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@@ -125,6 +125,38 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
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return res;
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return res;
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}
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}
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+int v9fs_uflags2omode(int uflags)
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+{
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+ int ret;
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+
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+ ret = 0;
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+ switch (uflags&3) {
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+ default:
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+ case O_RDONLY:
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+ ret = V9FS_OREAD;
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+ break;
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+
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+ case O_WRONLY:
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+ ret = V9FS_OWRITE;
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+ break;
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+
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+ case O_RDWR:
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+ ret = V9FS_ORDWR;
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+ break;
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+ }
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+
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+ if (uflags & O_EXCL)
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+ ret |= V9FS_OEXCL;
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+
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+ if (uflags & O_TRUNC)
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+ ret |= V9FS_OTRUNC;
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+
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+ if (uflags & O_APPEND)
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+ ret |= V9FS_OAPPEND;
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+
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+ return ret;
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+}
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+
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/**
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/**
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* v9fs_blank_wstat - helper function to setup a 9P stat structure
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* v9fs_blank_wstat - helper function to setup a 9P stat structure
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* @v9ses: 9P session info (for determining extended mode)
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* @v9ses: 9P session info (for determining extended mode)
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@@ -163,7 +195,7 @@ v9fs_blank_wstat(struct v9fs_wstat *wstat)
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struct inode *v9fs_get_inode(struct super_block *sb, int mode)
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struct inode *v9fs_get_inode(struct super_block *sb, int mode)
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{
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{
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- struct inode *inode = NULL;
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+ struct inode *inode;
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struct v9fs_session_info *v9ses = sb->s_fs_info;
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struct v9fs_session_info *v9ses = sb->s_fs_info;
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dprintk(DEBUG_VFS, "super block: %p mode: %o\n", sb, mode);
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dprintk(DEBUG_VFS, "super block: %p mode: %o\n", sb, mode);
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@@ -222,171 +254,135 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
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return inode;
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return inode;
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}
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}
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-/**
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- * v9fs_create - helper function to create files and directories
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- * @dir: directory inode file is being created in
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- * @file_dentry: dentry file is being created in
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- * @perm: permissions file is being created with
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- * @open_mode: resulting open mode for file
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- *
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- */
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-
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static int
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static int
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-v9fs_create(struct inode *dir,
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- struct dentry *file_dentry,
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- unsigned int perm, unsigned int open_mode)
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+v9fs_create(struct v9fs_session_info *v9ses, u32 pfid, char *name,
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+ u32 perm, u8 mode, u32 *fidp, struct v9fs_qid *qid, u32 *iounit)
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{
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{
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- struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir);
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- struct super_block *sb = dir->i_sb;
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- struct v9fs_fid *dirfid =
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- v9fs_fid_lookup(file_dentry->d_parent);
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- struct v9fs_fid *fid = NULL;
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- struct inode *file_inode = NULL;
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- struct v9fs_fcall *fcall = NULL;
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- struct v9fs_qid qid;
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- int dirfidnum = -1;
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- long newfid = -1;
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- int result = 0;
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- unsigned int iounit = 0;
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- int wfidno = -1;
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+ u32 fid;
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int err;
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int err;
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+ struct v9fs_fcall *fcall;
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- perm = unixmode2p9mode(v9ses, perm);
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-
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- dprintk(DEBUG_VFS, "dir: %p dentry: %p perm: %o mode: %o\n", dir,
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- file_dentry, perm, open_mode);
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-
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- if (!dirfid)
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- return -EBADF;
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-
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- dirfidnum = dirfid->fid;
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- if (dirfidnum < 0) {
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- dprintk(DEBUG_ERROR, "No fid for the directory #%lu\n",
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- dir->i_ino);
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- return -EBADF;
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- }
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-
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- if (file_dentry->d_inode) {
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- dprintk(DEBUG_ERROR,
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- "Odd. There is an inode for dir %lu, name :%s:\n",
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- dir->i_ino, file_dentry->d_name.name);
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- return -EEXIST;
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- }
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-
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- newfid = v9fs_get_idpool(&v9ses->fidpool);
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- if (newfid < 0) {
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+ fid = v9fs_get_idpool(&v9ses->fidpool);
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+ if (fid < 0) {
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eprintk(KERN_WARNING, "no free fids available\n");
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eprintk(KERN_WARNING, "no free fids available\n");
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- return -ENOSPC;
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+ err = -ENOSPC;
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+ goto error;
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}
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}
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- result = v9fs_t_walk(v9ses, dirfidnum, newfid, NULL, &fcall);
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- if (result < 0) {
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+ err = v9fs_t_walk(v9ses, pfid, fid, NULL, &fcall);
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+ if (err < 0) {
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PRINT_FCALL_ERROR("clone error", fcall);
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PRINT_FCALL_ERROR("clone error", fcall);
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- v9fs_put_idpool(newfid, &v9ses->fidpool);
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- newfid = -1;
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- goto CleanUpFid;
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+ goto error;
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}
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}
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-
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kfree(fcall);
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kfree(fcall);
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- fcall = NULL;
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- result = v9fs_t_create(v9ses, newfid, (char *)file_dentry->d_name.name,
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- perm, open_mode, &fcall);
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- if (result < 0) {
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+ err = v9fs_t_create(v9ses, fid, name, perm, mode, &fcall);
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+ if (err < 0) {
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PRINT_FCALL_ERROR("create fails", fcall);
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PRINT_FCALL_ERROR("create fails", fcall);
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- goto CleanUpFid;
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+ goto error;
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}
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}
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- iounit = fcall->params.rcreate.iounit;
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- qid = fcall->params.rcreate.qid;
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+ if (iounit)
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+ *iounit = fcall->params.rcreate.iounit;
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+
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+ if (qid)
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+ *qid = fcall->params.rcreate.qid;
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+
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+ if (fidp)
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+ *fidp = fid;
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+
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kfree(fcall);
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kfree(fcall);
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- fcall = NULL;
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+ return 0;
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- if (!(perm&V9FS_DMDIR)) {
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- fid = v9fs_fid_create(file_dentry, v9ses, newfid, 1);
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- dprintk(DEBUG_VFS, "fid %p %d\n", fid, fid->fidcreate);
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- if (!fid) {
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- result = -ENOMEM;
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- goto CleanUpFid;
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- }
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+error:
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+ if (fid >= 0)
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+ v9fs_put_idpool(fid, &v9ses->fidpool);
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- fid->qid = qid;
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- fid->iounit = iounit;
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- } else {
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- err = v9fs_t_clunk(v9ses, newfid);
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- newfid = -1;
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- if (err < 0)
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- dprintk(DEBUG_ERROR, "clunk for mkdir failed: %d\n", err);
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- }
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+ kfree(fcall);
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+ return err;
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+}
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+
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+static struct v9fs_fid*
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+v9fs_clone_walk(struct v9fs_session_info *v9ses, u32 fid, struct dentry *dentry)
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+{
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+ int err;
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+ u32 nfid;
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+ struct v9fs_fid *ret;
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+ struct v9fs_fcall *fcall;
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- /* walk to the newly created file and put the fid in the dentry */
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- wfidno = v9fs_get_idpool(&v9ses->fidpool);
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- if (wfidno < 0) {
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+ nfid = v9fs_get_idpool(&v9ses->fidpool);
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+ if (nfid < 0) {
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eprintk(KERN_WARNING, "no free fids available\n");
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eprintk(KERN_WARNING, "no free fids available\n");
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- return -ENOSPC;
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+ err = -ENOSPC;
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+ goto error;
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}
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}
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- result = v9fs_t_walk(v9ses, dirfidnum, wfidno,
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- (char *) file_dentry->d_name.name, &fcall);
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- if (result < 0) {
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- PRINT_FCALL_ERROR("clone error", fcall);
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- v9fs_put_idpool(wfidno, &v9ses->fidpool);
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- wfidno = -1;
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- goto CleanUpFid;
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+ err = v9fs_t_walk(v9ses, fid, nfid, (char *) dentry->d_name.name,
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+ &fcall);
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+
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+ if (err < 0) {
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+ PRINT_FCALL_ERROR("walk error", fcall);
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+ v9fs_put_idpool(nfid, &v9ses->fidpool);
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+ goto error;
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}
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}
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+
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kfree(fcall);
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kfree(fcall);
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fcall = NULL;
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fcall = NULL;
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+ ret = v9fs_fid_create(v9ses, nfid);
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+ if (!ret) {
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+ err = -ENOMEM;
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+ goto clunk_fid;
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+ }
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- if (!v9fs_fid_create(file_dentry, v9ses, wfidno, 0)) {
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- v9fs_put_idpool(wfidno, &v9ses->fidpool);
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-
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- goto CleanUpFid;
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+ err = v9fs_fid_insert(ret, dentry);
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+ if (err < 0) {
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+ v9fs_fid_destroy(ret);
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+ goto clunk_fid;
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}
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}
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- if ((perm & V9FS_DMSYMLINK) || (perm & V9FS_DMLINK) ||
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- (perm & V9FS_DMNAMEDPIPE) || (perm & V9FS_DMSOCKET) ||
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- (perm & V9FS_DMDEVICE))
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- return 0;
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+ return ret;
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- result = v9fs_t_stat(v9ses, wfidno, &fcall);
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- if (result < 0) {
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- PRINT_FCALL_ERROR("stat error", fcall);
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- goto CleanUpFid;
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- }
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+clunk_fid:
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+ v9fs_t_clunk(v9ses, nfid);
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+
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+error:
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+ kfree(fcall);
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+ return ERR_PTR(err);
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+}
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+struct inode *
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+v9fs_inode_from_fid(struct v9fs_session_info *v9ses, u32 fid,
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+ struct super_block *sb)
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+{
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+ int err, umode;
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+ struct inode *ret;
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+ struct v9fs_fcall *fcall;
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- file_inode = v9fs_get_inode(sb,
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- p9mode2unixmode(v9ses, fcall->params.rstat.stat.mode));
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+ ret = NULL;
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+ err = v9fs_t_stat(v9ses, fid, &fcall);
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+ if (err) {
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+ PRINT_FCALL_ERROR("stat error", fcall);
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+ goto error;
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+ }
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- if ((!file_inode) || IS_ERR(file_inode)) {
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- dprintk(DEBUG_ERROR, "create inode failed\n");
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- result = -EBADF;
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- goto CleanUpFid;
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+ umode = p9mode2unixmode(v9ses, fcall->params.rstat.stat.mode);
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+ ret = v9fs_get_inode(sb, umode);
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+ if (IS_ERR(ret)) {
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+ err = PTR_ERR(ret);
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+ ret = NULL;
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+ goto error;
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}
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}
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- v9fs_stat2inode(&fcall->params.rstat.stat, file_inode, sb);
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+ v9fs_stat2inode(&fcall->params.rstat.stat, ret, sb);
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kfree(fcall);
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kfree(fcall);
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- fcall = NULL;
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- file_dentry->d_op = &v9fs_dentry_operations;
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- d_instantiate(file_dentry, file_inode);
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-
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- return 0;
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+ return ret;
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- CleanUpFid:
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+error:
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kfree(fcall);
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kfree(fcall);
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- fcall = NULL;
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+ if (ret)
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+ iput(ret);
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- if (newfid >= 0) {
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- err = v9fs_t_clunk(v9ses, newfid);
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- if (err < 0)
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- dprintk(DEBUG_ERROR, "clunk failed: %d\n", err);
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- }
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- if (wfidno >= 0) {
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- err = v9fs_t_clunk(v9ses, wfidno);
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- if (err < 0)
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- dprintk(DEBUG_ERROR, "clunk failed: %d\n", err);
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- }
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- return result;
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+ return ERR_PTR(err);
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}
|
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}
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|
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|
|
/**
|
|
/**
|
|
@@ -440,20 +436,97 @@ static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
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return result;
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return result;
|
|
}
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}
|
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|
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|
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+static int
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|
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+v9fs_open_created(struct inode *inode, struct file *file)
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|
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+{
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+ return 0;
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|
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+}
|
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|
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+
|
|
/**
|
|
/**
|
|
* v9fs_vfs_create - VFS hook to create files
|
|
* v9fs_vfs_create - VFS hook to create files
|
|
* @inode: directory inode that is being deleted
|
|
* @inode: directory inode that is being deleted
|
|
* @dentry: dentry that is being deleted
|
|
* @dentry: dentry that is being deleted
|
|
- * @perm: create permissions
|
|
|
|
|
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+ * @mode: create permissions
|
|
* @nd: path information
|
|
* @nd: path information
|
|
*
|
|
*
|
|
*/
|
|
*/
|
|
|
|
|
|
static int
|
|
static int
|
|
-v9fs_vfs_create(struct inode *inode, struct dentry *dentry, int perm,
|
|
|
|
|
|
+v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
|
|
struct nameidata *nd)
|
|
struct nameidata *nd)
|
|
{
|
|
{
|
|
- return v9fs_create(inode, dentry, perm, O_RDWR);
|
|
|
|
|
|
+ int err;
|
|
|
|
+ u32 fid, perm, iounit;
|
|
|
|
+ int flags;
|
|
|
|
+ struct v9fs_session_info *v9ses;
|
|
|
|
+ struct v9fs_fid *dfid, *vfid, *ffid;
|
|
|
|
+ struct inode *inode;
|
|
|
|
+ struct v9fs_qid qid;
|
|
|
|
+ struct file *filp;
|
|
|
|
+
|
|
|
|
+ inode = NULL;
|
|
|
|
+ vfid = NULL;
|
|
|
|
+ v9ses = v9fs_inode2v9ses(dir);
|
|
|
|
+ dfid = v9fs_fid_lookup(dentry->d_parent);
|
|
|
|
+ perm = unixmode2p9mode(v9ses, mode);
|
|
|
|
+
|
|
|
|
+ if (nd && nd->flags & LOOKUP_OPEN)
|
|
|
|
+ flags = nd->intent.open.flags - 1;
|
|
|
|
+ else
|
|
|
|
+ flags = O_RDWR;
|
|
|
|
+
|
|
|
|
+ err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name,
|
|
|
|
+ perm, v9fs_uflags2omode(flags), &fid, &qid, &iounit);
|
|
|
|
+
|
|
|
|
+ if (err)
|
|
|
|
+ goto error;
|
|
|
|
+
|
|
|
|
+ vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry);
|
|
|
|
+ if (IS_ERR(vfid)) {
|
|
|
|
+ err = PTR_ERR(vfid);
|
|
|
|
+ vfid = NULL;
|
|
|
|
+ goto error;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
|
|
|
|
+ if (IS_ERR(inode)) {
|
|
|
|
+ err = PTR_ERR(inode);
|
|
|
|
+ inode = NULL;
|
|
|
|
+ goto error;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ dentry->d_op = &v9fs_dentry_operations;
|
|
|
|
+ d_instantiate(dentry, inode);
|
|
|
|
+
|
|
|
|
+ if (nd && nd->flags & LOOKUP_OPEN) {
|
|
|
|
+ ffid = v9fs_fid_create(v9ses, fid);
|
|
|
|
+ if (!ffid)
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+
|
|
|
|
+ filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created);
|
|
|
|
+ if (IS_ERR(filp)) {
|
|
|
|
+ v9fs_fid_destroy(ffid);
|
|
|
|
+ return PTR_ERR(filp);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ ffid->rdir_pos = 0;
|
|
|
|
+ ffid->rdir_fcall = NULL;
|
|
|
|
+ ffid->fidopen = 1;
|
|
|
|
+ ffid->iounit = iounit;
|
|
|
|
+ ffid->filp = filp;
|
|
|
|
+ filp->private_data = ffid;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+error:
|
|
|
|
+ if (vfid)
|
|
|
|
+ v9fs_fid_destroy(vfid);
|
|
|
|
+
|
|
|
|
+ if (inode)
|
|
|
|
+ iput(inode);
|
|
|
|
+
|
|
|
|
+ return err;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
/**
|
|
@@ -464,9 +537,57 @@ v9fs_vfs_create(struct inode *inode, struct dentry *dentry, int perm,
|
|
*
|
|
*
|
|
*/
|
|
*/
|
|
|
|
|
|
-static int v9fs_vfs_mkdir(struct inode *inode, struct dentry *dentry, int mode)
|
|
|
|
|
|
+static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
|
|
{
|
|
{
|
|
- return v9fs_create(inode, dentry, mode | S_IFDIR, O_RDONLY);
|
|
|
|
|
|
+ int err;
|
|
|
|
+ u32 fid, perm;
|
|
|
|
+ struct v9fs_session_info *v9ses;
|
|
|
|
+ struct v9fs_fid *dfid, *vfid;
|
|
|
|
+ struct inode *inode;
|
|
|
|
+
|
|
|
|
+ inode = NULL;
|
|
|
|
+ vfid = NULL;
|
|
|
|
+ v9ses = v9fs_inode2v9ses(dir);
|
|
|
|
+ dfid = v9fs_fid_lookup(dentry->d_parent);
|
|
|
|
+ perm = unixmode2p9mode(v9ses, mode | S_IFDIR);
|
|
|
|
+
|
|
|
|
+ err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name,
|
|
|
|
+ perm, V9FS_OREAD, &fid, NULL, NULL);
|
|
|
|
+
|
|
|
|
+ if (err) {
|
|
|
|
+ dprintk(DEBUG_ERROR, "create error %d\n", err);
|
|
|
|
+ goto error;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ err = v9fs_t_clunk(v9ses, fid);
|
|
|
|
+ if (err) {
|
|
|
|
+ dprintk(DEBUG_ERROR, "clunk error %d\n", err);
|
|
|
|
+ goto error;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry);
|
|
|
|
+ if (IS_ERR(vfid)) {
|
|
|
|
+ err = PTR_ERR(vfid);
|
|
|
|
+ vfid = NULL;
|
|
|
|
+ goto error;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
|
|
|
|
+ if (IS_ERR(inode)) {
|
|
|
|
+ err = PTR_ERR(inode);
|
|
|
|
+ inode = NULL;
|
|
|
|
+ goto error;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ dentry->d_op = &v9fs_dentry_operations;
|
|
|
|
+ d_instantiate(dentry, inode);
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+error:
|
|
|
|
+ if (vfid)
|
|
|
|
+ v9fs_fid_destroy(vfid);
|
|
|
|
+
|
|
|
|
+ return err;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
/**
|
|
@@ -516,9 +637,8 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
|
|
return ERR_PTR(-ENOSPC);
|
|
return ERR_PTR(-ENOSPC);
|
|
}
|
|
}
|
|
|
|
|
|
- result =
|
|
|
|
- v9fs_t_walk(v9ses, dirfidnum, newfid, (char *)dentry->d_name.name,
|
|
|
|
- NULL);
|
|
|
|
|
|
+ result = v9fs_t_walk(v9ses, dirfidnum, newfid,
|
|
|
|
+ (char *)dentry->d_name.name, NULL);
|
|
if (result < 0) {
|
|
if (result < 0) {
|
|
v9fs_put_idpool(newfid, &v9ses->fidpool);
|
|
v9fs_put_idpool(newfid, &v9ses->fidpool);
|
|
if (result == -ENOENT) {
|
|
if (result == -ENOENT) {
|
|
@@ -551,13 +671,17 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
|
|
|
|
|
|
inode->i_ino = v9fs_qid2ino(&fcall->params.rstat.stat.qid);
|
|
inode->i_ino = v9fs_qid2ino(&fcall->params.rstat.stat.qid);
|
|
|
|
|
|
- fid = v9fs_fid_create(dentry, v9ses, newfid, 0);
|
|
|
|
|
|
+ fid = v9fs_fid_create(v9ses, newfid);
|
|
if (fid == NULL) {
|
|
if (fid == NULL) {
|
|
dprintk(DEBUG_ERROR, "couldn't insert\n");
|
|
dprintk(DEBUG_ERROR, "couldn't insert\n");
|
|
result = -ENOMEM;
|
|
result = -ENOMEM;
|
|
goto FreeFcall;
|
|
goto FreeFcall;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
+ result = v9fs_fid_insert(fid, dentry);
|
|
|
|
+ if (result < 0)
|
|
|
|
+ goto FreeFcall;
|
|
|
|
+
|
|
fid->qid = fcall->params.rstat.stat.qid;
|
|
fid->qid = fcall->params.rstat.stat.qid;
|
|
|
|
|
|
dentry->d_op = &v9fs_dentry_operations;
|
|
dentry->d_op = &v9fs_dentry_operations;
|
|
@@ -886,8 +1010,8 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
|
|
}
|
|
}
|
|
|
|
|
|
/* copy extension buffer into buffer */
|
|
/* copy extension buffer into buffer */
|
|
- if (fcall->params.rstat.stat.extension.len+1 < buflen)
|
|
|
|
- buflen = fcall->params.rstat.stat.extension.len + 1;
|
|
|
|
|
|
+ if (fcall->params.rstat.stat.extension.len < buflen)
|
|
|
|
+ buflen = fcall->params.rstat.stat.extension.len;
|
|
|
|
|
|
memcpy(buffer, fcall->params.rstat.stat.extension.str, buflen - 1);
|
|
memcpy(buffer, fcall->params.rstat.stat.extension.str, buflen - 1);
|
|
buffer[buflen-1] = 0;
|
|
buffer[buflen-1] = 0;
|
|
@@ -951,7 +1075,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
|
|
if (!link)
|
|
if (!link)
|
|
link = ERR_PTR(-ENOMEM);
|
|
link = ERR_PTR(-ENOMEM);
|
|
else {
|
|
else {
|
|
- len = v9fs_readlink(dentry, link, PATH_MAX);
|
|
|
|
|
|
+ len = v9fs_readlink(dentry, link, strlen(link));
|
|
|
|
|
|
if (len < 0) {
|
|
if (len < 0) {
|
|
__putname(link);
|
|
__putname(link);
|
|
@@ -983,53 +1107,75 @@ static void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void
|
|
static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
|
|
static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
|
|
int mode, const char *extension)
|
|
int mode, const char *extension)
|
|
{
|
|
{
|
|
- int err, retval;
|
|
|
|
|
|
+ int err;
|
|
|
|
+ u32 fid, perm;
|
|
struct v9fs_session_info *v9ses;
|
|
struct v9fs_session_info *v9ses;
|
|
|
|
+ struct v9fs_fid *dfid, *vfid;
|
|
|
|
+ struct inode *inode;
|
|
struct v9fs_fcall *fcall;
|
|
struct v9fs_fcall *fcall;
|
|
- struct v9fs_fid *fid;
|
|
|
|
struct v9fs_wstat wstat;
|
|
struct v9fs_wstat wstat;
|
|
|
|
|
|
- v9ses = v9fs_inode2v9ses(dir);
|
|
|
|
- retval = -EPERM;
|
|
|
|
fcall = NULL;
|
|
fcall = NULL;
|
|
|
|
+ inode = NULL;
|
|
|
|
+ vfid = NULL;
|
|
|
|
+ v9ses = v9fs_inode2v9ses(dir);
|
|
|
|
+ dfid = v9fs_fid_lookup(dentry->d_parent);
|
|
|
|
+ perm = unixmode2p9mode(v9ses, mode);
|
|
|
|
|
|
if (!v9ses->extended) {
|
|
if (!v9ses->extended) {
|
|
dprintk(DEBUG_ERROR, "not extended\n");
|
|
dprintk(DEBUG_ERROR, "not extended\n");
|
|
- goto free_mem;
|
|
|
|
|
|
+ return -EPERM;
|
|
}
|
|
}
|
|
|
|
|
|
- /* issue a create */
|
|
|
|
- retval = v9fs_create(dir, dentry, mode, 0);
|
|
|
|
- if (retval != 0)
|
|
|
|
- goto free_mem;
|
|
|
|
|
|
+ err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name,
|
|
|
|
+ perm, V9FS_OREAD, &fid, NULL, NULL);
|
|
|
|
|
|
- fid = v9fs_fid_get_created(dentry);
|
|
|
|
- if (!fid) {
|
|
|
|
- dprintk(DEBUG_ERROR, "couldn't resolve fid from dentry\n");
|
|
|
|
- goto free_mem;
|
|
|
|
|
|
+ if (err)
|
|
|
|
+ goto error;
|
|
|
|
+
|
|
|
|
+ err = v9fs_t_clunk(v9ses, fid);
|
|
|
|
+ if (err)
|
|
|
|
+ goto error;
|
|
|
|
+
|
|
|
|
+ vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry);
|
|
|
|
+ if (IS_ERR(vfid)) {
|
|
|
|
+ err = PTR_ERR(vfid);
|
|
|
|
+ vfid = NULL;
|
|
|
|
+ goto error;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
|
|
|
|
+ if (IS_ERR(inode)) {
|
|
|
|
+ err = PTR_ERR(inode);
|
|
|
|
+ inode = NULL;
|
|
|
|
+ goto error;
|
|
}
|
|
}
|
|
|
|
|
|
/* issue a Twstat */
|
|
/* issue a Twstat */
|
|
v9fs_blank_wstat(&wstat);
|
|
v9fs_blank_wstat(&wstat);
|
|
wstat.muid = v9ses->name;
|
|
wstat.muid = v9ses->name;
|
|
wstat.extension = (char *) extension;
|
|
wstat.extension = (char *) extension;
|
|
- retval = v9fs_t_wstat(v9ses, fid->fid, &wstat, &fcall);
|
|
|
|
- if (retval < 0) {
|
|
|
|
- PRINT_FCALL_ERROR("wstat error", fcall);
|
|
|
|
- goto free_mem;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- err = v9fs_t_clunk(v9ses, fid->fid);
|
|
|
|
|
|
+ err = v9fs_t_wstat(v9ses, vfid->fid, &wstat, &fcall);
|
|
if (err < 0) {
|
|
if (err < 0) {
|
|
- dprintk(DEBUG_ERROR, "clunk failed: %d\n", err);
|
|
|
|
- goto free_mem;
|
|
|
|
|
|
+ PRINT_FCALL_ERROR("wstat error", fcall);
|
|
|
|
+ goto error;
|
|
}
|
|
}
|
|
|
|
|
|
- d_drop(dentry); /* FID - will this also clunk? */
|
|
|
|
|
|
+ kfree(fcall);
|
|
|
|
+ dentry->d_op = &v9fs_dentry_operations;
|
|
|
|
+ d_instantiate(dentry, inode);
|
|
|
|
+ return 0;
|
|
|
|
|
|
-free_mem:
|
|
|
|
|
|
+error:
|
|
kfree(fcall);
|
|
kfree(fcall);
|
|
- return retval;
|
|
|
|
|
|
+ if (vfid)
|
|
|
|
+ v9fs_fid_destroy(vfid);
|
|
|
|
+
|
|
|
|
+ if (inode)
|
|
|
|
+ iput(inode);
|
|
|
|
+
|
|
|
|
+ return err;
|
|
|
|
+
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
/**
|