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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_buf.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c62
1 files changed, 11 insertions, 51 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 660c24acb64..e22cce1a9d5 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1,46 +1,20 @@
/*
- * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * 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.
+ * 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.
*
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * 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
*/
-
-/*
- * The xfs_buf.c code provides an abstract buffer cache model on top
- * of the Linux page cache. Cached metadata blocks for a file system
- * are hashed to the inode for the block device. xfs_buf.c assembles
- * buffers (xfs_buf_t) on demand to aggregate such cached pages for I/O.
- *
- * Written by Steve Lord, Jim Mostek, Russell Cattelan
- * and Rajagopal Ananthanarayanan ("ananth") at SGI.
- *
- */
-
#include <linux/stddef.h>
#include <linux/errno.h>
#include <linux/slab.h>
@@ -55,13 +29,8 @@
#include <linux/blkdev.h>
#include <linux/hash.h>
#include <linux/kthread.h>
-
#include "xfs_linux.h"
-/*
- * File wide globals
- */
-
STATIC kmem_cache_t *pagebuf_zone;
STATIC kmem_shaker_t pagebuf_shake;
STATIC int xfsbufd_wakeup(int, gfp_t);
@@ -70,10 +39,6 @@ STATIC void pagebuf_delwri_queue(xfs_buf_t *, int);
STATIC struct workqueue_struct *xfslogd_workqueue;
struct workqueue_struct *xfsdatad_workqueue;
-/*
- * Pagebuf debugging
- */
-
#ifdef PAGEBUF_TRACE
void
pagebuf_trace(
@@ -112,10 +77,6 @@ ktrace_t *pagebuf_trace_buf;
# define PB_GET_OWNER(pb) do { } while (0)
#endif
-/*
- * Pagebuf allocation / freeing.
- */
-
#define pb_to_gfp(flags) \
((((flags) & PBF_READ_AHEAD) ? __GFP_NORETRY : \
((flags) & PBF_DONT_BLOCK) ? GFP_NOFS : GFP_KERNEL) | __GFP_NOWARN)
@@ -123,7 +84,6 @@ ktrace_t *pagebuf_trace_buf;
#define pb_to_km(flags) \
(((flags) & PBF_DONT_BLOCK) ? KM_NOFS : KM_SLEEP)
-
#define pagebuf_allocate(flags) \
kmem_zone_alloc(pagebuf_zone, pb_to_km(flags))
#define pagebuf_deallocate(pb) \