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@@ -1,46 +1,20 @@
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/*
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/*
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- * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
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+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
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+ * All Rights Reserved.
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*
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*
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of version 2 of the GNU General Public License as
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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* published by the Free Software Foundation.
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*
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*
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- * This program is distributed in the hope that it would be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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+ * This program is distributed in the hope that it would be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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*
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*
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- * Further, this software is distributed without any warranty that it is
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- * free of the rightful claim of any third person regarding infringement
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- * or the like. Any license provided herein, whether implied or
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- * otherwise, applies only to this software file. Patent licenses, if
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- * any, provided herein do not apply to combinations of this program with
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- * other software, or any other product whatsoever.
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- *
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- * You should have received a copy of the GNU General Public License along
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- * with this program; if not, write the Free Software Foundation, Inc., 59
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- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
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- *
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- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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- * Mountain View, CA 94043, or:
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- *
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- * http://www.sgi.com
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- *
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- * For further information regarding this notice, see:
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- *
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- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write the Free Software Foundation,
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+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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*/
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-
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-/*
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- * The xfs_buf.c code provides an abstract buffer cache model on top
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- * of the Linux page cache. Cached metadata blocks for a file system
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- * are hashed to the inode for the block device. xfs_buf.c assembles
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- * buffers (xfs_buf_t) on demand to aggregate such cached pages for I/O.
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- *
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- * Written by Steve Lord, Jim Mostek, Russell Cattelan
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- * and Rajagopal Ananthanarayanan ("ananth") at SGI.
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- *
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- */
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-
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#include <linux/stddef.h>
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#include <linux/stddef.h>
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#include <linux/errno.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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@@ -55,13 +29,8 @@
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#include <linux/blkdev.h>
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#include <linux/blkdev.h>
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#include <linux/hash.h>
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#include <linux/hash.h>
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#include <linux/kthread.h>
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#include <linux/kthread.h>
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-
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#include "xfs_linux.h"
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#include "xfs_linux.h"
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-/*
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- * File wide globals
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- */
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-
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STATIC kmem_cache_t *pagebuf_zone;
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STATIC kmem_cache_t *pagebuf_zone;
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STATIC kmem_shaker_t pagebuf_shake;
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STATIC kmem_shaker_t pagebuf_shake;
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STATIC int xfsbufd_wakeup(int, gfp_t);
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STATIC int xfsbufd_wakeup(int, gfp_t);
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@@ -70,10 +39,6 @@ STATIC void pagebuf_delwri_queue(xfs_buf_t *, int);
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STATIC struct workqueue_struct *xfslogd_workqueue;
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STATIC struct workqueue_struct *xfslogd_workqueue;
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struct workqueue_struct *xfsdatad_workqueue;
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struct workqueue_struct *xfsdatad_workqueue;
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-/*
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- * Pagebuf debugging
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- */
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-
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#ifdef PAGEBUF_TRACE
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#ifdef PAGEBUF_TRACE
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void
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void
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pagebuf_trace(
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pagebuf_trace(
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@@ -112,10 +77,6 @@ ktrace_t *pagebuf_trace_buf;
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# define PB_GET_OWNER(pb) do { } while (0)
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# define PB_GET_OWNER(pb) do { } while (0)
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#endif
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#endif
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-/*
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- * Pagebuf allocation / freeing.
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- */
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-
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#define pb_to_gfp(flags) \
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#define pb_to_gfp(flags) \
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((((flags) & PBF_READ_AHEAD) ? __GFP_NORETRY : \
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((((flags) & PBF_READ_AHEAD) ? __GFP_NORETRY : \
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((flags) & PBF_DONT_BLOCK) ? GFP_NOFS : GFP_KERNEL) | __GFP_NOWARN)
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((flags) & PBF_DONT_BLOCK) ? GFP_NOFS : GFP_KERNEL) | __GFP_NOWARN)
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@@ -123,7 +84,6 @@ ktrace_t *pagebuf_trace_buf;
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#define pb_to_km(flags) \
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#define pb_to_km(flags) \
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(((flags) & PBF_DONT_BLOCK) ? KM_NOFS : KM_SLEEP)
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(((flags) & PBF_DONT_BLOCK) ? KM_NOFS : KM_SLEEP)
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-
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#define pagebuf_allocate(flags) \
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#define pagebuf_allocate(flags) \
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kmem_zone_alloc(pagebuf_zone, pb_to_km(flags))
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kmem_zone_alloc(pagebuf_zone, pb_to_km(flags))
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#define pagebuf_deallocate(pb) \
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#define pagebuf_deallocate(pb) \
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