_insert(
 			xfs_btree_del_cursor(pcur, XFS_BTREE_NOERROR);
 		}
 		if (ncur) {
-			splits++;
 			pcur = ncur;
 			ncur = NULL;
 		}
 	} while (nbno != NULLFSBLOCK);
-
-	if (splits > 1) {
-		/* revalidate the old cursor as we had a multi-level split */
-		error = xfs_bmbt_lookup_eq(cur, oirec.br_startoff,
-				oirec.br_startblock, oirec.br_blockcount, &i);
-		if (error)
-			goto error0;
-		ASSERT(i == 1);
-	}
-
 	XFS_BMBT_TRACE_CURSOR(cur, EXIT);
 	*stat = i;
 	return 0;
@@ -2254,7 +2254,9 @@ xfs_bmbt_newroot(
 #endif
 		args.fsbno = be64_to_cpu(*pp);
 		args.type = XFS_ALLOCTYPE_START_BNO;
-	} else
+	} else if (cur->bc_private.b.flist->xbf_low)
+		args.type = XFS_ALLOCTYPE_START_BNO;
+	else
 		args.type = XFS_ALLOCTYPE_NEAR_BNO;
 	if ((error = xfs_alloc_vextent(&args))) {
 		XFS_BMBT_TRACE_CURSOR(cur, ERROR);

fs/xfs/xfs_buf_item.c

@@ -889,9 +889,9 @@ xfs_buf_item_relse(
 	}
 
 #ifdef XFS_TRANS_DEBUG
-	kmem_free(bip->bli_orig, XFS_BUF_COUNT(bp));
+	kmem_free(bip->bli_orig);
 	bip->bli_orig = NULL;
-	kmem_free(bip->bli_logged, XFS_BUF_COUNT(bp) / NBBY);
+	kmem_free(bip->bli_logged);
 	bip->bli_logged = NULL;
 #endif /* XFS_TRANS_DEBUG */
 
@@ -1138,9 +1138,9 @@ xfs_buf_iodone(
 	xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip);
 
 #ifdef XFS_TRANS_DEBUG
-	kmem_free(bip->bli_orig, XFS_BUF_COUNT(bp));
+	kmem_free(bip->bli_orig);
 	bip->bli_orig = NULL;
-	kmem_free(bip->bli_logged, XFS_BUF_COUNT(bp) / NBBY);
+	kmem_free(bip->bli_logged);
 	bip->bli_logged = NULL;
 #endif /* XFS_TRANS_DEBUG */
 

fs/xfs/xfs_clnt.h

@@ -78,6 +78,7 @@ struct xfs_mount_args {
 #define XFSMNT_IOSIZE		0x00002000	/* optimize for I/O size */
 #define XFSMNT_OSYNCISOSYNC	0x00004000	/* o_sync is REALLY o_sync */
 						/* (osyncisdsync is default) */
+#define XFSMNT_NOATTR2		0x00008000	/* turn off ATTR2 EA format */
 #define XFSMNT_32BITINODES	0x00200000	/* restrict inodes to 32
 						 * bits of address space */
 #define XFSMNT_GQUOTA		0x00400000	/* group quota accounting */

fs/xfs/xfs_da_btree.c

@@ -1431,7 +1431,7 @@ xfs_da_path_shift(xfs_da_state_t *state, xfs_da_state_path_t *path,
 	}
 	if (level < 0) {
 		*result = XFS_ERROR(ENOENT);	/* we're out of our tree */
-		ASSERT(args->oknoent);
+		ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
 		return(0);
 	}
 
@@ -1530,6 +1530,28 @@ xfs_da_hashname(const uchar_t *name, int namelen)
 	}
 }
 
+enum xfs_dacmp
+xfs_da_compname(
+	struct xfs_da_args *args,
+	const char 	*name,
+	int 		len)
+{
+	return (args->namelen == len && memcmp(args->name, name, len) == 0) ?
+					XFS_CMP_EXACT : XFS_CMP_DIFFERENT;
+}
+
+static xfs_dahash_t
+xfs_default_hashname(
+	struct xfs_name	*name)
+{
+	return xfs_da_hashname(name->name, name->len);
+}
+
+const struct xfs_nameops xfs_default_nameops = {
+	.hashname	= xfs_default_hashname,
+	.compname	= xfs_da_compname
+};
+
 /*
  * Add a block to the btree ahead of the file.
  * Return the new block number to the caller.
@@ -1598,7 +1620,7 @@ xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno)
 					args->firstblock, args->total,
 					&mapp[mapi], &nmap, args->flist,
 					NULL))) {
-				kmem_free(mapp, sizeof(*mapp) * count);
+				kmem_free(mapp);
 				return error;
 			}
 			if (nmap < 1)
@@ -1620,11 +1642,11 @@ xfs_da_grow_inode(xfs_da_args_t *args, xfs_dablk_t *new_blkno)
 	    mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount !=
 	    bno + count) {
 		if (mapp != &map)
-			kmem_free(mapp, sizeof(*mapp) * count);
+			kmem_free(mapp);
 		return XFS_ERROR(ENOSPC);
 	}
 	if (mapp != &map)
-		kmem_free(mapp, sizeof(*mapp) * count);
+		kmem_free(mapp);
 	*new_blkno = (xfs_dablk_t)bno;
 	return 0;
 }
@@ -2090,10 +2112,10 @@ xfs_da_do_buf(
 		}
 	}
 	if (bplist) {
-		kmem_free(bplist, sizeof(*bplist) * nmap);
+		kmem_free(bplist);
 	}
 	if (mapp != &map) {
-		kmem_free(mapp, sizeof(*mapp) * nfsb);
+		kmem_free(mapp);
 	}
 	if (bpp)
 		*bpp = rbp;
@@ -2102,11 +2124,11 @@ exit1:
 	if (bplist) {
 		for (i = 0; i < nbplist; i++)
 			xfs_trans_brelse(trans, bplist[i]);
-		kmem_free(bplist, sizeof(*bplist) * nmap);
+		kmem_free(bplist);
 	}
 exit0:
 	if (mapp != &map)
-		kmem_free(mapp, sizeof(*mapp) * nfsb);
+		kmem_free(mapp);
 	if (bpp)
 		*bpp = NULL;
 	return error;
@@ -2218,7 +2240,7 @@ xfs_da_state_free(xfs_da_state_t *state)
 
 #ifdef XFS_DABUF_DEBUG
 xfs_dabuf_t	*xfs_dabuf_global_list;
-spinlock_t	xfs_dabuf_global_lock;
+static DEFINE_SPINLOCK(xfs_dabuf_global_lock);
 #endif
 
 /*
@@ -2315,7 +2337,7 @@ xfs_da_buf_done(xfs_dabuf_t *dabuf)
 	if (dabuf->dirty)
 		xfs_da_buf_clean(dabuf);
 	if (dabuf->nbuf > 1)
-		kmem_free(dabuf->data, BBTOB(dabuf->bbcount));
+		kmem_free(dabuf->data);
 #ifdef XFS_DABUF_DEBUG
 	{
 		spin_lock(&xfs_dabuf_global_lock);
@@ -2332,7 +2354,7 @@ xfs_da_buf_done(xfs_dabuf_t *dabuf)
 	if (dabuf->nbuf == 1)
 		kmem_zone_free(xfs_dabuf_zone, dabuf);
 	else
-		kmem_free(dabuf, XFS_DA_BUF_SIZE(dabuf->nbuf));
+		kmem_free(dabuf);
 }
 
 /*
@@ -2403,7 +2425,7 @@ xfs_da_brelse(xfs_trans_t *tp, xfs_dabuf_t *dabuf)
 	for (i = 0; i < nbuf; i++)
 		xfs_trans_brelse(tp, bplist[i]);
 	if (bplist != &bp)
-		kmem_free(bplist, nbuf * sizeof(*bplist));
+		kmem_free(bplist);
 }
 
 /*
@@ -2429,7 +2451,7 @@ xfs_da_binval(xfs_trans_t *tp, xfs_dabuf_t *dabuf)
 	for (i = 0; i < nbuf; i++)
 		xfs_trans_binval(tp, bplist[i]);
 	if (bplist != &bp)
-		kmem_free(bplist, nbuf * sizeof(*bplist));
+		kmem_free(bplist);
 }
 
 /*

fs/xfs/xfs_da_btree.h

@@ -98,6 +98,15 @@ typedef struct xfs_da_node_entry xfs_da_node_entry_t;
  * Btree searching and modification structure definitions.
  *========================================================================*/
 
+/*
+ * Search comparison results
+ */
+enum xfs_dacmp {
+	XFS_CMP_DIFFERENT,	/* names are completely different */
+	XFS_CMP_EXACT,		/* names are exactly the same */
+	XFS_CMP_CASE		/* names are same but differ in case */
+};
+
 /*
  * Structure to ease passing around component names.
  */
@@ -123,12 +132,19 @@ typedef struct xfs_da_args {
 	int		index2;		/* index of 2nd attr in blk */
 	xfs_dablk_t	rmtblkno2;	/* remote attr value starting blkno */
 	int		rmtblkcnt2;	/* remote attr value block count */
-	unsigned char	justcheck;	/* T/F: check for ok with no space */
-	unsigned char	rename;		/* T/F: this is an atomic rename op */
-	unsigned char	addname;	/* T/F: this is an add operation */
-	unsigned char	oknoent;	/* T/F: ok to return ENOENT, else die */
+	int		op_flags;	/* operation flags */
+	enum xfs_dacmp	cmpresult;	/* name compare result for lookups */
 } xfs_da_args_t;
 
+/*
+ * Operation flags:
+ */
+#define XFS_DA_OP_JUSTCHECK	0x0001	/* check for ok with no space */
+#define XFS_DA_OP_RENAME	0x0002	/* this is an atomic rename op */
+#define XFS_DA_OP_ADDNAME	0x0004	/* this is an add operation */
+#define XFS_DA_OP_OKNOENT	0x0008	/* lookup/add op, ENOENT ok, else die */
+#define XFS_DA_OP_CILOOKUP	0x0010	/* lookup to return CI name if found */
+
 /*
  * Structure to describe buffer(s) for a block.
  * This is needed in the directory version 2 format case, when
@@ -201,6 +217,14 @@ typedef struct xfs_da_state {
 		(uint)(XFS_DA_LOGOFF(BASE, ADDR)), \
 		(uint)(XFS_DA_LOGOFF(BASE, ADDR)+(SIZE)-1)
 
+/*
+ * Name ops for directory and/or attr name operations
+ */
+struct xfs_nameops {
+	xfs_dahash_t	(*hashname)(struct xfs_name *);
+	enum xfs_dacmp	(*compname)(struct xfs_da_args *, const char *, int);
+};
+
 
 #ifdef __KERNEL__
 /*========================================================================
@@ -249,6 +273,10 @@ int	xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
 					  xfs_dabuf_t *dead_buf);
 
 uint xfs_da_hashname(const uchar_t *name_string, int name_length);
+enum xfs_dacmp xfs_da_compname(struct xfs_da_args *args,
+				const char *name, int len);
+
+
 xfs_da_state_t *xfs_da_state_alloc(void);
 void xfs_da_state_free(xfs_da_state_t *state);
 

fs/xfs/xfs_dfrag.c

@@ -116,7 +116,7 @@ xfs_swapext(
  out_put_file:
 	fput(file);
  out_free_sxp:
-	kmem_free(sxp, sizeof(xfs_swapext_t));
+	kmem_free(sxp);
  out:
 	return error;
 }
@@ -381,6 +381,6 @@ xfs_swap_extents(
 		xfs_iunlock(tip, lock_flags);
 	}
 	if (tempifp != NULL)
-		kmem_free(tempifp, sizeof(xfs_ifork_t));
+		kmem_free(tempifp);
 	return error;
 }

fs/xfs/xfs_dir2.c

@@ -46,6 +46,54 @@
 
 struct xfs_name xfs_name_dotdot = {"..", 2};
 
+extern const struct xfs_nameops xfs_default_nameops;
+
+/*
+ * ASCII case-insensitive (ie. A-Z) support for directories that was
+ * used in IRIX.
+ */
+STATIC xfs_dahash_t
+xfs_ascii_ci_hashname(
+	struct xfs_name	*name)
+{
+	xfs_dahash_t	hash;
+	int		i;
+
+	for (i = 0, hash = 0; i < name->len; i++)
+		hash = tolower(name->name[i]) ^ rol32(hash, 7);
+
+	return hash;
+}
+
+STATIC enum xfs_dacmp
+xfs_ascii_ci_compname(
+	struct xfs_da_args *args,
+	const char	*name,
+	int 		len)
+{
+	enum xfs_dacmp	result;
+	int		i;
+
+	if (args->namelen != len)
+		return XFS_CMP_DIFFERENT;
+
+	result = XFS_CMP_EXACT;
+	for (i = 0; i < len; i++) {
+		if (args->name[i] == name[i])
+			continue;
+		if (tolower(args->name[i]) != tolower(name[i]))
+			return XFS_CMP_DIFFERENT;
+		result = XFS_CMP_CASE;
+	}
+
+	return result;
+}
+
+static struct xfs_nameops xfs_ascii_ci_nameops = {
+	.hashname	= xfs_ascii_ci_hashname,
+	.compname	= xfs_ascii_ci_compname,
+};
+
 void
 xfs_dir_mount(
 	xfs_mount_t	*mp)
@@ -65,6 +113,10 @@ xfs_dir_mount(
 		(mp->m_dirblksize - (uint)sizeof(xfs_da_node_hdr_t)) /
 		(uint)sizeof(xfs_da_node_entry_t);
 	mp->m_dir_magicpct = (mp->m_dirblksize * 37) / 100;
+	if (xfs_sb_version_hasasciici(&mp->m_sb))
+		mp->m_dirnameops = &xfs_ascii_ci_nameops;
+	else
+		mp->m_dirnameops = &xfs_default_nameops;
 }
 
 /*
@@ -162,9 +214,10 @@ xfs_dir_createname(
 		return rval;
 	XFS_STATS_INC(xs_dir_create);
 
+	memset(&args, 0, sizeof(xfs_da_args_t));
 	args.name = name->name;
 	args.namelen = name->len;
-	args.hashval = xfs_da_hashname(name->name, name->len);
+	args.hashval = dp->i_mount->m_dirnameops->hashname(name);
 	args.inumber = inum;
 	args.dp = dp;
 	args.firstblock = first;
@@ -172,8 +225,7 @@ xfs_dir_createname(
 	args.total = total;
 	args.whichfork = XFS_DATA_FORK;
 	args.trans = tp;
-	args.justcheck = 0;
-	args.addname = args.oknoent = 1;
+	args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT;
 
 	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
 		rval = xfs_dir2_sf_addname(&args);
@@ -190,15 +242,44 @@ xfs_dir_createname(
 	return rval;
 }
 
+/*
+ * If doing a CI lookup and case-insensitive match, dup actual name into
+ * args.value. Return EEXIST for success (ie. name found) or an error.
+ */
+int
+xfs_dir_cilookup_result(
+	struct xfs_da_args *args,
+	const char	*name,
+	int		len)
+{
+	if (args->cmpresult == XFS_CMP_DIFFERENT)
+		return ENOENT;
+	if (args->cmpresult != XFS_CMP_CASE ||
+					!(args->op_flags & XFS_DA_OP_CILOOKUP))
+		return EEXIST;
+
+	args->value = kmem_alloc(len, KM_MAYFAIL);
+	if (!args->value)
+		return ENOMEM;
+
+	memcpy(args->value, name, len);
+	args->valuelen = len;
+	return EEXIST;
+}
+
 /*
  * Lookup a name in a directory, give back the inode number.
+ * If ci_name is not NULL, returns the actual name in ci_name if it differs
+ * to name, or ci_name->name is set to NULL for an exact match.
  */
+
 int
 xfs_dir_lookup(
 	xfs_trans_t	*tp,
 	xfs_inode_t	*dp,
 	struct xfs_name	*name,
-	xfs_ino_t	*inum)		/* out: inode number */
+	xfs_ino_t	*inum,		/* out: inode number */
+	struct xfs_name *ci_name)	/* out: actual name if CI match */
 {
 	xfs_da_args_t	args;
 	int		rval;
@@ -206,15 +287,17 @@ xfs_dir_lookup(
 
 	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
 	XFS_STATS_INC(xs_dir_lookup);
-	memset(&args, 0, sizeof(xfs_da_args_t));
 
+	memset(&args, 0, sizeof(xfs_da_args_t));
 	args.name = name->name;
 	args.namelen = name->len;
-	args.hashval = xfs_da_hashname(name->name, name->len);
+	args.hashval = dp->i_mount->m_dirnameops->hashname(name);
 	args.dp = dp;
 	args.whichfork = XFS_DATA_FORK;
 	args.trans = tp;
-	args.oknoent = 1;
+	args.op_flags = XFS_DA_OP_OKNOENT;
+	if (ci_name)
+		args.op_flags |= XFS_DA_OP_CILOOKUP;
 
 	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
 		rval = xfs_dir2_sf_lookup(&args);
@@ -230,8 +313,13 @@ xfs_dir_lookup(
 		rval = xfs_dir2_node_lookup(&args);
 	if (rval == EEXIST)
 		rval = 0;
-	if (rval == 0)
+	if (!rval) {
 		*inum = args.inumber;
+		if (ci_name) {
+			ci_name->name = args.value;
+			ci_name->len = args.valuelen;
+		}
+	}
 	return rval;
 }
 
@@ -255,9 +343,10 @@ xfs_dir_removename(
 	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
 	XFS_STATS_INC(xs_dir_remove);
 
+	memset(&args, 0, sizeof(xfs_da_args_t));
 	args.name = name->name;
 	args.namelen = name->len;
-	args.hashval = xfs_da_hashname(name->name, name->len);
+	args.hashval = dp->i_mount->m_dirnameops->hashname(name);
 	args.inumber = ino;
 	args.dp = dp;
 	args.firstblock = first;
@@ -265,7 +354,6 @@ xfs_dir_removename(
 	args.total = total;
 	args.whichfork = XFS_DATA_FORK;
 	args.trans = tp;
-	args.justcheck = args.addname = args.oknoent = 0;
 
 	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
 		rval = xfs_dir2_sf_removename(&args);
@@ -338,9 +426,10 @@ xfs_dir_replace(
 	if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum)))
 		return rval;
 
+	memset(&args, 0, sizeof(xfs_da_args_t));
 	args.name = name->name;
 	args.namelen = name->len;
-	args.hashval = xfs_da_hashname(name->name, name->len);
+	args.hashval = dp->i_mount->m_dirnameops->hashname(name);
 	args.inumber = inum;
 	args.dp = dp;
 	args.firstblock = first;
@@ -348,7 +437,6 @@ xfs_dir_replace(
 	args.total = total;
 	args.whichfork = XFS_DATA_FORK;
 	args.trans = tp;
-	args.justcheck = args.addname = args.oknoent = 0;
 
 	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
 		rval = xfs_dir2_sf_replace(&args);
@@ -384,15 +472,16 @@ xfs_dir_canenter(
 		return 0;
 
 	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
-	memset(&args, 0, sizeof(xfs_da_args_t));
 
+	memset(&args, 0, sizeof(xfs_da_args_t));
 	args.name = name->name;
 	args.namelen = name->len;
-	args.hashval = xfs_da_hashname(name->name, name->len);
+	args.hashval = dp->i_mount->m_dirnameops->hashname(name);
 	args.dp = dp;
 	args.whichfork = XFS_DATA_FORK;
 	args.trans = tp;
-	args.justcheck = args.addname = args.oknoent = 1;
+	args.op_flags = XFS_DA_OP_JUSTCHECK | XFS_DA_OP_ADDNAME |
+							XFS_DA_OP_OKNOENT;
 
 	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
 		rval = xfs_dir2_sf_addname(&args);
@@ -493,7 +582,7 @@ xfs_dir2_grow_inode(
 					args->firstblock, args->total,
 					&mapp[mapi], &nmap, args->flist,
 					NULL))) {
-				kmem_free(mapp, sizeof(*mapp) * count);
+				kmem_free(mapp);
 				return error;
 			}
 			if (nmap < 1)
@@ -525,14 +614,14 @@ xfs_dir2_grow_inode(
 	    mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount !=
 	    bno + count) {
 		if (mapp != &map)
-			kmem_free(mapp, sizeof(*mapp) * count);
+			kmem_free(mapp);
 		return XFS_ERROR(ENOSPC);
 	}
 	/*
 	 * Done with the temporary mapping table.
 	 */
 	if (mapp != &map)
-		kmem_free(mapp, sizeof(*mapp) * count);
+		kmem_free(mapp);
 	*dbp = xfs_dir2_da_to_db(mp, (xfs_dablk_t)bno);
 	/*
 	 * Update file's size if this is the data space and it grew.

fs/xfs/xfs_dir2.h

@@ -74,7 +74,8 @@ extern int xfs_dir_createname(struct xfs_trans *tp, struct xfs_inode *dp,
 				xfs_fsblock_t *first,
 				struct xfs_bmap_free *flist, xfs_extlen_t tot);
 extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp,
-				struct xfs_name *name, xfs_ino_t *inum);
+				struct xfs_name *name, xfs_ino_t *inum,
+				struct xfs_name *ci_name);
 extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp,
 				struct xfs_name *name, xfs_ino_t ino,
 				xfs_fsblock_t *first,
@@ -99,4 +100,7 @@ extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp,
 extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
 				struct xfs_dabuf *bp);
 
+extern int xfs_dir_cilookup_result(struct xfs_da_args *args, const char *name,
+				int len);
+
 #endif	/* __XFS_DIR2_H__ */

fs/xfs/xfs_dir2_block.c

@@ -215,7 +215,7 @@ xfs_dir2_block_addname(
 	/*
 	 * If this isn't a real add, we're done with the buffer.
 	 */
-	if (args->justcheck)
+	if (args->op_flags & XFS_DA_OP_JUSTCHECK)
 		xfs_da_brelse(tp, bp);
 	/*
 	 * If we don't have space for the new entry & leaf ...
@@ -225,7 +225,7 @@ xfs_dir2_block_addname(
 		 * Not trying to actually do anything, or don't have
 		 * a space reservation: return no-space.
 		 */
-		if (args->justcheck || args->total == 0)
+		if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0)
 			return XFS_ERROR(ENOSPC);
 		/*
 		 * Convert to the next larger format.
@@ -240,7 +240,7 @@ xfs_dir2_block_addname(
 	/*
 	 * Just checking, and it would work, so say so.
 	 */
-	if (args->justcheck)
+	if (args->op_flags & XFS_DA_OP_JUSTCHECK)
 		return 0;
 	needlog = needscan = 0;
 	/*
@@ -610,14 +610,15 @@ xfs_dir2_block_lookup(
 	/*
 	 * Get the offset from the leaf entry, to point to the data.
 	 */
-	dep = (xfs_dir2_data_entry_t *)
-	      ((char *)block + xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address)));
+	dep = (xfs_dir2_data_entry_t *)((char *)block +
+		xfs_dir2_dataptr_to_off(mp, be32_to_cpu(blp[ent].address)));
 	/*
-	 * Fill in inode number, release the block.
+	 * Fill in inode number, CI name if appropriate, release the block.
 	 */
 	args->inumber = be64_to_cpu(dep->inumber);
+	error = xfs_dir_cilookup_result(args, dep->name, dep->namelen);
 	xfs_da_brelse(args->trans, bp);
-	return XFS_ERROR(EEXIST);
+	return XFS_ERROR(error);
 }
 
 /*
@@ -643,6 +644,7 @@ xfs_dir2_block_lookup_int(
 	int			mid;		/* binary search current idx */
 	xfs_mount_t		*mp;		/* filesystem mount point */
 	xfs_trans_t		*tp;		/* transaction pointer */
+	enum xfs_dacmp		cmp;		/* comparison result */
 
 	dp = args->dp;
 	tp = args->trans;
@@ -673,7 +675,7 @@ xfs_dir2_block_lookup_int(
 		else
 			high = mid - 1;
 		if (low > high) {
-			ASSERT(args->oknoent);
+			ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
 			xfs_da_brelse(tp, bp);
 			return XFS_ERROR(ENOENT);
 		}
@@ -697,20 +699,31 @@ xfs_dir2_block_lookup_int(
 		dep = (xfs_dir2_data_entry_t *)
 			((char *)block + xfs_dir2_dataptr_to_off(mp, addr));
 		/*
-		 * Compare, if it's right give back buffer & entry number.
+		 * Compare name and if it's an exact match, return the index
+		 * and buffer. If it's the first case-insensitive match, store
+		 * the index and buffer and continue looking for an exact match.
 		 */
-		if (dep->namelen == args->namelen &&
-		    dep->name[0] == args->name[0] &&
-		    memcmp(dep->name, args->name, args->namelen) == 0) {
+		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
+		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+			args->cmpresult = cmp;
 			*bpp = bp;
 			*entno = mid;
-			return 0;
+			if (cmp == XFS_CMP_EXACT)
+				return 0;
 		}
-	} while (++mid < be32_to_cpu(btp->count) && be32_to_cpu(blp[mid].hashval) == hash);
+	} while (++mid < be32_to_cpu(btp->count) &&
+			be32_to_cpu(blp[mid].hashval) == hash);
+
+	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
+	/*
+	 * Here, we can only be doing a lookup (not a rename or replace).
+	 * If a case-insensitive match was found earlier, return success.
+	 */
+	if (args->cmpresult == XFS_CMP_CASE)
+		return 0;
 	/*
 	 * No match, release the buffer and return ENOENT.
 	 */
-	ASSERT(args->oknoent);
 	xfs_da_brelse(tp, bp);
 	return XFS_ERROR(ENOENT);
 }
@@ -1033,6 +1046,7 @@ xfs_dir2_sf_to_block(
 	xfs_dir2_sf_t		*sfp;		/* shortform structure */
 	__be16			*tagp;		/* end of data entry */
 	xfs_trans_t		*tp;		/* transaction pointer */
+	struct xfs_name		name;
 
 	xfs_dir2_trace_args("sf_to_block", args);
 	dp = args->dp;
@@ -1071,7 +1085,7 @@ xfs_dir2_sf_to_block(
 	 */
 	error = xfs_dir2_grow_inode(args, XFS_DIR2_DATA_SPACE, &blkno);
 	if (error) {
-		kmem_free(buf, buf_len);
+		kmem_free(buf);
 		return error;
 	}
 	/*
@@ -1079,7 +1093,7 @@ xfs_dir2_sf_to_block(
 	 */
 	error = xfs_dir2_data_init(args, blkno, &bp);
 	if (error) {
-		kmem_free(buf, buf_len);
+		kmem_free(buf);
 		return error;
 	}
 	block = bp->data;
@@ -1187,8 +1201,10 @@ xfs_dir2_sf_to_block(
 		tagp = xfs_dir2_data_entry_tag_p(dep);
 		*tagp = cpu_to_be16((char *)dep - (char *)block);
 		xfs_dir2_data_log_entry(tp, bp, dep);
-		blp[2 + i].hashval = cpu_to_be32(xfs_da_hashname(
-					(char *)sfep->name, sfep->namelen));
+		name.name = sfep->name;
+		name.len = sfep->namelen;
+		blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops->
+							hashname(&name));
 		blp[2 + i].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
 						 (char *)dep - (char *)block));
 		offset = (int)((char *)(tagp + 1) - (char *)block);
@@ -1198,7 +1214,7 @@ xfs_dir2_sf_to_block(
 			sfep = xfs_dir2_sf_nextentry(sfp, sfep);
 	}
 	/* Done with the temporary buffer */
-	kmem_free(buf, buf_len);
+	kmem_free(buf);
 	/*
 	 * Sort the leaf entries by hash value.
 	 */

fs/xfs/xfs_dir2_data.c

@@ -65,6 +65,7 @@ xfs_dir2_data_check(
 	xfs_mount_t		*mp;		/* filesystem mount point */
 	char			*p;		/* current data position */
 	int			stale;		/* count of stale leaves */
+	struct xfs_name		name;
 
 	mp = dp->i_mount;
 	d = bp->data;
@@ -140,7 +141,9 @@ xfs_dir2_data_check(
 			addr = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
 				(xfs_dir2_data_aoff_t)
 				((char *)dep - (char *)d));
-			hash = xfs_da_hashname((char *)dep->name, dep->namelen);
+			name.name = dep->name;
+			name.len = dep->namelen;
+			hash = mp->m_dirnameops->hashname(&name);
 			for (i = 0; i < be32_to_cpu(btp->count); i++) {
 				if (be32_to_cpu(lep[i].address) == addr &&
 				    be32_to_cpu(lep[i].hashval) == hash)

fs/xfs/xfs_dir2_leaf.c

@@ -263,20 +263,21 @@ xfs_dir2_leaf_addname(
 	 * If we don't have enough free bytes but we can make enough
 	 * by compacting out stale entries, we'll do that.
 	 */
-	if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] < needbytes &&
-	    be16_to_cpu(leaf->hdr.stale) > 1) {
+	if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] <
+				needbytes && be16_to_cpu(leaf->hdr.stale) > 1) {
 		compact = 1;
 	}
 	/*
 	 * Otherwise if we don't have enough free bytes we need to
 	 * convert to node form.
 	 */
-	else if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] <
-		 needbytes) {
+	else if ((char *)bestsp - (char *)&leaf->ents[be16_to_cpu(
+						leaf->hdr.count)] < needbytes) {
 		/*
 		 * Just checking or no space reservation, give up.
 		 */
-		if (args->justcheck || args->total == 0) {
+		if ((args->op_flags & XFS_DA_OP_JUSTCHECK) ||
+							args->total == 0) {
 			xfs_da_brelse(tp, lbp);
 			return XFS_ERROR(ENOSPC);
 		}
@@ -301,7 +302,7 @@ xfs_dir2_leaf_addname(
 	 * If just checking, then it will fit unless we needed to allocate
 	 * a new data block.
 	 */
-	if (args->justcheck) {
+	if (args->op_flags & XFS_DA_OP_JUSTCHECK) {
 		xfs_da_brelse(tp, lbp);
 		return use_block == -1 ? XFS_ERROR(ENOSPC) : 0;
 	}
@@ -1110,7 +1111,7 @@ xfs_dir2_leaf_getdents(
 		*offset = XFS_DIR2_MAX_DATAPTR;
 	else
 		*offset = xfs_dir2_byte_to_dataptr(mp, curoff);
-	kmem_free(map, map_size * sizeof(*map));
+	kmem_free(map);
 	if (bp)
 		xfs_da_brelse(NULL, bp);
 	return error;
@@ -1298,12 +1299,13 @@ xfs_dir2_leaf_lookup(
 	      ((char *)dbp->data +
 	       xfs_dir2_dataptr_to_off(dp->i_mount, be32_to_cpu(lep->address)));
 	/*
-	 * Return the found inode number.
+	 * Return the found inode number & CI name if appropriate
 	 */
 	args->inumber = be64_to_cpu(dep->inumber);
+	error = xfs_dir_cilookup_result(args, dep->name, dep->namelen);
 	xfs_da_brelse(tp, dbp);
 	xfs_da_brelse(tp, lbp);
-	return XFS_ERROR(EEXIST);
+	return XFS_ERROR(error);
 }
 
 /*
@@ -1319,8 +1321,8 @@ xfs_dir2_leaf_lookup_int(
 	int			*indexp,	/* out: index in leaf block */
 	xfs_dabuf_t		**dbpp)		/* out: data buffer */
 {
-	xfs_dir2_db_t		curdb;		/* current data block number */
-	xfs_dabuf_t		*dbp;		/* data buffer */
+	xfs_dir2_db_t		curdb = -1;	/* current data block number */
+	xfs_dabuf_t		*dbp = NULL;	/* data buffer */
 	xfs_dir2_data_entry_t	*dep;		/* data entry */
 	xfs_inode_t		*dp;		/* incore directory inode */
 	int			error;		/* error return code */
@@ -1331,6 +1333,8 @@ xfs_dir2_leaf_lookup_int(
 	xfs_mount_t		*mp;		/* filesystem mount point */
 	xfs_dir2_db_t		newdb;		/* new data block number */
 	xfs_trans_t		*tp;		/* transaction pointer */
+	xfs_dir2_db_t		cidb = -1;	/* case match data block no. */
+	enum xfs_dacmp		cmp;		/* name compare result */
 
 	dp = args->dp;
 	tp = args->trans;
@@ -1338,11 +1342,10 @@ xfs_dir2_leaf_lookup_int(
 	/*
 	 * Read the leaf block into the buffer.
 	 */
-	if ((error =
-	    xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
-		    XFS_DATA_FORK))) {
+	error = xfs_da_read_buf(tp, dp, mp->m_dirleafblk, -1, &lbp,
+							XFS_DATA_FORK);
+	if (error)
 		return error;
-	}
 	*lbpp = lbp;
 	leaf = lbp->data;
 	xfs_dir2_leaf_check(dp, lbp);
@@ -1354,9 +1357,9 @@ xfs_dir2_leaf_lookup_int(
 	 * Loop over all the entries with the right hash value
 	 * looking to match the name.
 	 */
-	for (lep = &leaf->ents[index], dbp = NULL, curdb = -1;
-	     index < be16_to_cpu(leaf->hdr.count) && be32_to_cpu(lep->hashval) == args->hashval;
-	     lep++, index++) {
+	for (lep = &leaf->ents[index]; index < be16_to_cpu(leaf->hdr.count) &&
+				be32_to_cpu(lep->hashval) == args->hashval;
+				lep++, index++) {
 		/*
 		 * Skip over stale leaf entries.
 		 */
@@ -1373,10 +1376,10 @@ xfs_dir2_leaf_lookup_int(
 		if (newdb != curdb) {
 			if (dbp)
 				xfs_da_brelse(tp, dbp);
-			if ((error =
-			    xfs_da_read_buf(tp, dp,
-				    xfs_dir2_db_to_da(mp, newdb), -1, &dbp,
-				    XFS_DATA_FORK))) {
+			error = xfs_da_read_buf(tp, dp,
+						xfs_dir2_db_to_da(mp, newdb),
+						-1, &dbp, XFS_DATA_FORK);
+			if (error) {
 				xfs_da_brelse(tp, lbp);
 				return error;
 			}
@@ -1386,24 +1389,50 @@ xfs_dir2_leaf_lookup_int(
 		/*
 		 * Point to the data entry.
 		 */
-		dep = (xfs_dir2_data_entry_t *)
-		      ((char *)dbp->data +
-		       xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address)));
+		dep = (xfs_dir2_data_entry_t *)((char *)dbp->data +
+			xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address)));
 		/*
-		 * If it matches then return it.
+		 * Compare name and if it's an exact match, return the index
+		 * and buffer. If it's the first case-insensitive match, store
+		 * the index and buffer and continue looking for an exact match.
 		 */
-		if (dep->namelen == args->namelen &&
-		    dep->name[0] == args->name[0] &&
-		    memcmp(dep->name, args->name, args->namelen) == 0) {
-			*dbpp = dbp;
+		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
+		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+			args->cmpresult = cmp;
 			*indexp = index;
-			return 0;
+			/* case exact match: return the current buffer. */
+			if (cmp == XFS_CMP_EXACT) {
+				*dbpp = dbp;
+				return 0;
+			}
+			cidb = curdb;
 		}
 	}
+	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
+	/*
+	 * Here, we can only be doing a lookup (not a rename or remove).
+	 * If a case-insensitive match was found earlier, re-read the
+	 * appropriate data block if required and return it.
+	 */
+	if (args->cmpresult == XFS_CMP_CASE) {
+		ASSERT(cidb != -1);
+		if (cidb != curdb) {
+			xfs_da_brelse(tp, dbp);
+			error = xfs_da_read_buf(tp, dp,
+						xfs_dir2_db_to_da(mp, cidb),
+						-1, &dbp, XFS_DATA_FORK);
+			if (error) {
+				xfs_da_brelse(tp, lbp);
+				return error;
+			}
+		}
+		*dbpp = dbp;
+		return 0;
+	}
 	/*
 	 * No match found, return ENOENT.
 	 */
-	ASSERT(args->oknoent);
+	ASSERT(cidb == -1);
 	if (dbp)
 		xfs_da_brelse(tp, dbp);
 	xfs_da_brelse(tp, lbp);

fs/xfs/xfs_dir2_node.c

@@ -226,7 +226,7 @@ xfs_dir2_leafn_add(
 	ASSERT(index == be16_to_cpu(leaf->hdr.count) ||
 	       be32_to_cpu(leaf->ents[index].hashval) >= args->hashval);
 
-	if (args->justcheck)
+	if (args->op_flags & XFS_DA_OP_JUSTCHECK)
 		return 0;
 
 	/*
@@ -387,28 +387,26 @@ xfs_dir2_leafn_lasthash(
 }
 
 /*
- * Look up a leaf entry in a node-format leaf block.
- * If this is an addname then the extrablk in state is a freespace block,
- * otherwise it's a data block.
+ * Look up a leaf entry for space to add a name in a node-format leaf block.
+ * The extrablk in state is a freespace block.
  */
-int
-xfs_dir2_leafn_lookup_int(
+STATIC int
+xfs_dir2_leafn_lookup_for_addname(
 	xfs_dabuf_t		*bp,		/* leaf buffer */
 	xfs_da_args_t		*args,		/* operation arguments */
 	int			*indexp,	/* out: leaf entry index */
 	xfs_da_state_t		*state)		/* state to fill in */
 {
-	xfs_dabuf_t		*curbp;		/* current data/free buffer */
-	xfs_dir2_db_t		curdb;		/* current data block number */
-	xfs_dir2_db_t		curfdb;		/* current free block number */
-	xfs_dir2_data_entry_t	*dep;		/* data block entry */
+	xfs_dabuf_t		*curbp = NULL;	/* current data/free buffer */
+	xfs_dir2_db_t		curdb = -1;	/* current data block number */
+	xfs_dir2_db_t		curfdb = -1;	/* current free block number */
 	xfs_inode_t		*dp;		/* incore directory inode */
 	int			error;		/* error return value */
 	int			fi;		/* free entry index */
-	xfs_dir2_free_t		*free=NULL;	/* free block structure */
+	xfs_dir2_free_t		*free = NULL;	/* free block structure */
 	int			index;		/* leaf entry index */
 	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
-	int			length=0;	/* length of new data entry */
+	int			length;		/* length of new data entry */
 	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
 	xfs_mount_t		*mp;		/* filesystem mount point */
 	xfs_dir2_db_t		newdb;		/* new data block number */
@@ -431,33 +429,20 @@ xfs_dir2_leafn_lookup_int(
 	/*
 	 * Do we have a buffer coming in?
 	 */
-	if (state->extravalid)
+	if (state->extravalid) {
+		/* If so, it's a free block buffer, get the block number. */
 		curbp = state->extrablk.bp;
-	else
-		curbp = NULL;
-	/*
-	 * For addname, it's a free block buffer, get the block number.
-	 */
-	if (args->addname) {
-		curfdb = curbp ? state->extrablk.blkno : -1;
-		curdb = -1;
-		length = xfs_dir2_data_entsize(args->namelen);
-		if ((free = (curbp ? curbp->data : NULL)))
-			ASSERT(be32_to_cpu(free->hdr.magic) == XFS_DIR2_FREE_MAGIC);
-	}
-	/*
-	 * For others, it's a data block buffer, get the block number.
-	 */
-	else {
-		curfdb = -1;
-		curdb = curbp ? state->extrablk.blkno : -1;
+		curfdb = state->extrablk.blkno;
+		free = curbp->data;
+		ASSERT(be32_to_cpu(free->hdr.magic) == XFS_DIR2_FREE_MAGIC);
 	}
+	length = xfs_dir2_data_entsize(args->namelen);
 	/*
 	 * Loop over leaf entries with the right hash value.
 	 */
-	for (lep = &leaf->ents[index];
-	     index < be16_to_cpu(leaf->hdr.count) && be32_to_cpu(lep->hashval) == args->hashval;
-	     lep++, index++) {
+	for (lep = &leaf->ents[index]; index < be16_to_cpu(leaf->hdr.count) &&
+				be32_to_cpu(lep->hashval) == args->hashval;
+				lep++, index++) {
 		/*
 		 * Skip stale leaf entries.
 		 */
@@ -471,160 +456,243 @@ xfs_dir2_leafn_lookup_int(
 		 * For addname, we're looking for a place to put the new entry.
 		 * We want to use a data block with an entry of equal
 		 * hash value to ours if there is one with room.
+		 *
+		 * If this block isn't the data block we already have
+		 * in hand, take a look at it.
 		 */
-		if (args->addname) {
+		if (newdb != curdb) {
+			curdb = newdb;
 			/*
-			 * If this block isn't the data block we already have
-			 * in hand, take a look at it.
+			 * Convert the data block to the free block
+			 * holding its freespace information.
 			 */
-			if (newdb != curdb) {
-				curdb = newdb;
-				/*
-				 * Convert the data block to the free block
-				 * holding its freespace information.
-				 */
-				newfdb = xfs_dir2_db_to_fdb(mp, newdb);
-				/*
-				 * If it's not the one we have in hand,
-				 * read it in.
-				 */
-				if (newfdb != curfdb) {
-					/*
-					 * If we had one before, drop it.
-					 */
-					if (curbp)
-						xfs_da_brelse(tp, curbp);
-					/*
-					 * Read the free block.
-					 */
-					if ((error = xfs_da_read_buf(tp, dp,
-							xfs_dir2_db_to_da(mp,
-								newfdb),
-							-1, &curbp,
-							XFS_DATA_FORK))) {
-						return error;
-					}
-					free = curbp->data;
-					ASSERT(be32_to_cpu(free->hdr.magic) ==
-					       XFS_DIR2_FREE_MAGIC);
-					ASSERT((be32_to_cpu(free->hdr.firstdb) %
-						XFS_DIR2_MAX_FREE_BESTS(mp)) ==
-					       0);
-					ASSERT(be32_to_cpu(free->hdr.firstdb) <= curdb);
-					ASSERT(curdb <
-					       be32_to_cpu(free->hdr.firstdb) +
-					       be32_to_cpu(free->hdr.nvalid));
-				}
-				/*
-				 * Get the index for our entry.
-				 */
-				fi = xfs_dir2_db_to_fdindex(mp, curdb);
-				/*
-				 * If it has room, return it.
-				 */
-				if (unlikely(be16_to_cpu(free->bests[fi]) == NULLDATAOFF)) {
-					XFS_ERROR_REPORT("xfs_dir2_leafn_lookup_int",
-							 XFS_ERRLEVEL_LOW, mp);
-					if (curfdb != newfdb)
-						xfs_da_brelse(tp, curbp);
-					return XFS_ERROR(EFSCORRUPTED);
-				}
-				curfdb = newfdb;
-				if (be16_to_cpu(free->bests[fi]) >= length) {
-					*indexp = index;
-					state->extravalid = 1;
-					state->extrablk.bp = curbp;
-					state->extrablk.blkno = curfdb;
-					state->extrablk.index = fi;
-					state->extrablk.magic =
-						XFS_DIR2_FREE_MAGIC;
-					ASSERT(args->oknoent);
-					return XFS_ERROR(ENOENT);
-				}
-			}
-		}
-		/*
-		 * Not adding a new entry, so we really want to find
-		 * the name given to us.
-		 */
-		else {
+			newfdb = xfs_dir2_db_to_fdb(mp, newdb);
 			/*
-			 * If it's a different data block, go get it.
+			 * If it's not the one we have in hand, read it in.
 			 */
-			if (newdb != curdb) {
+			if (newfdb != curfdb) {
 				/*
-				 * If we had a block before, drop it.
+				 * If we had one before, drop it.
 				 */
 				if (curbp)
 					xfs_da_brelse(tp, curbp);
 				/*
-				 * Read the data block.
+				 * Read the free block.
 				 */
-				if ((error =
-				    xfs_da_read_buf(tp, dp,
-					    xfs_dir2_db_to_da(mp, newdb), -1,
-					    &curbp, XFS_DATA_FORK))) {
+				error = xfs_da_read_buf(tp, dp,
+						xfs_dir2_db_to_da(mp, newfdb),
+						-1, &curbp, XFS_DATA_FORK);
+				if (error)
 					return error;
-				}
-				xfs_dir2_data_check(dp, curbp);
-				curdb = newdb;
+				free = curbp->data;
+				ASSERT(be32_to_cpu(free->hdr.magic) ==
+					XFS_DIR2_FREE_MAGIC);
+				ASSERT((be32_to_cpu(free->hdr.firstdb) %
+					XFS_DIR2_MAX_FREE_BESTS(mp)) == 0);
+				ASSERT(be32_to_cpu(free->hdr.firstdb) <= curdb);
+				ASSERT(curdb < be32_to_cpu(free->hdr.firstdb) +
+					be32_to_cpu(free->hdr.nvalid));
 			}
 			/*
-			 * Point to the data entry.
+			 * Get the index for our entry.
 			 */
-			dep = (xfs_dir2_data_entry_t *)
-			      ((char *)curbp->data +
-			       xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address)));
+			fi = xfs_dir2_db_to_fdindex(mp, curdb);
 			/*
-			 * Compare the entry, return it if it matches.
+			 * If it has room, return it.
 			 */
-			if (dep->namelen == args->namelen &&
-			    dep->name[0] == args->name[0] &&
-			    memcmp(dep->name, args->name, args->namelen) == 0) {
-				args->inumber = be64_to_cpu(dep->inumber);
-				*indexp = index;
-				state->extravalid = 1;
-				state->extrablk.bp = curbp;
-				state->extrablk.blkno = curdb;
-				state->extrablk.index =
-					(int)((char *)dep -
-					      (char *)curbp->data);
-				state->extrablk.magic = XFS_DIR2_DATA_MAGIC;
-				return XFS_ERROR(EEXIST);
+			if (unlikely(be16_to_cpu(free->bests[fi]) == NULLDATAOFF)) {
+				XFS_ERROR_REPORT("xfs_dir2_leafn_lookup_int",
+							XFS_ERRLEVEL_LOW, mp);
+				if (curfdb != newfdb)
+					xfs_da_brelse(tp, curbp);
+				return XFS_ERROR(EFSCORRUPTED);
 			}
+			curfdb = newfdb;
+			if (be16_to_cpu(free->bests[fi]) >= length)
+				goto out;
 		}
 	}
+	/* Didn't find any space */
+	fi = -1;
+out:
+	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
+	if (curbp) {
+		/* Giving back a free block. */
+		state->extravalid = 1;
+		state->extrablk.bp = curbp;
+		state->extrablk.index = fi;
+		state->extrablk.blkno = curfdb;
+		state->extrablk.magic = XFS_DIR2_FREE_MAGIC;
+	} else {
+		state->extravalid = 0;
+	}
 	/*
-	 * Didn't find a match.
-	 * If we are holding a buffer, give it back in case our caller
-	 * finds it useful.
+	 * Return the index, that will be the insertion point.
 	 */
-	if ((state->extravalid = (curbp != NULL))) {
-		state->extrablk.bp = curbp;
-		state->extrablk.index = -1;
+	*indexp = index;
+	return XFS_ERROR(ENOENT);
+}
+
+/*
+ * Look up a leaf entry in a node-format leaf block.
+ * The extrablk in state a data block.
+ */
+STATIC int
+xfs_dir2_leafn_lookup_for_entry(
+	xfs_dabuf_t		*bp,		/* leaf buffer */
+	xfs_da_args_t		*args,		/* operation arguments */
+	int			*indexp,	/* out: leaf entry index */
+	xfs_da_state_t		*state)		/* state to fill in */
+{
+	xfs_dabuf_t		*curbp = NULL;	/* current data/free buffer */
+	xfs_dir2_db_t		curdb = -1;	/* current data block number */
+	xfs_dir2_data_entry_t	*dep;		/* data block entry */
+	xfs_inode_t		*dp;		/* incore directory inode */
+	int			error;		/* error return value */
+	int			index;		/* leaf entry index */
+	xfs_dir2_leaf_t		*leaf;		/* leaf structure */
+	xfs_dir2_leaf_entry_t	*lep;		/* leaf entry */
+	xfs_mount_t		*mp;		/* filesystem mount point */
+	xfs_dir2_db_t		newdb;		/* new data block number */
+	xfs_trans_t		*tp;		/* transaction pointer */
+	enum xfs_dacmp		cmp;		/* comparison result */
+
+	dp = args->dp;
+	tp = args->trans;
+	mp = dp->i_mount;
+	leaf = bp->data;
+	ASSERT(be16_to_cpu(leaf->hdr.info.magic) == XFS_DIR2_LEAFN_MAGIC);
+#ifdef __KERNEL__
+	ASSERT(be16_to_cpu(leaf->hdr.count) > 0);
+#endif
+	xfs_dir2_leafn_check(dp, bp);
+	/*
+	 * Look up the hash value in the leaf entries.
+	 */
+	index = xfs_dir2_leaf_search_hash(args, bp);
+	/*
+	 * Do we have a buffer coming in?
+	 */
+	if (state->extravalid) {
+		curbp = state->extrablk.bp;
+		curdb = state->extrablk.blkno;
+	}
+	/*
+	 * Loop over leaf entries with the right hash value.
+	 */
+	for (lep = &leaf->ents[index]; index < be16_to_cpu(leaf->hdr.count) &&
+				be32_to_cpu(lep->hashval) == args->hashval;
+				lep++, index++) {
 		/*
-		 * For addname, giving back a free block.
+		 * Skip stale leaf entries.
 		 */
-		if (args->addname) {
-			state->extrablk.blkno = curfdb;
-			state->extrablk.magic = XFS_DIR2_FREE_MAGIC;
+		if (be32_to_cpu(lep->address) == XFS_DIR2_NULL_DATAPTR)
+			continue;
+		/*
+		 * Pull the data block number from the entry.
+		 */
+		newdb = xfs_dir2_dataptr_to_db(mp, be32_to_cpu(lep->address));
+		/*
+		 * Not adding a new entry, so we really want to find
+		 * the name given to us.
+		 *
+		 * If it's a different data block, go get it.
+		 */
+		if (newdb != curdb) {
+			/*
+			 * If we had a block before that we aren't saving
+			 * for a CI name, drop it
+			 */
+			if (curbp && (args->cmpresult == XFS_CMP_DIFFERENT ||
+						curdb != state->extrablk.blkno))
+				xfs_da_brelse(tp, curbp);
+			/*
+			 * If needing the block that is saved with a CI match,
+			 * use it otherwise read in the new data block.
+			 */
+			if (args->cmpresult != XFS_CMP_DIFFERENT &&
+					newdb == state->extrablk.blkno) {
+				ASSERT(state->extravalid);
+				curbp = state->extrablk.bp;
+			} else {
+				error = xfs_da_read_buf(tp, dp,
+						xfs_dir2_db_to_da(mp, newdb),
+						-1, &curbp, XFS_DATA_FORK);
+				if (error)
+					return error;
+			}
+			xfs_dir2_data_check(dp, curbp);
+			curdb = newdb;
 		}
 		/*
-		 * For other callers, giving back a data block.
+		 * Point to the data entry.
 		 */
-		else {
+		dep = (xfs_dir2_data_entry_t *)((char *)curbp->data +
+			xfs_dir2_dataptr_to_off(mp, be32_to_cpu(lep->address)));
+		/*
+		 * Compare the entry and if it's an exact match, return
+		 * EEXIST immediately. If it's the first case-insensitive
+		 * match, store the block & inode number and continue looking.
+		 */
+		cmp = mp->m_dirnameops->compname(args, dep->name, dep->namelen);
+		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+			/* If there is a CI match block, drop it */
+			if (args->cmpresult != XFS_CMP_DIFFERENT &&
+						curdb != state->extrablk.blkno)
+				xfs_da_brelse(tp, state->extrablk.bp);
+			args->cmpresult = cmp;
+			args->inumber = be64_to_cpu(dep->inumber);
+			*indexp = index;
+			state->extravalid = 1;
+			state->extrablk.bp = curbp;
 			state->extrablk.blkno = curdb;
+			state->extrablk.index = (int)((char *)dep -
+							(char *)curbp->data);
 			state->extrablk.magic = XFS_DIR2_DATA_MAGIC;
+			if (cmp == XFS_CMP_EXACT)
+				return XFS_ERROR(EEXIST);
 		}
 	}
-	/*
-	 * Return the final index, that will be the insertion point.
-	 */
+	ASSERT(index == be16_to_cpu(leaf->hdr.count) ||
+					(args->op_flags & XFS_DA_OP_OKNOENT));
+	if (curbp) {
+		if (args->cmpresult == XFS_CMP_DIFFERENT) {
+			/* Giving back last used data block. */
+			state->extravalid = 1;
+			state->extrablk.bp = curbp;
+			state->extrablk.index = -1;
+			state->extrablk.blkno = curdb;
+			state->extrablk.magic = XFS_DIR2_DATA_MAGIC;
+		} else {
+			/* If the curbp is not the CI match block, drop it */
+			if (state->extrablk.bp != curbp)
+				xfs_da_brelse(tp, curbp);
+		}
+	} else {
+		state->extravalid = 0;
+	}
 	*indexp = index;
-	ASSERT(index == be16_to_cpu(leaf->hdr.count) || args->oknoent);
 	return XFS_ERROR(ENOENT);
 }
 
+/*
+ * Look up a leaf entry in a node-format leaf block.
+ * If this is an addname then the extrablk in state is a freespace block,
+ * otherwise it's a data block.
+ */
+int
+xfs_dir2_leafn_lookup_int(
+	xfs_dabuf_t		*bp,		/* leaf buffer */
+	xfs_da_args_t		*args,		/* operation arguments */
+	int			*indexp,	/* out: leaf entry index */
+	xfs_da_state_t		*state)		/* state to fill in */
+{
+	if (args->op_flags & XFS_DA_OP_ADDNAME)
+		return xfs_dir2_leafn_lookup_for_addname(bp, args, indexp,
+							state);
+	return xfs_dir2_leafn_lookup_for_entry(bp, args, indexp, state);
+}
+
 /*
  * Move count leaf entries from source to destination leaf.
  * Log entries and headers.  Stale entries are preserved.
@@ -823,9 +891,10 @@ xfs_dir2_leafn_rebalance(
 	 */
 	if (!state->inleaf)
 		blk2->index = blk1->index - be16_to_cpu(leaf1->hdr.count);
-	
-	/* 
-	 * Finally sanity check just to make sure we are not returning a negative index 
+
+	/*
+	 * Finally sanity check just to make sure we are not returning a
+	 * negative index
 	 */
 	if(blk2->index < 0) {
 		state->inleaf = 1;
@@ -1332,7 +1401,7 @@ xfs_dir2_node_addname(
 		/*
 		 * It worked, fix the hash values up the btree.
 		 */
-		if (!args->justcheck)
+		if (!(args->op_flags & XFS_DA_OP_JUSTCHECK))
 			xfs_da_fixhashpath(state, &state->path);
 	} else {
 		/*
@@ -1515,7 +1584,8 @@ xfs_dir2_node_addname_int(
 		/*
 		 * Not allowed to allocate, return failure.
 		 */
-		if (args->justcheck || args->total == 0) {
+		if ((args->op_flags & XFS_DA_OP_JUSTCHECK) ||
+							args->total == 0) {
 			/*
 			 * Drop the freespace buffer unless it came from our
 			 * caller.
@@ -1661,7 +1731,7 @@ xfs_dir2_node_addname_int(
 		/*
 		 * If just checking, we succeeded.
 		 */
-		if (args->justcheck) {
+		if (args->op_flags & XFS_DA_OP_JUSTCHECK) {
 			if ((fblk == NULL || fblk->bp == NULL) && fbp != NULL)
 				xfs_da_buf_done(fbp);
 			return 0;
@@ -1767,6 +1837,14 @@ xfs_dir2_node_lookup(
 	error = xfs_da_node_lookup_int(state, &rval);
 	if (error)
 		rval = error;
+	else if (rval == ENOENT && args->cmpresult == XFS_CMP_CASE) {
+		/* If a CI match, dup the actual name and return EEXIST */
+		xfs_dir2_data_entry_t	*dep;
+
+		dep = (xfs_dir2_data_entry_t *)((char *)state->extrablk.bp->
+						data + state->extrablk.index);
+		rval = xfs_dir_cilookup_result(args, dep->name, dep->namelen);
+	}
 	/*
 	 * Release the btree blocks and leaf block.
 	 */
@@ -1810,9 +1888,8 @@ xfs_dir2_node_removename(
 	 * Look up the entry we're deleting, set up the cursor.
 	 */
 	error = xfs_da_node_lookup_int(state, &rval);
-	if (error) {
+	if (error)
 		rval = error;
-	}
 	/*
 	 * Didn't find it, upper layer screwed up.
 	 */
@@ -1829,9 +1906,8 @@ xfs_dir2_node_removename(
 	 */
 	error = xfs_dir2_leafn_remove(args, blk->bp, blk->index,
 		&state->extrablk, &rval);
-	if (error) {
+	if (error)
 		return error;
-	}
 	/*
 	 * Fix the hash values up the btree.
 	 */

fs/xfs/xfs_dir2_sf.c

@@ -255,7 +255,7 @@ xfs_dir2_block_to_sf(
 	xfs_dir2_sf_check(args);
 out:
 	xfs_trans_log_inode(args->trans, dp, logflags);
-	kmem_free(block, mp->m_dirblksize);
+	kmem_free(block);
 	return error;
 }
 
@@ -332,7 +332,7 @@ xfs_dir2_sf_addname(
 		/*
 		 * Just checking or no space reservation, it doesn't fit.
 		 */
-		if (args->justcheck || args->total == 0)
+		if ((args->op_flags & XFS_DA_OP_JUSTCHECK) || args->total == 0)
 			return XFS_ERROR(ENOSPC);
 		/*
 		 * Convert to block form then add the name.
@@ -345,7 +345,7 @@ xfs_dir2_sf_addname(
 	/*
 	 * Just checking, it fits.
 	 */
-	if (args->justcheck)
+	if (args->op_flags & XFS_DA_OP_JUSTCHECK)
 		return 0;
 	/*
 	 * Do it the easy way - just add it at the end.
@@ -512,7 +512,7 @@ xfs_dir2_sf_addname_hard(
 		sfep = xfs_dir2_sf_nextentry(sfp, sfep);
 		memcpy(sfep, oldsfep, old_isize - nbytes);
 	}
-	kmem_free(buf, old_isize);
+	kmem_free(buf);
 	dp->i_d.di_size = new_isize;
 	xfs_dir2_sf_check(args);
 }
@@ -812,8 +812,11 @@ xfs_dir2_sf_lookup(
 {
 	xfs_inode_t		*dp;		/* incore directory inode */
 	int			i;		/* entry index */
+	int			error;
 	xfs_dir2_sf_entry_t	*sfep;		/* shortform directory entry */
 	xfs_dir2_sf_t		*sfp;		/* shortform structure */
+	enum xfs_dacmp		cmp;		/* comparison result */
+	xfs_dir2_sf_entry_t	*ci_sfep;	/* case-insens. entry */
 
 	xfs_dir2_trace_args("sf_lookup", args);
 	xfs_dir2_sf_check(args);
@@ -836,6 +839,7 @@ xfs_dir2_sf_lookup(
 	 */
 	if (args->namelen == 1 && args->name[0] == '.') {
 		args->inumber = dp->i_ino;
+		args->cmpresult = XFS_CMP_EXACT;
 		return XFS_ERROR(EEXIST);
 	}
 	/*
@@ -844,28 +848,41 @@ xfs_dir2_sf_lookup(
 	if (args->namelen == 2 &&
 	    args->name[0] == '.' && args->name[1] == '.') {
 		args->inumber = xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent);
+		args->cmpresult = XFS_CMP_EXACT;
 		return XFS_ERROR(EEXIST);
 	}
 	/*
 	 * Loop over all the entries trying to match ours.
 	 */
-	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
-	     i < sfp->hdr.count;
-	     i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
-		if (sfep->namelen == args->namelen &&
-		    sfep->name[0] == args->name[0] &&
-		    memcmp(args->name, sfep->name, args->namelen) == 0) {
-			args->inumber =
-				xfs_dir2_sf_get_inumber(sfp,
-					xfs_dir2_sf_inumberp(sfep));
-			return XFS_ERROR(EEXIST);
+	ci_sfep = NULL;
+	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->hdr.count;
+				i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+		/*
+		 * Compare name and if it's an exact match, return the inode
+		 * number. If it's the first case-insensitive match, store the
+		 * inode number and continue looking for an exact match.
+		 */
+		cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name,
+								sfep->namelen);
+		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
+			args->cmpresult = cmp;
+			args->inumber = xfs_dir2_sf_get_inumber(sfp,
+						xfs_dir2_sf_inumberp(sfep));
+			if (cmp == XFS_CMP_EXACT)
+				return XFS_ERROR(EEXIST);
+			ci_sfep = sfep;
 		}
 	}
+	ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
 	/*
-	 * Didn't find it.
+	 * Here, we can only be doing a lookup (not a rename or replace).
+	 * If a case-insensitive match was not found, return ENOENT.
 	 */
-	ASSERT(args->oknoent);
-	return XFS_ERROR(ENOENT);
+	if (!ci_sfep)
+		return XFS_ERROR(ENOENT);
+	/* otherwise process the CI match as required by the caller */
+	error = xfs_dir_cilookup_result(args, ci_sfep->name, ci_sfep->namelen);
+	return XFS_ERROR(error);
 }
 
 /*
@@ -904,24 +921,21 @@ xfs_dir2_sf_removename(
 	 * Loop over the old directory entries.
 	 * Find the one we're deleting.
 	 */
-	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
-	     i < sfp->hdr.count;
-	     i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
-		if (sfep->namelen == args->namelen &&
-		    sfep->name[0] == args->name[0] &&
-		    memcmp(sfep->name, args->name, args->namelen) == 0) {
+	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->hdr.count;
+				i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+		if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
+								XFS_CMP_EXACT) {
 			ASSERT(xfs_dir2_sf_get_inumber(sfp,
-					xfs_dir2_sf_inumberp(sfep)) ==
-				args->inumber);
+						xfs_dir2_sf_inumberp(sfep)) ==
+								args->inumber);
 			break;
 		}
 	}
 	/*
 	 * Didn't find it.
 	 */
-	if (i == sfp->hdr.count) {
+	if (i == sfp->hdr.count)
 		return XFS_ERROR(ENOENT);
-	}
 	/*
 	 * Calculate sizes.
 	 */
@@ -1042,11 +1056,10 @@ xfs_dir2_sf_replace(
 	 */
 	else {
 		for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
-		     i < sfp->hdr.count;
-		     i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
-			if (sfep->namelen == args->namelen &&
-			    sfep->name[0] == args->name[0] &&
-			    memcmp(args->name, sfep->name, args->namelen) == 0) {
+				i < sfp->hdr.count;
+				i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+			if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
+								XFS_CMP_EXACT) {
 #if XFS_BIG_INUMS || defined(DEBUG)
 				ino = xfs_dir2_sf_get_inumber(sfp,
 					xfs_dir2_sf_inumberp(sfep));
@@ -1061,7 +1074,7 @@ xfs_dir2_sf_replace(
 		 * Didn't find it.
 		 */
 		if (i == sfp->hdr.count) {
-			ASSERT(args->oknoent);
+			ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
 #if XFS_BIG_INUMS
 			if (i8elevated)
 				xfs_dir2_sf_toino4(args);
@@ -1174,7 +1187,7 @@ xfs_dir2_sf_toino4(
 	/*
 	 * Clean up the inode.
 	 */
-	kmem_free(buf, oldsize);
+	kmem_free(buf);
 	dp->i_d.di_size = newsize;
 	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
 }
@@ -1251,7 +1264,7 @@ xfs_dir2_sf_toino8(
 	/*
 	 * Clean up the inode.
 	 */
-	kmem_free(buf, oldsize);
+	kmem_free(buf);
 	dp->i_d.di_size = newsize;
 	xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA);
 }

fs/xfs/xfs_dir2_sf.h

@@ -62,7 +62,7 @@ typedef union {
  * Normalized offset (in a data block) of the entry, really xfs_dir2_data_off_t.
  * Only need 16 bits, this is the byte offset into the single block form.
  */
-typedef struct { __uint8_t i[2]; } xfs_dir2_sf_off_t;
+typedef struct { __uint8_t i[2]; } __arch_pack xfs_dir2_sf_off_t;
 
 /*
  * The parent directory has a dedicated field, and the self-pointer must
@@ -76,14 +76,14 @@ typedef struct xfs_dir2_sf_hdr {
 	__uint8_t		count;		/* count of entries */
 	__uint8_t		i8count;	/* count of 8-byte inode #s */
 	xfs_dir2_inou_t		parent;		/* parent dir inode number */
-} xfs_dir2_sf_hdr_t;
+} __arch_pack xfs_dir2_sf_hdr_t;
 
 typedef struct xfs_dir2_sf_entry {
 	__uint8_t		namelen;	/* actual name length */
 	xfs_dir2_sf_off_t	offset;		/* saved offset */
 	__uint8_t		name[1];	/* name, variable size */
 	xfs_dir2_inou_t		inumber;	/* inode number, var. offset */
-} xfs_dir2_sf_entry_t;
+} __arch_pack xfs_dir2_sf_entry_t; 
 
 typedef struct xfs_dir2_sf {
 	xfs_dir2_sf_hdr_t	hdr;		/* shortform header */

fs/xfs/xfs_dir2_trace.c

@@ -85,7 +85,8 @@ xfs_dir2_trace_args(
 		(void *)((unsigned long)(args->inumber >> 32)),
 		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
 		(void *)args->dp, (void *)args->trans,
-		(void *)(unsigned long)args->justcheck, NULL, NULL);
+		(void *)(unsigned long)(args->op_flags & XFS_DA_OP_JUSTCHECK),
+		NULL, NULL);
 }
 
 void
@@ -100,7 +101,7 @@ xfs_dir2_trace_args_b(
 		(void *)((unsigned long)(args->inumber >> 32)),
 		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
 		(void *)args->dp, (void *)args->trans,
-		(void *)(unsigned long)args->justcheck,
+		(void *)(unsigned long)(args->op_flags & XFS_DA_OP_JUSTCHECK),
 		(void *)(bp ? bp->bps[0] : NULL), NULL);
 }
 
@@ -117,7 +118,7 @@ xfs_dir2_trace_args_bb(
 		(void *)((unsigned long)(args->inumber >> 32)),
 		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
 		(void *)args->dp, (void *)args->trans,
-		(void *)(unsigned long)args->justcheck,
+		(void *)(unsigned long)(args->op_flags & XFS_DA_OP_JUSTCHECK),
 		(void *)(lbp ? lbp->bps[0] : NULL),
 		(void *)(dbp ? dbp->bps[0] : NULL));
 }
@@ -157,8 +158,8 @@ xfs_dir2_trace_args_db(
 		(void *)((unsigned long)(args->inumber >> 32)),
 		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
 		(void *)args->dp, (void *)args->trans,
-		(void *)(unsigned long)args->justcheck, (void *)(long)db,
-		(void *)dbp);
+		(void *)(unsigned long)(args->op_flags & XFS_DA_OP_JUSTCHECK),
+		(void *)(long)db, (void *)dbp);
 }
 
 void
@@ -173,7 +174,7 @@ xfs_dir2_trace_args_i(
 		(void *)((unsigned long)(args->inumber >> 32)),
 		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
 		(void *)args->dp, (void *)args->trans,
-		(void *)(unsigned long)args->justcheck,
+		(void *)(unsigned long)(args->op_flags & XFS_DA_OP_JUSTCHECK),
 		(void *)((unsigned long)(i >> 32)),
 		(void *)((unsigned long)(i & 0xFFFFFFFF)));
 }
@@ -190,7 +191,8 @@ xfs_dir2_trace_args_s(
 		(void *)((unsigned long)(args->inumber >> 32)),
 		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
 		(void *)args->dp, (void *)args->trans,
-		(void *)(unsigned long)args->justcheck, (void *)(long)s, NULL);
+		(void *)(unsigned long)(args->op_flags & XFS_DA_OP_JUSTCHECK),
+		(void *)(long)s, NULL);
 }
 
 void
@@ -208,7 +210,7 @@ xfs_dir2_trace_args_sb(
 		(void *)((unsigned long)(args->inumber >> 32)),
 		(void *)((unsigned long)(args->inumber & 0xFFFFFFFF)),
 		(void *)args->dp, (void *)args->trans,
-		(void *)(unsigned long)args->justcheck, (void *)(long)s,
-		(void *)dbp);
+		(void *)(unsigned long)(args->op_flags & XFS_DA_OP_JUSTCHECK),
+		(void *)(long)s, (void *)dbp);
 }
 #endif	/* XFS_DIR2_TRACE */

fs/xfs/xfs_dmapi.h

@@ -166,6 +166,6 @@ typedef enum {
 
 #define FILP_DELAY_FLAG(filp) ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) ? \
 			DM_FLAGS_NDELAY : 0)
-#define AT_DELAY_FLAG(f) ((f&ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
+#define AT_DELAY_FLAG(f) ((f & XFS_ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
 
 #endif  /* __XFS_DMAPI_H__ */

fs/xfs/xfs_error.c

@@ -66,14 +66,6 @@ int	xfs_etest[XFS_NUM_INJECT_ERROR];
 int64_t	xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
 char *	xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
 
-void
-xfs_error_test_init(void)
-{
-	memset(xfs_etest, 0, sizeof(xfs_etest));
-	memset(xfs_etest_fsid, 0, sizeof(xfs_etest_fsid));
-	memset(xfs_etest_fsname, 0, sizeof(xfs_etest_fsname));
-}
-
 int
 xfs_error_test(int error_tag, int *fsidp, char *expression,
 	       int line, char *file, unsigned long randfactor)
@@ -150,8 +142,7 @@ xfs_errortag_clearall(xfs_mount_t *mp, int loud)
 				xfs_etest[i]);
 			xfs_etest[i] = 0;
 			xfs_etest_fsid[i] = 0LL;
-			kmem_free(xfs_etest_fsname[i],
-				  strlen(xfs_etest_fsname[i]) + 1);
+			kmem_free(xfs_etest_fsname[i]);
 			xfs_etest_fsname[i] = NULL;
 		}
 	}
@@ -175,7 +166,7 @@ xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap)
 		newfmt = kmem_alloc(len, KM_SLEEP);
 		sprintf(newfmt, "Filesystem \"%s\": %s", mp->m_fsname, fmt);
 		icmn_err(level, newfmt, ap);
-		kmem_free(newfmt, len);
+		kmem_free(newfmt);
 	} else {
 		icmn_err(level, fmt, ap);
 	}

fs/xfs/xfs_error.h

@@ -127,7 +127,6 @@ extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp,
 
 #if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
 extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
-extern void xfs_error_test_init(void);
 
 #define	XFS_NUM_INJECT_ERROR				10
 

fs/xfs/xfs_extfree_item.c

@@ -41,8 +41,7 @@ xfs_efi_item_free(xfs_efi_log_item_t *efip)
 	int nexts = efip->efi_format.efi_nextents;
 
 	if (nexts > XFS_EFI_MAX_FAST_EXTENTS) {
-		kmem_free(efip, sizeof(xfs_efi_log_item_t) +
-				(nexts - 1) * sizeof(xfs_extent_t));
+		kmem_free(efip);
 	} else {
 		kmem_zone_free(xfs_efi_zone, efip);
 	}
@@ -374,8 +373,7 @@ xfs_efd_item_free(xfs_efd_log_item_t *efdp)
 	int nexts = efdp->efd_format.efd_nextents;
 
 	if (nexts > XFS_EFD_MAX_FAST_EXTENTS) {
-		kmem_free(efdp, sizeof(xfs_efd_log_item_t) +
-				(nexts - 1) * sizeof(xfs_extent_t));
+		kmem_free(efdp);
 	} else {
 		kmem_zone_free(xfs_efd_zone, efdp);
 	}

fs/xfs/xfs_filestream.c

@@ -397,10 +397,12 @@ int
 xfs_filestream_init(void)
 {
 	item_zone = kmem_zone_init(sizeof(fstrm_item_t), "fstrm_item");
+	if (!item_zone)
+		return -ENOMEM;
 #ifdef XFS_FILESTREAMS_TRACE
 	xfs_filestreams_trace_buf = ktrace_alloc(XFS_FSTRM_KTRACE_SIZE, KM_SLEEP);
 #endif
-	return item_zone ? 0 : -ENOMEM;
+	return 0;
 }
 
 /*

fs/xfs/xfs_fs.h

@@ -239,6 +239,7 @@ typedef struct xfs_fsop_resblks {
 #define XFS_FSOP_GEOM_FLAGS_LOGV2	0x0100	/* log format version 2	*/
 #define XFS_FSOP_GEOM_FLAGS_SECTOR	0x0200	/* sector sizes >1BB	*/
 #define XFS_FSOP_GEOM_FLAGS_ATTR2	0x0400	/* inline attributes rework */
+#define XFS_FSOP_GEOM_FLAGS_DIRV2CI	0x1000	/* ASCII only CI names */
 #define XFS_FSOP_GEOM_FLAGS_LAZYSB	0x4000	/* lazy superblock counters */
 
 
@@ -371,6 +372,9 @@ typedef struct xfs_fsop_attrlist_handlereq {
 
 typedef struct xfs_attr_multiop {
 	__u32		am_opcode;
+#define ATTR_OP_GET	1	/* return the indicated attr's value */
+#define ATTR_OP_SET	2	/* set/create the indicated attr/value pair */
+#define ATTR_OP_REMOVE	3	/* remove the indicated attr */
 	__s32		am_error;
 	void		__user *am_attrname;
 	void		__user *am_attrvalue;

fs/xfs/xfs_fsops.c

@@ -95,6 +95,8 @@ xfs_fs_geometry(
 				XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) |
 			(xfs_sb_version_hassector(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_SECTOR : 0) |
+			(xfs_sb_version_hasasciici(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_DIRV2CI : 0) |
 			(xfs_sb_version_haslazysbcount(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_LAZYSB : 0) |
 			(xfs_sb_version_hasattr2(&mp->m_sb) ?
@@ -625,7 +627,7 @@ xfs_fs_goingdown(
 			xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
 			thaw_bdev(sb->s_bdev, sb);
 		}
-	
+
 		break;
 	}
 	case XFS_FSOP_GOING_FLAGS_LOGFLUSH:

fs/xfs/xfs_inode.c

@@ -1763,67 +1763,6 @@ xfs_itruncate_finish(
 	return 0;
 }
 
-
-/*
- * xfs_igrow_start
- *
- * Do the first part of growing a file: zero any data in the last
- * block that is beyond the old EOF.  We need to do this before
- * the inode is joined to the transaction to modify the i_size.
- * That way we can drop the inode lock and call into the buffer
- * cache to get the buffer mapping the EOF.
- */
-int
-xfs_igrow_start(
-	xfs_inode_t	*ip,
-	xfs_fsize_t	new_size,
-	cred_t		*credp)
-{
-	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
-	ASSERT(new_size > ip->i_size);
-
-	/*
-	 * Zero any pages that may have been created by
-	 * xfs_write_file() beyond the end of the file
-	 * and any blocks between the old and new file sizes.
-	 */
-	return xfs_zero_eof(ip, new_size, ip->i_size);
-}
-
-/*
- * xfs_igrow_finish
- *
- * This routine is called to extend the size of a file.
- * The inode must have both the iolock and the ilock locked
- * for update and it must be a part of the current transaction.
- * The xfs_igrow_start() function must have been called previously.
- * If the change_flag is not zero, the inode change timestamp will
- * be updated.
- */
-void
-xfs_igrow_finish(
-	xfs_trans_t	*tp,
-	xfs_inode_t	*ip,
-	xfs_fsize_t	new_size,
-	int		change_flag)
-{
-	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
-	ASSERT(ip->i_transp == tp);
-	ASSERT(new_size > ip->i_size);
-
-	/*
-	 * Update the file size.  Update the inode change timestamp
-	 * if change_flag set.
-	 */
-	ip->i_d.di_size = new_size;
-	ip->i_size = new_size;
-	if (change_flag)
-		xfs_ichgtime(ip, XFS_ICHGTIME_CHG);
-	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-
-}
-
-
 /*
  * This is called when the inode's link count goes to 0.
  * We place the on-disk inode on a list in the AGI.  It
@@ -2258,7 +2197,7 @@ xfs_ifree_cluster(
 		xfs_trans_binval(tp, bp);
 	}
 
-	kmem_free(ip_found, ninodes * sizeof(xfs_inode_t *));
+	kmem_free(ip_found);
 	xfs_put_perag(mp, pag);
 }
 
@@ -2470,7 +2409,7 @@ xfs_iroot_realloc(
 						     (int)new_size);
 		memcpy(np, op, new_max * (uint)sizeof(xfs_dfsbno_t));
 	}
-	kmem_free(ifp->if_broot, ifp->if_broot_bytes);
+	kmem_free(ifp->if_broot);
 	ifp->if_broot = new_broot;
 	ifp->if_broot_bytes = (int)new_size;
 	ASSERT(ifp->if_broot_bytes <=
@@ -2514,7 +2453,7 @@ xfs_idata_realloc(
 
 	if (new_size == 0) {
 		if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
-			kmem_free(ifp->if_u1.if_data, ifp->if_real_bytes);
+			kmem_free(ifp->if_u1.if_data);
 		}
 		ifp->if_u1.if_data = NULL;
 		real_size = 0;
@@ -2529,7 +2468,7 @@ xfs_idata_realloc(
 			ASSERT(ifp->if_real_bytes != 0);
 			memcpy(ifp->if_u2.if_inline_data, ifp->if_u1.if_data,
 			      new_size);
-			kmem_free(ifp->if_u1.if_data, ifp->if_real_bytes);
+			kmem_free(ifp->if_u1.if_data);
 			ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
 		}
 		real_size = 0;
@@ -2636,7 +2575,7 @@ xfs_idestroy_fork(
 
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	if (ifp->if_broot != NULL) {
-		kmem_free(ifp->if_broot, ifp->if_broot_bytes);
+		kmem_free(ifp->if_broot);
 		ifp->if_broot = NULL;
 	}
 
@@ -2650,7 +2589,7 @@ xfs_idestroy_fork(
 		if ((ifp->if_u1.if_data != ifp->if_u2.if_inline_data) &&
 		    (ifp->if_u1.if_data != NULL)) {
 			ASSERT(ifp->if_real_bytes != 0);
-			kmem_free(ifp->if_u1.if_data, ifp->if_real_bytes);
+			kmem_free(ifp->if_u1.if_data);
 			ifp->if_u1.if_data = NULL;
 			ifp->if_real_bytes = 0;
 		}
@@ -3058,7 +2997,7 @@ xfs_iflush_cluster(
 
 out_free:
 	read_unlock(&pag->pag_ici_lock);
-	kmem_free(ilist, ilist_size);
+	kmem_free(ilist);
 	return 0;
 
 
@@ -3102,7 +3041,7 @@ cluster_corrupt_out:
 	 * Unlocks the flush lock
 	 */
 	xfs_iflush_abort(iq);
-	kmem_free(ilist, ilist_size);
+	kmem_free(ilist);
 	return XFS_ERROR(EFSCORRUPTED);
 }
 
@@ -3143,8 +3082,6 @@ xfs_iflush(
 	 * flush lock and do nothing.
 	 */
 	if (xfs_inode_clean(ip)) {
-		ASSERT((iip != NULL) ?
-			 !(iip->ili_item.li_flags & XFS_LI_IN_AIL) : 1);
 		xfs_ifunlock(ip);
 		return 0;
 	}
@@ -3836,7 +3773,7 @@ xfs_iext_add_indirect_multi(
 			erp = xfs_iext_irec_new(ifp, erp_idx);
 		}
 		memmove(&erp->er_extbuf[i], nex2_ep, byte_diff);
-		kmem_free(nex2_ep, byte_diff);
+		kmem_free(nex2_ep);
 		erp->er_extcount += nex2;
 		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, nex2);
 	}
@@ -4112,7 +4049,7 @@ xfs_iext_direct_to_inline(
 	 */
 	memcpy(ifp->if_u2.if_inline_ext, ifp->if_u1.if_extents,
 		nextents * sizeof(xfs_bmbt_rec_t));
-	kmem_free(ifp->if_u1.if_extents, ifp->if_real_bytes);
+	kmem_free(ifp->if_u1.if_extents);
 	ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
 	ifp->if_real_bytes = 0;
 }
@@ -4186,7 +4123,7 @@ xfs_iext_indirect_to_direct(
 	ASSERT(ifp->if_real_bytes == XFS_IEXT_BUFSZ);
 
 	ep = ifp->if_u1.if_ext_irec->er_extbuf;
-	kmem_free(ifp->if_u1.if_ext_irec, sizeof(xfs_ext_irec_t));
+	kmem_free(ifp->if_u1.if_ext_irec);
 	ifp->if_flags &= ~XFS_IFEXTIREC;
 	ifp->if_u1.if_extents = ep;
 	ifp->if_bytes = size;
@@ -4212,7 +4149,7 @@ xfs_iext_destroy(
 		}
 		ifp->if_flags &= ~XFS_IFEXTIREC;
 	} else if (ifp->if_real_bytes) {
-		kmem_free(ifp->if_u1.if_extents, ifp->if_real_bytes);
+		kmem_free(ifp->if_u1.if_extents);
 	} else if (ifp->if_bytes) {
 		memset(ifp->if_u2.if_inline_ext, 0, XFS_INLINE_EXTS *
 			sizeof(xfs_bmbt_rec_t));
@@ -4483,7 +4420,7 @@ xfs_iext_irec_remove(
 	if (erp->er_extbuf) {
 		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1,
 			-erp->er_extcount);
-		kmem_free(erp->er_extbuf, XFS_IEXT_BUFSZ);
+		kmem_free(erp->er_extbuf);
 	}
 	/* Compact extent records */
 	erp = ifp->if_u1.if_ext_irec;
@@ -4501,8 +4438,7 @@ xfs_iext_irec_remove(
 		xfs_iext_realloc_indirect(ifp,
 			nlists * sizeof(xfs_ext_irec_t));
 	} else {
-		kmem_free(ifp->if_u1.if_ext_irec,
-			sizeof(xfs_ext_irec_t));
+		kmem_free(ifp->if_u1.if_ext_irec);
 	}
 	ifp->if_real_bytes = nlists * XFS_IEXT_BUFSZ;
 }
@@ -4571,7 +4507,7 @@ xfs_iext_irec_compact_pages(
 			 * so er_extoffs don't get modified in
 			 * xfs_iext_irec_remove.
 			 */
-			kmem_free(erp_next->er_extbuf, XFS_IEXT_BUFSZ);
+			kmem_free(erp_next->er_extbuf);
 			erp_next->er_extbuf = NULL;
 			xfs_iext_irec_remove(ifp, erp_idx + 1);
 			nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
@@ -4596,40 +4532,63 @@ xfs_iext_irec_compact_full(
 	int		nlists;			/* number of irec's (ex lists) */
 
 	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
+
 	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
 	erp = ifp->if_u1.if_ext_irec;
 	ep = &erp->er_extbuf[erp->er_extcount];
 	erp_next = erp + 1;
 	ep_next = erp_next->er_extbuf;
+
 	while (erp_idx < nlists - 1) {
+		/*
+		 * Check how many extent records are available in this irec.
+		 * If there is none skip the whole exercise.
+		 */
 		ext_avail = XFS_LINEAR_EXTS - erp->er_extcount;
-		ext_diff = MIN(ext_avail, erp_next->er_extcount);
-		memcpy(ep, ep_next, ext_diff * sizeof(xfs_bmbt_rec_t));
-		erp->er_extcount += ext_diff;
-		erp_next->er_extcount -= ext_diff;
-		/* Remove next page */
-		if (erp_next->er_extcount == 0) {
+		if (ext_avail) {
+
 			/*
-			 * Free page before removing extent record
-			 * so er_extoffs don't get modified in
-			 * xfs_iext_irec_remove.
+			 * Copy over as many as possible extent records into
+			 * the previous page.
 			 */
-			kmem_free(erp_next->er_extbuf,
-				erp_next->er_extcount * sizeof(xfs_bmbt_rec_t));
-			erp_next->er_extbuf = NULL;
-			xfs_iext_irec_remove(ifp, erp_idx + 1);
-			erp = &ifp->if_u1.if_ext_irec[erp_idx];
-			nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-		/* Update next page */
-		} else {
-			/* Move rest of page up to become next new page */
-			memmove(erp_next->er_extbuf, ep_next,
-				erp_next->er_extcount * sizeof(xfs_bmbt_rec_t));
-			ep_next = erp_next->er_extbuf;
-			memset(&ep_next[erp_next->er_extcount], 0,
-				(XFS_LINEAR_EXTS - erp_next->er_extcount) *
-				sizeof(xfs_bmbt_rec_t));
+			ext_diff = MIN(ext_avail, erp_next->er_extcount);
+			memcpy(ep, ep_next, ext_diff * sizeof(xfs_bmbt_rec_t));
+			erp->er_extcount += ext_diff;
+			erp_next->er_extcount -= ext_diff;
+
+			/*
+			 * If the next irec is empty now we can simply
+			 * remove it.
+			 */
+			if (erp_next->er_extcount == 0) {
+				/*
+				 * Free page before removing extent record
+				 * so er_extoffs don't get modified in
+				 * xfs_iext_irec_remove.
+				 */
+				kmem_free(erp_next->er_extbuf);
+				erp_next->er_extbuf = NULL;
+				xfs_iext_irec_remove(ifp, erp_idx + 1);
+				erp = &ifp->if_u1.if_ext_irec[erp_idx];
+				nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
+
+			/*
+			 * If the next irec is not empty move up the content
+			 * that has not been copied to the previous page to
+			 * the beggining of this one.
+			 */
+			} else {
+				memmove(erp_next->er_extbuf, &ep_next[ext_diff],
+					erp_next->er_extcount *
+					sizeof(xfs_bmbt_rec_t));
+				ep_next = erp_next->er_extbuf;
+				memset(&ep_next[erp_next->er_extcount], 0,
+					(XFS_LINEAR_EXTS -
+						erp_next->er_extcount) *
+					sizeof(xfs_bmbt_rec_t));
+			}
 		}
+
 		if (erp->er_extcount == XFS_LINEAR_EXTS) {
 			erp_idx++;
 			if (erp_idx < nlists)

fs/xfs/xfs_inode.h

@@ -507,9 +507,6 @@ int		xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
 int		xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
 				     xfs_fsize_t, int, int);
 int		xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
-int		xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *);
-void		xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *,
-				 xfs_fsize_t, int);
 
 void		xfs_idestroy_fork(xfs_inode_t *, int);
 void		xfs_idestroy(xfs_inode_t *);

fs/xfs/xfs_inode_item.c

@@ -686,7 +686,7 @@ xfs_inode_item_unlock(
 		ASSERT(ip->i_d.di_nextents > 0);
 		ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_DEXT);
 		ASSERT(ip->i_df.if_bytes > 0);
-		kmem_free(iip->ili_extents_buf, ip->i_df.if_bytes);
+		kmem_free(iip->ili_extents_buf);
 		iip->ili_extents_buf = NULL;
 	}
 	if (iip->ili_aextents_buf != NULL) {
@@ -694,7 +694,7 @@ xfs_inode_item_unlock(
 		ASSERT(ip->i_d.di_anextents > 0);
 		ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_AEXT);
 		ASSERT(ip->i_afp->if_bytes > 0);
-		kmem_free(iip->ili_aextents_buf, ip->i_afp->if_bytes);
+		kmem_free(iip->ili_aextents_buf);
 		iip->ili_aextents_buf = NULL;
 	}
 
@@ -957,8 +957,7 @@ xfs_inode_item_destroy(
 {
 #ifdef XFS_TRANS_DEBUG
 	if (ip->i_itemp->ili_root_size != 0) {
-		kmem_free(ip->i_itemp->ili_orig_root,
-			  ip->i_itemp->ili_root_size);
+		kmem_free(ip->i_itemp->ili_orig_root);
 	}
 #endif
 	kmem_zone_free(xfs_ili_zone, ip->i_itemp);

fs/xfs/xfs_iomap.c

@@ -889,6 +889,16 @@ xfs_iomap_write_unwritten(
 	count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
 	count_fsb = (xfs_filblks_t)(count_fsb - offset_fsb);
 
+	/*
+	 * Reserve enough blocks in this transaction for two complete extent
+	 * btree splits.  We may be converting the middle part of an unwritten
+	 * extent and in this case we will insert two new extents in the btree
+	 * each of which could cause a full split.
+	 *
+	 * This reservation amount will be used in the first call to
+	 * xfs_bmbt_split() to select an AG with enough space to satisfy the
+	 * rest of the operation.
+	 */
 	resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0) << 1;
 
 	do {

fs/xfs/xfs_itable.c

@@ -257,7 +257,7 @@ xfs_bulkstat_one(
 		*ubused = error;
 
  out_free:
-	kmem_free(buf, sizeof(*buf));
+	kmem_free(buf);
 	return error;
 }
 
@@ -708,7 +708,7 @@ xfs_bulkstat(
 	/*
 	 * Done, we're either out of filesystem or space to put the data.
 	 */
-	kmem_free(irbuf, irbsize);
+	kmem_free(irbuf);
 	*ubcountp = ubelem;
 	/*
 	 * Found some inodes, return them now and return the error next time.
@@ -914,7 +914,7 @@ xfs_inumbers(
 		}
 		*lastino = XFS_AGINO_TO_INO(mp, agno, agino);
 	}
-	kmem_free(buffer, bcount * sizeof(*buffer));
+	kmem_free(buffer);
 	if (cur)
 		xfs_btree_del_cursor(cur, (error ? XFS_BTREE_ERROR :
 					   XFS_BTREE_NOERROR));

fs/xfs/xfs_log.c

@@ -226,20 +226,24 @@ xlog_grant_sub_space(struct log *log, int bytes)
 static void
 xlog_grant_add_space_write(struct log *log, int bytes)
 {
-	log->l_grant_write_bytes += bytes;
-	if (log->l_grant_write_bytes > log->l_logsize) {
-		log->l_grant_write_bytes -= log->l_logsize;
+	int tmp = log->l_logsize - log->l_grant_write_bytes;
+	if (tmp > bytes)
+		log->l_grant_write_bytes += bytes;
+	else {
 		log->l_grant_write_cycle++;
+		log->l_grant_write_bytes = bytes - tmp;
 	}
 }
 
 static void
 xlog_grant_add_space_reserve(struct log *log, int bytes)
 {
-	log->l_grant_reserve_bytes += bytes;
-	if (log->l_grant_reserve_bytes > log->l_logsize) {
-		log->l_grant_reserve_bytes -= log->l_logsize;
+	int tmp = log->l_logsize - log->l_grant_reserve_bytes;
+	if (tmp > bytes)
+		log->l_grant_reserve_bytes += bytes;
+	else {
 		log->l_grant_reserve_cycle++;
+		log->l_grant_reserve_bytes = bytes - tmp;
 	}
 }
 
@@ -1228,7 +1232,7 @@ xlog_alloc_log(xfs_mount_t	*mp,
 
 	spin_lock_init(&log->l_icloglock);
 	spin_lock_init(&log->l_grant_lock);
-	initnsema(&log->l_flushsema, 0, "ic-flush");
+	sv_init(&log->l_flush_wait, 0, "flush_wait");
 
 	/* log record size must be multiple of BBSIZE; see xlog_rec_header_t */
 	ASSERT((XFS_BUF_SIZE(bp) & BBMASK) == 0);
@@ -1570,10 +1574,9 @@ xlog_dealloc_log(xlog_t *log)
 		}
 #endif
 		next_iclog = iclog->ic_next;
-		kmem_free(iclog, sizeof(xlog_in_core_t));
+		kmem_free(iclog);
 		iclog = next_iclog;
 	}
-	freesema(&log->l_flushsema);
 	spinlock_destroy(&log->l_icloglock);
 	spinlock_destroy(&log->l_grant_lock);
 
@@ -1587,7 +1590,7 @@ xlog_dealloc_log(xlog_t *log)
 	}
 #endif
 	log->l_mp->m_log = NULL;
-	kmem_free(log, sizeof(xlog_t));
+	kmem_free(log);
 }	/* xlog_dealloc_log */
 
 /*
@@ -2097,6 +2100,7 @@ xlog_state_do_callback(
 	int		   funcdidcallbacks; /* flag: function did callbacks */
 	int		   repeats;	/* for issuing console warnings if
 					 * looping too many times */
+	int		   wake = 0;
 
 	spin_lock(&log->l_icloglock);
 	first_iclog = iclog = log->l_iclog;
@@ -2278,15 +2282,13 @@ xlog_state_do_callback(
 	}
 #endif
 
-	flushcnt = 0;
-	if (log->l_iclog->ic_state & (XLOG_STATE_ACTIVE|XLOG_STATE_IOERROR)) {
-		flushcnt = log->l_flushcnt;
-		log->l_flushcnt = 0;
-	}
+	if (log->l_iclog->ic_state & (XLOG_STATE_ACTIVE|XLOG_STATE_IOERROR))
+		wake = 1;
 	spin_unlock(&log->l_icloglock);
-	while (flushcnt--)
-		vsema(&log->l_flushsema);
-}	/* xlog_state_do_callback */
+
+	if (wake)
+		sv_broadcast(&log->l_flush_wait);
+}
 
 
 /*
@@ -2384,16 +2386,15 @@ restart:
 	}
 
 	iclog = log->l_iclog;
-	if (! (iclog->ic_state == XLOG_STATE_ACTIVE)) {
-		log->l_flushcnt++;
-		spin_unlock(&log->l_icloglock);
+	if (iclog->ic_state != XLOG_STATE_ACTIVE) {
 		xlog_trace_iclog(iclog, XLOG_TRACE_SLEEP_FLUSH);
 		XFS_STATS_INC(xs_log_noiclogs);
-		/* Ensure that log writes happen */
-		psema(&log->l_flushsema, PINOD);
+
+		/* Wait for log writes to have flushed */
+		sv_wait(&log->l_flush_wait, 0, &log->l_icloglock, 0);
 		goto restart;
 	}
-	ASSERT(iclog->ic_state == XLOG_STATE_ACTIVE);
+
 	head = &iclog->ic_header;
 
 	atomic_inc(&iclog->ic_refcnt);	/* prevents sync */

fs/xfs/xfs_log_priv.h

@@ -423,10 +423,8 @@ typedef struct log {
 	int			l_logBBsize;    /* size of log in BB chunks */
 
 	/* The following block of fields are changed while holding icloglock */
-	sema_t			l_flushsema ____cacheline_aligned_in_smp;
-						/* iclog flushing semaphore */
-	int			l_flushcnt;	/* # of procs waiting on this
-						 * sema */
+	sv_t			l_flush_wait ____cacheline_aligned_in_smp;
+						/* waiting for iclog flush */
 	int			l_covered_state;/* state of "covering disk
 						 * log entries" */
 	xlog_in_core_t		*l_iclog;       /* head log queue	*/

fs/xfs/xfs_log_recover.c

@@ -1715,8 +1715,7 @@ xlog_check_buffer_cancelled(
 					} else {
 						prevp->bc_next = bcp->bc_next;
 					}
-					kmem_free(bcp,
-						  sizeof(xfs_buf_cancel_t));
+					kmem_free(bcp);
 				}
 			}
 			return 1;
@@ -2519,7 +2518,7 @@ write_inode_buffer:
 
 error:
 	if (need_free)
-		kmem_free(in_f, sizeof(*in_f));
+		kmem_free(in_f);
 	return XFS_ERROR(error);
 }
 
@@ -2830,16 +2829,14 @@ xlog_recover_free_trans(
 		item = item->ri_next;
 		 /* Free the regions in the item. */
 		for (i = 0; i < free_item->ri_cnt; i++) {
-			kmem_free(free_item->ri_buf[i].i_addr,
-				  free_item->ri_buf[i].i_len);
+			kmem_free(free_item->ri_buf[i].i_addr);
 		}
 		/* Free the item itself */
-		kmem_free(free_item->ri_buf,
-			  (free_item->ri_total * sizeof(xfs_log_iovec_t)));
-		kmem_free(free_item, sizeof(xlog_recover_item_t));
+		kmem_free(free_item->ri_buf);
+		kmem_free(free_item);
 	} while (first_item != item);
 	/* Free the transaction recover structure */
-	kmem_free(trans, sizeof(xlog_recover_t));
+	kmem_free(trans);
 }
 
 STATIC int
@@ -3786,8 +3783,7 @@ xlog_do_log_recovery(
 	error = xlog_do_recovery_pass(log, head_blk, tail_blk,
 				      XLOG_RECOVER_PASS1);
 	if (error != 0) {
-		kmem_free(log->l_buf_cancel_table,
-			  XLOG_BC_TABLE_SIZE * sizeof(xfs_buf_cancel_t*));
+		kmem_free(log->l_buf_cancel_table);
 		log->l_buf_cancel_table = NULL;
 		return error;
 	}
@@ -3806,8 +3802,7 @@ xlog_do_log_recovery(
 	}
 #endif	/* DEBUG */
 
-	kmem_free(log->l_buf_cancel_table,
-		  XLOG_BC_TABLE_SIZE * sizeof(xfs_buf_cancel_t*));
+	kmem_free(log->l_buf_cancel_table);
 	log->l_buf_cancel_table = NULL;
 
 	return error;

fs/xfs/xfs_mount.c

@@ -47,12 +47,10 @@
 
 STATIC int	xfs_mount_log_sb(xfs_mount_t *, __int64_t);
 STATIC int	xfs_uuid_mount(xfs_mount_t *);
-STATIC void	xfs_uuid_unmount(xfs_mount_t *mp);
 STATIC void	xfs_unmountfs_wait(xfs_mount_t *);
 
 
 #ifdef HAVE_PERCPU_SB
-STATIC void	xfs_icsb_destroy_counters(xfs_mount_t *);
 STATIC void	xfs_icsb_balance_counter(xfs_mount_t *, xfs_sb_field_t,
 						int);
 STATIC void	xfs_icsb_balance_counter_locked(xfs_mount_t *, xfs_sb_field_t,
@@ -63,7 +61,6 @@ STATIC void	xfs_icsb_disable_counter(xfs_mount_t *, xfs_sb_field_t);
 
 #else
 
-#define xfs_icsb_destroy_counters(mp)			do { } while (0)
 #define xfs_icsb_balance_counter(mp, a, b)		do { } while (0)
 #define xfs_icsb_balance_counter_locked(mp, a, b)	do { } while (0)
 #define xfs_icsb_modify_counters(mp, a, b, c)		do { } while (0)
@@ -125,34 +122,12 @@ static const struct {
     { sizeof(xfs_sb_t),			 0 }
 };
 
-/*
- * Return a pointer to an initialized xfs_mount structure.
- */
-xfs_mount_t *
-xfs_mount_init(void)
-{
-	xfs_mount_t *mp;
-
-	mp = kmem_zalloc(sizeof(xfs_mount_t), KM_SLEEP);
-
-	if (xfs_icsb_init_counters(mp)) {
-		mp->m_flags |= XFS_MOUNT_NO_PERCPU_SB;
-	}
-
-	spin_lock_init(&mp->m_sb_lock);
-	mutex_init(&mp->m_ilock);
-	mutex_init(&mp->m_growlock);
-	atomic_set(&mp->m_active_trans, 0);
-
-	return mp;
-}
-
 /*
  * Free up the resources associated with a mount structure.  Assume that
  * the structure was initially zeroed, so we can tell which fields got
  * initialized.
  */
-void
+STATIC void
 xfs_mount_free(
 	xfs_mount_t	*mp)
 {
@@ -161,11 +136,8 @@ xfs_mount_free(
 
 		for (agno = 0; agno < mp->m_maxagi; agno++)
 			if (mp->m_perag[agno].pagb_list)
-				kmem_free(mp->m_perag[agno].pagb_list,
-						sizeof(xfs_perag_busy_t) *
-							XFS_PAGB_NUM_SLOTS);
-		kmem_free(mp->m_perag,
-			  sizeof(xfs_perag_t) * mp->m_sb.sb_agcount);
+				kmem_free(mp->m_perag[agno].pagb_list);
+		kmem_free(mp->m_perag);
 	}
 
 	spinlock_destroy(&mp->m_ail_lock);
@@ -176,13 +148,11 @@ xfs_mount_free(
 		XFS_QM_DONE(mp);
 
 	if (mp->m_fsname != NULL)
-		kmem_free(mp->m_fsname, mp->m_fsname_len);
+		kmem_free(mp->m_fsname);
 	if (mp->m_rtname != NULL)
-		kmem_free(mp->m_rtname, strlen(mp->m_rtname) + 1);
+		kmem_free(mp->m_rtname);
 	if (mp->m_logname != NULL)
-		kmem_free(mp->m_logname, strlen(mp->m_logname) + 1);
-
-	xfs_icsb_destroy_counters(mp);
+		kmem_free(mp->m_logname);
 }
 
 /*
@@ -288,6 +258,19 @@ xfs_mount_validate_sb(
 		return XFS_ERROR(EFSCORRUPTED);
 	}
 
+	/*
+	 * Until this is fixed only page-sized or smaller data blocks work.
+	 */
+	if (unlikely(sbp->sb_blocksize > PAGE_SIZE)) {
+		xfs_fs_mount_cmn_err(flags,
+			"file system with blocksize %d bytes",
+			sbp->sb_blocksize);
+		xfs_fs_mount_cmn_err(flags,
+			"only pagesize (%ld) or less will currently work.",
+			PAGE_SIZE);
+		return XFS_ERROR(ENOSYS);
+	}
+
 	if (xfs_sb_validate_fsb_count(sbp, sbp->sb_dblocks) ||
 	    xfs_sb_validate_fsb_count(sbp, sbp->sb_rblocks)) {
 		xfs_fs_mount_cmn_err(flags,
@@ -309,19 +292,6 @@ xfs_mount_validate_sb(
 		return XFS_ERROR(ENOSYS);
 	}
 
-	/*
-	 * Until this is fixed only page-sized or smaller data blocks work.
-	 */
-	if (unlikely(sbp->sb_blocksize > PAGE_SIZE)) {
-		xfs_fs_mount_cmn_err(flags,
-			"file system with blocksize %d bytes",
-			sbp->sb_blocksize);
-		xfs_fs_mount_cmn_err(flags,
-			"only pagesize (%ld) or less will currently work.",
-			PAGE_SIZE);
-		return XFS_ERROR(ENOSYS);
-	}
-
 	return 0;
 }
 
@@ -994,9 +964,19 @@ xfs_mountfs(
 		 * Re-check for ATTR2 in case it was found in bad_features2
 		 * slot.
 		 */
-		if (xfs_sb_version_hasattr2(&mp->m_sb))
+		if (xfs_sb_version_hasattr2(&mp->m_sb) &&
+		   !(mp->m_flags & XFS_MOUNT_NOATTR2))
 			mp->m_flags |= XFS_MOUNT_ATTR2;
+	}
+
+	if (xfs_sb_version_hasattr2(&mp->m_sb) &&
+	   (mp->m_flags & XFS_MOUNT_NOATTR2)) {
+		xfs_sb_version_removeattr2(&mp->m_sb);
+		update_flags |= XFS_SB_FEATURES2;
 
+		/* update sb_versionnum for the clearing of the morebits */
+		if (!sbp->sb_features2)
+			update_flags |= XFS_SB_VERSIONNUM;
 	}
 
 	/*
@@ -1255,15 +1235,13 @@ xfs_mountfs(
  error2:
 	for (agno = 0; agno < sbp->sb_agcount; agno++)
 		if (mp->m_perag[agno].pagb_list)
-			kmem_free(mp->m_perag[agno].pagb_list,
-			  sizeof(xfs_perag_busy_t) * XFS_PAGB_NUM_SLOTS);
-	kmem_free(mp->m_perag, sbp->sb_agcount * sizeof(xfs_perag_t));
+			kmem_free(mp->m_perag[agno].pagb_list);
+	kmem_free(mp->m_perag);
 	mp->m_perag = NULL;
 	/* FALLTHROUGH */
  error1:
 	if (uuid_mounted)
-		xfs_uuid_unmount(mp);
-	xfs_freesb(mp);
+		uuid_table_remove(&mp->m_sb.sb_uuid);
 	return error;
 }
 
@@ -1274,7 +1252,7 @@ xfs_mountfs(
  * log and makes sure that incore structures are freed.
  */
 int
-xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
+xfs_unmountfs(xfs_mount_t *mp)
 {
 	__uint64_t	resblks;
 	int		error = 0;
@@ -1341,9 +1319,8 @@ xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
 	 */
 	ASSERT(mp->m_inodes == NULL);
 
-	xfs_unmountfs_close(mp, cr);
 	if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0)
-		xfs_uuid_unmount(mp);
+		uuid_table_remove(&mp->m_sb.sb_uuid);
 
 #if defined(DEBUG) || defined(INDUCE_IO_ERROR)
 	xfs_errortag_clearall(mp, 0);
@@ -1352,16 +1329,6 @@ xfs_unmountfs(xfs_mount_t *mp, struct cred *cr)
 	return 0;
 }
 
-void
-xfs_unmountfs_close(xfs_mount_t *mp, struct cred *cr)
-{
-	if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp)
-		xfs_free_buftarg(mp->m_logdev_targp, 1);
-	if (mp->m_rtdev_targp)
-		xfs_free_buftarg(mp->m_rtdev_targp, 1);
-	xfs_free_buftarg(mp->m_ddev_targp, 0);
-}
-
 STATIC void
 xfs_unmountfs_wait(xfs_mount_t *mp)
 {
@@ -1904,16 +1871,6 @@ xfs_uuid_mount(
 	return 0;
 }
 
-/*
- * Remove filesystem from the UUID table.
- */
-STATIC void
-xfs_uuid_unmount(
-	xfs_mount_t	*mp)
-{
-	uuid_table_remove(&mp->m_sb.sb_uuid);
-}
-
 /*
  * Used to log changes to the superblock unit and width fields which could
  * be altered by the mount options, as well as any potential sb_features2
@@ -1928,7 +1885,8 @@ xfs_mount_log_sb(
 	int		error;
 
 	ASSERT(fields & (XFS_SB_UNIT | XFS_SB_WIDTH | XFS_SB_UUID |
-			 XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2));
+			 XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2 |
+			 XFS_SB_VERSIONNUM));
 
 	tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT);
 	error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
@@ -2109,7 +2067,7 @@ xfs_icsb_reinit_counters(
 	xfs_icsb_unlock(mp);
 }
 
-STATIC void
+void
 xfs_icsb_destroy_counters(
 	xfs_mount_t	*mp)
 {

fs/xfs/xfs_mount.h

@@ -61,6 +61,7 @@ struct xfs_bmap_free;
 struct xfs_extdelta;
 struct xfs_swapext;
 struct xfs_mru_cache;
+struct xfs_nameops;
 
 /*
  * Prototypes and functions for the Data Migration subsystem.
@@ -210,12 +211,14 @@ typedef struct xfs_icsb_cnts {
 
 extern int	xfs_icsb_init_counters(struct xfs_mount *);
 extern void	xfs_icsb_reinit_counters(struct xfs_mount *);
+extern void	xfs_icsb_destroy_counters(struct xfs_mount *);
 extern void	xfs_icsb_sync_counters(struct xfs_mount *, int);
 extern void	xfs_icsb_sync_counters_locked(struct xfs_mount *, int);
 
 #else
-#define xfs_icsb_init_counters(mp)	(0)
-#define xfs_icsb_reinit_counters(mp)	do { } while (0)
+#define xfs_icsb_init_counters(mp)		(0)
+#define xfs_icsb_destroy_counters(mp)		do { } while (0)
+#define xfs_icsb_reinit_counters(mp)		do { } while (0)
 #define xfs_icsb_sync_counters(mp, flags)	do { } while (0)
 #define xfs_icsb_sync_counters_locked(mp, flags) do { } while (0)
 #endif
@@ -313,6 +316,7 @@ typedef struct xfs_mount {
 	__uint8_t		m_inode_quiesce;/* call quiesce on new inodes.
 						   field governed by m_ilock */
 	__uint8_t		m_sectbb_log;	/* sectlog - BBSHIFT */
+	const struct xfs_nameops *m_dirnameops;	/* vector of dir name ops */
 	int			m_dirblksize;	/* directory block sz--bytes */
 	int			m_dirblkfsbs;	/* directory block sz--fsbs */
 	xfs_dablk_t		m_dirdatablk;	/* blockno of dir data v2 */
@@ -378,6 +382,7 @@ typedef struct xfs_mount {
 						   counters */
 #define XFS_MOUNT_FILESTREAMS	(1ULL << 24)	/* enable the filestreams
 						   allocator */
+#define XFS_MOUNT_NOATTR2	(1ULL << 25)	/* disable use of attr2 format */
 
 
 /*
@@ -510,15 +515,12 @@ typedef struct xfs_mod_sb {
 #define	XFS_MOUNT_ILOCK(mp)	mutex_lock(&((mp)->m_ilock))
 #define	XFS_MOUNT_IUNLOCK(mp)	mutex_unlock(&((mp)->m_ilock))
 
-extern xfs_mount_t *xfs_mount_init(void);
 extern void	xfs_mod_sb(xfs_trans_t *, __int64_t);
 extern int	xfs_log_sbcount(xfs_mount_t *, uint);
-extern void	xfs_mount_free(xfs_mount_t *mp);
 extern int	xfs_mountfs(xfs_mount_t *mp, int);
 extern void	xfs_mountfs_check_barriers(xfs_mount_t *mp);
 
-extern int	xfs_unmountfs(xfs_mount_t *, struct cred *);
-extern void	xfs_unmountfs_close(xfs_mount_t *, struct cred *);
+extern int	xfs_unmountfs(xfs_mount_t *);
 extern int	xfs_unmountfs_writesb(xfs_mount_t *);
 extern int	xfs_unmount_flush(xfs_mount_t *, int);
 extern int	xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
@@ -544,9 +546,6 @@ extern void	xfs_qmops_put(struct xfs_mount *);
 
 extern struct xfs_dmops xfs_dmcore_xfs;
 
-extern int	xfs_init(void);
-extern void	xfs_cleanup(void);
-
 #endif	/* __KERNEL__ */
 
 #endif	/* __XFS_MOUNT_H__ */

fs/xfs/xfs_mru_cache.c

@@ -307,15 +307,18 @@ xfs_mru_cache_init(void)
 	xfs_mru_elem_zone = kmem_zone_init(sizeof(xfs_mru_cache_elem_t),
 	                                 "xfs_mru_cache_elem");
 	if (!xfs_mru_elem_zone)
-		return ENOMEM;
+		goto out;
 
 	xfs_mru_reap_wq = create_singlethread_workqueue("xfs_mru_cache");
-	if (!xfs_mru_reap_wq) {
-		kmem_zone_destroy(xfs_mru_elem_zone);
-		return ENOMEM;
-	}
+	if (!xfs_mru_reap_wq)
+		goto out_destroy_mru_elem_zone;
 
 	return 0;
+
+ out_destroy_mru_elem_zone:
+	kmem_zone_destroy(xfs_mru_elem_zone);
+ out:
+	return -ENOMEM;
 }
 
 void
@@ -382,9 +385,9 @@ xfs_mru_cache_create(
 
 exit:
 	if (err && mru && mru->lists)
-		kmem_free(mru->lists, mru->grp_count * sizeof(*mru->lists));
+		kmem_free(mru->lists);
 	if (err && mru)
-		kmem_free(mru, sizeof(*mru));
+		kmem_free(mru);
 
 	return err;
 }
@@ -424,8 +427,8 @@ xfs_mru_cache_destroy(
 
 	xfs_mru_cache_flush(mru);
 
-	kmem_free(mru->lists, mru->grp_count * sizeof(*mru->lists));
-	kmem_free(mru, sizeof(*mru));
+	kmem_free(mru->lists);
+	kmem_free(mru);
 }
 
 /*

fs/xfs/xfs_rename.c

@@ -336,21 +336,17 @@ xfs_rename(
 		ASSERT(error != EEXIST);
 		if (error)
 			goto abort_return;
-		xfs_ichgtime(src_ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
-
-	} else {
-		/*
-		 * We always want to hit the ctime on the source inode.
-		 * We do it in the if clause above for the 'new_parent &&
-		 * src_is_directory' case, and here we get all the other
-		 * cases.  This isn't strictly required by the standards
-		 * since the source inode isn't really being changed,
-		 * but old unix file systems did it and some incremental
-		 * backup programs won't work without it.
-		 */
-		xfs_ichgtime(src_ip, XFS_ICHGTIME_CHG);
 	}
 
+	/*
+	 * We always want to hit the ctime on the source inode.
+	 *
+	 * This isn't strictly required by the standards since the source
+	 * inode isn't really being changed, but old unix file systems did
+	 * it and some incremental backup programs won't work without it.
+	 */
+	xfs_ichgtime(src_ip, XFS_ICHGTIME_CHG);
+
 	/*
 	 * Adjust the link count on src_dp.  This is necessary when
 	 * renaming a directory, either within one parent when

fs/xfs/xfs_rtalloc.c

@@ -2062,7 +2062,7 @@ xfs_growfs_rt(
 	/*
 	 * Free the fake mp structure.
 	 */
-	kmem_free(nmp, sizeof(*nmp));
+	kmem_free(nmp);
 
 	return error;
 }

fs/xfs/xfs_sb.h

@@ -46,10 +46,12 @@ struct xfs_mount;
 #define XFS_SB_VERSION_SECTORBIT	0x0800
 #define	XFS_SB_VERSION_EXTFLGBIT	0x1000
 #define	XFS_SB_VERSION_DIRV2BIT		0x2000
+#define	XFS_SB_VERSION_BORGBIT		0x4000	/* ASCII only case-insens. */
 #define	XFS_SB_VERSION_MOREBITSBIT	0x8000
 #define	XFS_SB_VERSION_OKSASHFBITS	\
 	(XFS_SB_VERSION_EXTFLGBIT | \
-	 XFS_SB_VERSION_DIRV2BIT)
+	 XFS_SB_VERSION_DIRV2BIT | \
+	 XFS_SB_VERSION_BORGBIT)
 #define	XFS_SB_VERSION_OKREALFBITS	\
 	(XFS_SB_VERSION_ATTRBIT | \
 	 XFS_SB_VERSION_NLINKBIT | \
@@ -437,6 +439,12 @@ static inline int xfs_sb_version_hassector(xfs_sb_t *sbp)
 		((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
 }
 
+static inline int xfs_sb_version_hasasciici(xfs_sb_t *sbp)
+{
+	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
+		(sbp->sb_versionnum & XFS_SB_VERSION_BORGBIT);
+}
+
 static inline int xfs_sb_version_hasmorebits(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
@@ -473,6 +481,13 @@ static inline void xfs_sb_version_addattr2(xfs_sb_t *sbp)
 		((sbp)->sb_features2 | XFS_SB_VERSION2_ATTR2BIT)));
 }
 
+static inline void xfs_sb_version_removeattr2(xfs_sb_t *sbp)
+{
+	sbp->sb_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
+	if (!sbp->sb_features2)
+		sbp->sb_versionnum &= ~XFS_SB_VERSION_MOREBITSBIT;
+}
+
 /*
  * end of superblock version macros
  */

fs/xfs/xfs_trans.c

@@ -889,7 +889,7 @@ shut_us_down:
 
 	tp->t_commit_lsn = commit_lsn;
 	if (nvec > XFS_TRANS_LOGVEC_COUNT) {
-		kmem_free(log_vector, nvec * sizeof(xfs_log_iovec_t));
+		kmem_free(log_vector);
 	}
 
 	/*
@@ -1265,7 +1265,7 @@ xfs_trans_committed(
 		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
 		xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
 		next_licp = licp->lic_next;
-		kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+		kmem_free(licp);
 		licp = next_licp;
 	}
 

fs/xfs/xfs_trans_inode.c

@@ -291,7 +291,7 @@ xfs_trans_inode_broot_debug(
 	iip = ip->i_itemp;
 	if (iip->ili_root_size != 0) {
 		ASSERT(iip->ili_orig_root != NULL);
-		kmem_free(iip->ili_orig_root, iip->ili_root_size);
+		kmem_free(iip->ili_orig_root);
 		iip->ili_root_size = 0;
 		iip->ili_orig_root = NULL;
 	}

fs/xfs/xfs_trans_item.c

@@ -161,7 +161,7 @@ xfs_trans_free_item(xfs_trans_t	*tp, xfs_log_item_desc_t *lidp)
 			licpp = &((*licpp)->lic_next);
 		}
 		*licpp = licp->lic_next;
-		kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+		kmem_free(licp);
 		tp->t_items_free -= XFS_LIC_NUM_SLOTS;
 	}
 }
@@ -314,7 +314,7 @@ xfs_trans_free_items(
 		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
 		(void) xfs_trans_unlock_chunk(licp, 1, abort, NULLCOMMITLSN);
 		next_licp = licp->lic_next;
-		kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+		kmem_free(licp);
 		licp = next_licp;
 	}
 
@@ -363,7 +363,7 @@ xfs_trans_unlock_items(xfs_trans_t *tp, xfs_lsn_t commit_lsn)
 		next_licp = licp->lic_next;
 		if (XFS_LIC_ARE_ALL_FREE(licp)) {
 			*licpp = next_licp;
-			kmem_free(licp, sizeof(xfs_log_item_chunk_t));
+			kmem_free(licp);
 			freed -= XFS_LIC_NUM_SLOTS;
 		} else {
 			licpp = &(licp->lic_next);
@@ -530,7 +530,7 @@ xfs_trans_free_busy(xfs_trans_t *tp)
 	lbcp = tp->t_busy.lbc_next;
 	while (lbcp != NULL) {
 		lbcq = lbcp->lbc_next;
-		kmem_free(lbcp, sizeof(xfs_log_busy_chunk_t));
+		kmem_free(lbcp);
 		lbcp = lbcq;
 	}
 

fs/xfs/xfs_vfsops.c

@@ -58,586 +58,6 @@
 #include "xfs_utils.h"
 
 
-int __init
-xfs_init(void)
-{
-#ifdef XFS_DABUF_DEBUG
-	extern spinlock_t        xfs_dabuf_global_lock;
-	spin_lock_init(&xfs_dabuf_global_lock);
-#endif
-
-	/*
-	 * Initialize all of the zone allocators we use.
-	 */
-	xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t),
-						"xfs_log_ticket");
-	xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t),
-						"xfs_bmap_free_item");
-	xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t),
-						"xfs_btree_cur");
-	xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t),
-						"xfs_da_state");
-	xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf");
-	xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork");
-	xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans");
-	xfs_acl_zone_init(xfs_acl_zone, "xfs_acl");
-	xfs_mru_cache_init();
-	xfs_filestream_init();
-
-	/*
-	 * The size of the zone allocated buf log item is the maximum
-	 * size possible under XFS.  This wastes a little bit of memory,
-	 * but it is much faster.
-	 */
-	xfs_buf_item_zone =
-		kmem_zone_init((sizeof(xfs_buf_log_item_t) +
-				(((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) /
-				  NBWORD) * sizeof(int))),
-			       "xfs_buf_item");
-	xfs_efd_zone =
-		kmem_zone_init((sizeof(xfs_efd_log_item_t) +
-			       ((XFS_EFD_MAX_FAST_EXTENTS - 1) *
-				 sizeof(xfs_extent_t))),
-				      "xfs_efd_item");
-	xfs_efi_zone =
-		kmem_zone_init((sizeof(xfs_efi_log_item_t) +
-			       ((XFS_EFI_MAX_FAST_EXTENTS - 1) *
-				 sizeof(xfs_extent_t))),
-				      "xfs_efi_item");
-
-	/*
-	 * These zones warrant special memory allocator hints
-	 */
-	xfs_inode_zone =
-		kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode",
-					KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
-					KM_ZONE_SPREAD, NULL);
-	xfs_ili_zone =
-		kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili",
-					KM_ZONE_SPREAD, NULL);
-
-	/*
-	 * Allocate global trace buffers.
-	 */
-#ifdef XFS_ALLOC_TRACE
-	xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_BMAP_TRACE
-	xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_BMBT_TRACE
-	xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_ATTR_TRACE
-	xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_DIR2_TRACE
-	xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_SLEEP);
-#endif
-
-	xfs_dir_startup();
-
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
-	xfs_error_test_init();
-#endif /* DEBUG || INDUCE_IO_ERROR */
-
-	xfs_init_procfs();
-	xfs_sysctl_register();
-	return 0;
-}
-
-void __exit
-xfs_cleanup(void)
-{
-	extern kmem_zone_t	*xfs_inode_zone;
-	extern kmem_zone_t	*xfs_efd_zone;
-	extern kmem_zone_t	*xfs_efi_zone;
-
-	xfs_cleanup_procfs();
-	xfs_sysctl_unregister();
-	xfs_filestream_uninit();
-	xfs_mru_cache_uninit();
-	xfs_acl_zone_destroy(xfs_acl_zone);
-
-#ifdef XFS_DIR2_TRACE
-	ktrace_free(xfs_dir2_trace_buf);
-#endif
-#ifdef XFS_ATTR_TRACE
-	ktrace_free(xfs_attr_trace_buf);
-#endif
-#ifdef XFS_BMBT_TRACE
-	ktrace_free(xfs_bmbt_trace_buf);
-#endif
-#ifdef XFS_BMAP_TRACE
-	ktrace_free(xfs_bmap_trace_buf);
-#endif
-#ifdef XFS_ALLOC_TRACE
-	ktrace_free(xfs_alloc_trace_buf);
-#endif
-
-	kmem_zone_destroy(xfs_bmap_free_item_zone);
-	kmem_zone_destroy(xfs_btree_cur_zone);
-	kmem_zone_destroy(xfs_inode_zone);
-	kmem_zone_destroy(xfs_trans_zone);
-	kmem_zone_destroy(xfs_da_state_zone);
-	kmem_zone_destroy(xfs_dabuf_zone);
-	kmem_zone_destroy(xfs_buf_item_zone);
-	kmem_zone_destroy(xfs_efd_zone);
-	kmem_zone_destroy(xfs_efi_zone);
-	kmem_zone_destroy(xfs_ifork_zone);
-	kmem_zone_destroy(xfs_ili_zone);
-	kmem_zone_destroy(xfs_log_ticket_zone);
-}
-
-/*
- * xfs_start_flags
- *
- * This function fills in xfs_mount_t fields based on mount args.
- * Note: the superblock has _not_ yet been read in.
- */
-STATIC int
-xfs_start_flags(
-	struct xfs_mount_args	*ap,
-	struct xfs_mount	*mp)
-{
-	/* Values are in BBs */
-	if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
-		/*
-		 * At this point the superblock has not been read
-		 * in, therefore we do not know the block size.
-		 * Before the mount call ends we will convert
-		 * these to FSBs.
-		 */
-		mp->m_dalign = ap->sunit;
-		mp->m_swidth = ap->swidth;
-	}
-
-	if (ap->logbufs != -1 &&
-	    ap->logbufs != 0 &&
-	    (ap->logbufs < XLOG_MIN_ICLOGS ||
-	     ap->logbufs > XLOG_MAX_ICLOGS)) {
-		cmn_err(CE_WARN,
-			"XFS: invalid logbufs value: %d [not %d-%d]",
-			ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS);
-		return XFS_ERROR(EINVAL);
-	}
-	mp->m_logbufs = ap->logbufs;
-	if (ap->logbufsize != -1 &&
-	    ap->logbufsize !=  0 &&
-	    (ap->logbufsize < XLOG_MIN_RECORD_BSIZE ||
-	     ap->logbufsize > XLOG_MAX_RECORD_BSIZE ||
-	     !is_power_of_2(ap->logbufsize))) {
-		cmn_err(CE_WARN,
-	"XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
-			ap->logbufsize);
-		return XFS_ERROR(EINVAL);
-	}
-	mp->m_logbsize = ap->logbufsize;
-	mp->m_fsname_len = strlen(ap->fsname) + 1;
-	mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP);
-	strcpy(mp->m_fsname, ap->fsname);
-	if (ap->rtname[0]) {
-		mp->m_rtname = kmem_alloc(strlen(ap->rtname) + 1, KM_SLEEP);
-		strcpy(mp->m_rtname, ap->rtname);
-	}
-	if (ap->logname[0]) {
-		mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP);
-		strcpy(mp->m_logname, ap->logname);
-	}
-
-	if (ap->flags & XFSMNT_WSYNC)
-		mp->m_flags |= XFS_MOUNT_WSYNC;
-#if XFS_BIG_INUMS
-	if (ap->flags & XFSMNT_INO64) {
-		mp->m_flags |= XFS_MOUNT_INO64;
-		mp->m_inoadd = XFS_INO64_OFFSET;
-	}
-#endif
-	if (ap->flags & XFSMNT_RETERR)
-		mp->m_flags |= XFS_MOUNT_RETERR;
-	if (ap->flags & XFSMNT_NOALIGN)
-		mp->m_flags |= XFS_MOUNT_NOALIGN;
-	if (ap->flags & XFSMNT_SWALLOC)
-		mp->m_flags |= XFS_MOUNT_SWALLOC;
-	if (ap->flags & XFSMNT_OSYNCISOSYNC)
-		mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC;
-	if (ap->flags & XFSMNT_32BITINODES)
-		mp->m_flags |= XFS_MOUNT_32BITINODES;
-
-	if (ap->flags & XFSMNT_IOSIZE) {
-		if (ap->iosizelog > XFS_MAX_IO_LOG ||
-		    ap->iosizelog < XFS_MIN_IO_LOG) {
-			cmn_err(CE_WARN,
-		"XFS: invalid log iosize: %d [not %d-%d]",
-				ap->iosizelog, XFS_MIN_IO_LOG,
-				XFS_MAX_IO_LOG);
-			return XFS_ERROR(EINVAL);
-		}
-
-		mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
-		mp->m_readio_log = mp->m_writeio_log = ap->iosizelog;
-	}
-
-	if (ap->flags & XFSMNT_IKEEP)
-		mp->m_flags |= XFS_MOUNT_IKEEP;
-	if (ap->flags & XFSMNT_DIRSYNC)
-		mp->m_flags |= XFS_MOUNT_DIRSYNC;
-	if (ap->flags & XFSMNT_ATTR2)
-		mp->m_flags |= XFS_MOUNT_ATTR2;
-
-	if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE)
-		mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
-
-	/*
-	 * no recovery flag requires a read-only mount
-	 */
-	if (ap->flags & XFSMNT_NORECOVERY) {
-		if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
-			cmn_err(CE_WARN,
-	"XFS: tried to mount a FS read-write without recovery!");
-			return XFS_ERROR(EINVAL);
-		}
-		mp->m_flags |= XFS_MOUNT_NORECOVERY;
-	}
-
-	if (ap->flags & XFSMNT_NOUUID)
-		mp->m_flags |= XFS_MOUNT_NOUUID;
-	if (ap->flags & XFSMNT_BARRIER)
-		mp->m_flags |= XFS_MOUNT_BARRIER;
-	else
-		mp->m_flags &= ~XFS_MOUNT_BARRIER;
-
-	if (ap->flags2 & XFSMNT2_FILESTREAMS)
-		mp->m_flags |= XFS_MOUNT_FILESTREAMS;
-
-	if (ap->flags & XFSMNT_DMAPI)
-		mp->m_flags |= XFS_MOUNT_DMAPI;
-	return 0;
-}
-
-/*
- * This function fills in xfs_mount_t fields based on mount args.
- * Note: the superblock _has_ now been read in.
- */
-STATIC int
-xfs_finish_flags(
-	struct xfs_mount_args	*ap,
-	struct xfs_mount	*mp)
-{
-	int			ronly = (mp->m_flags & XFS_MOUNT_RDONLY);
-
-	/* Fail a mount where the logbuf is smaller then the log stripe */
-	if (xfs_sb_version_haslogv2(&mp->m_sb)) {
-		if ((ap->logbufsize <= 0) &&
-		    (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) {
-			mp->m_logbsize = mp->m_sb.sb_logsunit;
-		} else if (ap->logbufsize > 0 &&
-			   ap->logbufsize < mp->m_sb.sb_logsunit) {
-			cmn_err(CE_WARN,
-	"XFS: logbuf size must be greater than or equal to log stripe size");
-			return XFS_ERROR(EINVAL);
-		}
-	} else {
-		/* Fail a mount if the logbuf is larger than 32K */
-		if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) {
-			cmn_err(CE_WARN,
-	"XFS: logbuf size for version 1 logs must be 16K or 32K");
-			return XFS_ERROR(EINVAL);
-		}
-	}
-
-	if (xfs_sb_version_hasattr2(&mp->m_sb))
-		mp->m_flags |= XFS_MOUNT_ATTR2;
-
-	/*
-	 * prohibit r/w mounts of read-only filesystems
-	 */
-	if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) {
-		cmn_err(CE_WARN,
-	"XFS: cannot mount a read-only filesystem as read-write");
-		return XFS_ERROR(EROFS);
-	}
-
-	/*
-	 * check for shared mount.
-	 */
-	if (ap->flags & XFSMNT_SHARED) {
-		if (!xfs_sb_version_hasshared(&mp->m_sb))
-			return XFS_ERROR(EINVAL);
-
-		/*
-		 * For IRIX 6.5, shared mounts must have the shared
-		 * version bit set, have the persistent readonly
-		 * field set, must be version 0 and can only be mounted
-		 * read-only.
-		 */
-		if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) ||
-		     (mp->m_sb.sb_shared_vn != 0))
-			return XFS_ERROR(EINVAL);
-
-		mp->m_flags |= XFS_MOUNT_SHARED;
-
-		/*
-		 * Shared XFS V0 can't deal with DMI.  Return EINVAL.
-		 */
-		if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI))
-			return XFS_ERROR(EINVAL);
-	}
-
-	if (ap->flags & XFSMNT_UQUOTA) {
-		mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
-		if (ap->flags & XFSMNT_UQUOTAENF)
-			mp->m_qflags |= XFS_UQUOTA_ENFD;
-	}
-
-	if (ap->flags & XFSMNT_GQUOTA) {
-		mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
-		if (ap->flags & XFSMNT_GQUOTAENF)
-			mp->m_qflags |= XFS_OQUOTA_ENFD;
-	} else if (ap->flags & XFSMNT_PQUOTA) {
-		mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
-		if (ap->flags & XFSMNT_PQUOTAENF)
-			mp->m_qflags |= XFS_OQUOTA_ENFD;
-	}
-
-	return 0;
-}
-
-/*
- * xfs_mount
- *
- * The file system configurations are:
- *	(1) device (partition) with data and internal log
- *	(2) logical volume with data and log subvolumes.
- *	(3) logical volume with data, log, and realtime subvolumes.
- *
- * We only have to handle opening the log and realtime volumes here if
- * they are present.  The data subvolume has already been opened by
- * get_sb_bdev() and is stored in vfsp->vfs_super->s_bdev.
- */
-int
-xfs_mount(
-	struct xfs_mount	*mp,
-	struct xfs_mount_args	*args,
-	cred_t			*credp)
-{
-	struct block_device	*ddev, *logdev, *rtdev;
-	int			flags = 0, error;
-
-	ddev = mp->m_super->s_bdev;
-	logdev = rtdev = NULL;
-
-	error = xfs_dmops_get(mp, args);
-	if (error)
-		return error;
-	error = xfs_qmops_get(mp, args);
-	if (error)
-		return error;
-
-	if (args->flags & XFSMNT_QUIET)
-		flags |= XFS_MFSI_QUIET;
-
-	/*
-	 * Open real time and log devices - order is important.
-	 */
-	if (args->logname[0]) {
-		error = xfs_blkdev_get(mp, args->logname, &logdev);
-		if (error)
-			return error;
-	}
-	if (args->rtname[0]) {
-		error = xfs_blkdev_get(mp, args->rtname, &rtdev);
-		if (error) {
-			xfs_blkdev_put(logdev);
-			return error;
-		}
-
-		if (rtdev == ddev || rtdev == logdev) {
-			cmn_err(CE_WARN,
-	"XFS: Cannot mount filesystem with identical rtdev and ddev/logdev.");
-			xfs_blkdev_put(logdev);
-			xfs_blkdev_put(rtdev);
-			return EINVAL;
-		}
-	}
-
-	/*
-	 * Setup xfs_mount buffer target pointers
-	 */
-	error = ENOMEM;
-	mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0);
-	if (!mp->m_ddev_targp) {
-		xfs_blkdev_put(logdev);
-		xfs_blkdev_put(rtdev);
-		return error;
-	}
-	if (rtdev) {
-		mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1);
-		if (!mp->m_rtdev_targp) {
-			xfs_blkdev_put(logdev);
-			xfs_blkdev_put(rtdev);
-			goto error0;
-		}
-	}
-	mp->m_logdev_targp = (logdev && logdev != ddev) ?
-				xfs_alloc_buftarg(logdev, 1) : mp->m_ddev_targp;
-	if (!mp->m_logdev_targp) {
-		xfs_blkdev_put(logdev);
-		xfs_blkdev_put(rtdev);
-		goto error0;
-	}
-
-	/*
-	 * Setup flags based on mount(2) options and then the superblock
-	 */
-	error = xfs_start_flags(args, mp);
-	if (error)
-		goto error1;
-	error = xfs_readsb(mp, flags);
-	if (error)
-		goto error1;
-	error = xfs_finish_flags(args, mp);
-	if (error)
-		goto error2;
-
-	/*
-	 * Setup xfs_mount buffer target pointers based on superblock
-	 */
-	error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize,
-				    mp->m_sb.sb_sectsize);
-	if (!error && logdev && logdev != ddev) {
-		unsigned int	log_sector_size = BBSIZE;
-
-		if (xfs_sb_version_hassector(&mp->m_sb))
-			log_sector_size = mp->m_sb.sb_logsectsize;
-		error = xfs_setsize_buftarg(mp->m_logdev_targp,
-					    mp->m_sb.sb_blocksize,
-					    log_sector_size);
-	}
-	if (!error && rtdev)
-		error = xfs_setsize_buftarg(mp->m_rtdev_targp,
-					    mp->m_sb.sb_blocksize,
-					    mp->m_sb.sb_sectsize);
-	if (error)
-		goto error2;
-
-	if (mp->m_flags & XFS_MOUNT_BARRIER)
-		xfs_mountfs_check_barriers(mp);
-
-	if ((error = xfs_filestream_mount(mp)))
-		goto error2;
-
-	error = xfs_mountfs(mp, flags);
-	if (error)
-		goto error2;
-
-	XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname);
-
-	return 0;
-
-error2:
-	if (mp->m_sb_bp)
-		xfs_freesb(mp);
-error1:
-	xfs_binval(mp->m_ddev_targp);
-	if (logdev && logdev != ddev)
-		xfs_binval(mp->m_logdev_targp);
-	if (rtdev)
-		xfs_binval(mp->m_rtdev_targp);
-error0:
-	xfs_unmountfs_close(mp, credp);
-	xfs_qmops_put(mp);
-	xfs_dmops_put(mp);
-	return error;
-}
-
-int
-xfs_unmount(
-	xfs_mount_t	*mp,
-	int		flags,
-	cred_t		*credp)
-{
-	xfs_inode_t	*rip;
-	bhv_vnode_t	*rvp;
-	int		unmount_event_wanted = 0;
-	int		unmount_event_flags = 0;
-	int		xfs_unmountfs_needed = 0;
-	int		error;
-
-	rip = mp->m_rootip;
-	rvp = XFS_ITOV(rip);
-
-#ifdef HAVE_DMAPI
-	if (mp->m_flags & XFS_MOUNT_DMAPI) {
-		error = XFS_SEND_PREUNMOUNT(mp,
-				rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL,
-				NULL, NULL, 0, 0,
-				(mp->m_dmevmask & (1<<DM_EVENT_PREUNMOUNT))?
-					0:DM_FLAGS_UNWANTED);
-			if (error)
-				return XFS_ERROR(error);
-		unmount_event_wanted = 1;
-		unmount_event_flags = (mp->m_dmevmask & (1<<DM_EVENT_UNMOUNT))?
-					0 : DM_FLAGS_UNWANTED;
-	}
-#endif
-
-	/*
-	 * Blow away any referenced inode in the filestreams cache.
-	 * This can and will cause log traffic as inodes go inactive
-	 * here.
-	 */
-	xfs_filestream_unmount(mp);
-
-	XFS_bflush(mp->m_ddev_targp);
-	error = xfs_unmount_flush(mp, 0);
-	if (error)
-		goto out;
-
-	ASSERT(vn_count(rvp) == 1);
-
-	/*
-	 * Drop the reference count
-	 */
-	IRELE(rip);
-
-	/*
-	 * If we're forcing a shutdown, typically because of a media error,
-	 * we want to make sure we invalidate dirty pages that belong to
-	 * referenced vnodes as well.
-	 */
-	if (XFS_FORCED_SHUTDOWN(mp)) {
-		error = xfs_sync(mp, SYNC_WAIT | SYNC_CLOSE);
-		ASSERT(error != EFSCORRUPTED);
-	}
-	xfs_unmountfs_needed = 1;
-
-out:
-	/*	Send DMAPI event, if required.
-	 *	Then do xfs_unmountfs() if needed.
-	 *	Then return error (or zero).
-	 */
-	if (unmount_event_wanted) {
-		/* Note: mp structure must still exist for
-		 * XFS_SEND_UNMOUNT() call.
-		 */
-		XFS_SEND_UNMOUNT(mp, error == 0 ? rip : NULL,
-			DM_RIGHT_NULL, 0, error, unmount_event_flags);
-	}
-	if (xfs_unmountfs_needed) {
-		/*
-		 * Call common unmount function to flush to disk
-		 * and free the super block buffer & mount structures.
-		 */
-		xfs_unmountfs(mp, credp);
-		xfs_qmops_put(mp);
-		xfs_dmops_put(mp);
-		kmem_free(mp, sizeof(xfs_mount_t));
-	}
-
-	return XFS_ERROR(error);
-}
-
 STATIC void
 xfs_quiesce_fs(
 	xfs_mount_t		*mp)
@@ -694,30 +114,6 @@ xfs_attr_quiesce(
 	xfs_unmountfs_writesb(mp);
 }
 
-int
-xfs_mntupdate(
-	struct xfs_mount		*mp,
-	int				*flags,
-	struct xfs_mount_args		*args)
-{
-	if (!(*flags & MS_RDONLY)) {			/* rw/ro -> rw */
-		if (mp->m_flags & XFS_MOUNT_RDONLY)
-			mp->m_flags &= ~XFS_MOUNT_RDONLY;
-		if (args->flags & XFSMNT_BARRIER) {
-			mp->m_flags |= XFS_MOUNT_BARRIER;
-			xfs_mountfs_check_barriers(mp);
-		} else {
-			mp->m_flags &= ~XFS_MOUNT_BARRIER;
-		}
-	} else if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {	/* rw -> ro */
-		xfs_filestream_flush(mp);
-		xfs_sync(mp, SYNC_DATA_QUIESCE);
-		xfs_attr_quiesce(mp);
-		mp->m_flags |= XFS_MOUNT_RDONLY;
-	}
-	return 0;
-}
-
 /*
  * xfs_unmount_flush implements a set of flush operation on special
  * inodes, which are needed as a separate set of operations so that
@@ -1048,7 +444,7 @@ xfs_sync_inodes(
 
 		if (XFS_FORCED_SHUTDOWN(mp) && !(flags & SYNC_CLOSE)) {
 			XFS_MOUNT_IUNLOCK(mp);
-			kmem_free(ipointer, sizeof(xfs_iptr_t));
+			kmem_free(ipointer);
 			return 0;
 		}
 
@@ -1194,7 +590,7 @@ xfs_sync_inodes(
 			}
 			XFS_MOUNT_IUNLOCK(mp);
 			ASSERT(ipointer_in == B_FALSE);
-			kmem_free(ipointer, sizeof(xfs_iptr_t));
+			kmem_free(ipointer);
 			return XFS_ERROR(error);
 		}
 
@@ -1224,7 +620,7 @@ xfs_sync_inodes(
 
 	ASSERT(ipointer_in == B_FALSE);
 
-	kmem_free(ipointer, sizeof(xfs_iptr_t));
+	kmem_free(ipointer);
 	return XFS_ERROR(last_error);
 }
 

fs/xfs/xfs_vfsops.h

@@ -8,11 +8,6 @@ struct kstatfs;
 struct xfs_mount;
 struct xfs_mount_args;
 
-int xfs_mount(struct xfs_mount *mp, struct xfs_mount_args *args,
-		struct cred *credp);
-int xfs_unmount(struct xfs_mount *mp, int flags, struct cred *credp);
-int xfs_mntupdate(struct xfs_mount *mp, int *flags,
-		struct xfs_mount_args *args);
 int xfs_sync(struct xfs_mount *mp, int flags);
 void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
 		int lnnum);

fs/xfs/xfs_vnodeops.h

@@ -2,9 +2,9 @@
 #define _XFS_VNODEOPS_H 1
 
 struct attrlist_cursor_kern;
-struct bhv_vattr;
 struct cred;
 struct file;
+struct iattr;
 struct inode;
 struct iovec;
 struct kiocb;
@@ -15,14 +15,18 @@ struct xfs_iomap;
 
 
 int xfs_open(struct xfs_inode *ip);
-int xfs_setattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags,
+int xfs_setattr(struct xfs_inode *ip, struct iattr *vap, int flags,
 		struct cred *credp);
+#define	XFS_ATTR_DMI		0x01	/* invocation from a DMI function */
+#define	XFS_ATTR_NONBLOCK	0x02	/* return EAGAIN if operation would block */
+#define XFS_ATTR_NOLOCK		0x04	/* Don't grab any conflicting locks */
+
 int xfs_readlink(struct xfs_inode *ip, char *link);
 int xfs_fsync(struct xfs_inode *ip);
 int xfs_release(struct xfs_inode *ip);
 int xfs_inactive(struct xfs_inode *ip);
 int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
-		struct xfs_inode **ipp);
+		struct xfs_inode **ipp, struct xfs_name *ci_name);
 int xfs_create(struct xfs_inode *dp, struct xfs_name *name, mode_t mode,
 		xfs_dev_t rdev, struct xfs_inode **ipp, struct cred *credp);
 int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
@@ -31,8 +35,6 @@ int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
 		struct xfs_name *target_name);
 int xfs_mkdir(struct xfs_inode *dp, struct xfs_name *dir_name,
 		mode_t mode, struct xfs_inode **ipp, struct cred *credp);
-int xfs_rmdir(struct xfs_inode *dp, struct xfs_name *name,
-		struct xfs_inode *cdp);
 int xfs_readdir(struct xfs_inode	*dp, void *dirent, size_t bufsize,
 		       xfs_off_t *offset, filldir_t filldir);
 int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,

include/linux/dcache.h

@@ -230,6 +230,7 @@ extern void d_delete(struct dentry *);
 extern struct dentry * d_alloc(struct dentry *, const struct qstr *);
 extern struct dentry * d_alloc_anon(struct inode *);
 extern struct dentry * d_splice_alias(struct inode *, struct dentry *);
+extern struct dentry * d_add_ci(struct inode *, struct dentry *, struct qstr *);
 extern void shrink_dcache_sb(struct super_block *);
 extern void shrink_dcache_parent(struct dentry *);
 extern void shrink_dcache_for_umount(struct super_block *);