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xfs: use GFP_NOFS for page cache allocation 

Avoid a lockdep warning by preventing page cache allocation from
recursing back into the filesystem during memory reclaim.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2010-07-20 17:54:12 +10:00 committed by Alex Elder
parent 4a7edddcb5
commit aea1b95321
1 changed files with 2 additions and 2 deletions
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4
fs/xfs/linux-2.6/xfs_aops.c
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@ -1493,8 +1493,8 @@ xfs_vm_write_begin(
void **fsdata)
{
*pagep = NULL;
return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
xfs_get_blocks);
return block_write_begin(file, mapping, pos, len, flags | AOP_FLAG_NOFS,
pagep, fsdata, xfs_get_blocks);
}
STATIC sector_t