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xfs: re-enable non-blocking behaviour in xfs_map_blocks

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The non-blockig behaviour in xfs_vm_writepage currently is conditional on
having both the WB_SYNC_NONE sync_mode and the nonblocking flag set.
The latter used to be used by both pdflush, kswapd and a few other places
in older kernels, but has been fading out starting with the introduction
of the per-bdi flusher threads.

Enable the non-blocking behaviour for all WB_SYNC_NONE calls to get back
the behaviour we want.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Christoph Hellwig 2011-07-08 14:34:14 +02:00
parent 680a647b49
commit dbcdde3e76
1 changed files with 1 additions and 1 deletions
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2
fs/xfs/linux-2.6/xfs_aops.c
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@ -959,7 +959,7 @@ xfs_vm_writepage(
offset = page_offset(page);
type = IO_OVERWRITE;
if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking)
if (wbc->sync_mode == WB_SYNC_NONE)
nonblocking = 1;
do {