From fa30bd058b746c0e2318a77ff8b4977faa924c2c Mon Sep 17 00:00:00 2001
From: Badari Pulavarty <pbadari@us.ibm.com>
Date: Sun, 26 Mar 2006 01:38:01 -0800
Subject: [PATCH] map multiple blocks for mpage_readpages()
This patch changes mpage_readpages() and get_block() to get the disk mapping
information for multiple blocks at the same time.
b_size represents the amount of disk mapping that needs to mapped. On the
successful get_block() b_size indicates the amount of disk mapping thats
actually mapped. Only the filesystems who care to use this information and
provide multiple disk blocks at a time can choose to do so.
No changes are needed for the filesystems who wants to ignore this.
[akpm@osdl.org: cleanups]
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
fs/xfs/linux-2.6/xfs_aops.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
(limited to 'fs/xfs')
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 4f2476f188..a79b84f8b5 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1310,8 +1310,9 @@ xfs_get_block(
struct buffer_head *bh_result,
int create)
{
- return __xfs_get_block(inode, iblock, 0, bh_result,
- create, 0, BMAPI_WRITE);
+ return __xfs_get_block(inode, iblock,
+ bh_result->b_size >> inode->i_blkbits,
+ bh_result, create, 0, BMAPI_WRITE);
}
STATIC int
--
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