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[PATCH] map multiple blocks for mpage_readpages()

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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>
This commit is contained in:
Badari Pulavarty
2006-03-26 01:38:01 -08:00
committed by Linus Torvalds
parent b0cf2321c6
commit fa30bd058b
3 changed files with 90 additions and 22 deletions
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5
fs/xfs/linux-2.6/xfs_aops.c
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@ -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