From dbcdde3e76f45d56c4a30ca6c5d69b6d473d3fd1 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 8 Jul 2011 14:34:14 +0200
Subject: [PATCH] xfs: re-enable non-blocking behaviour in xfs_map_blocks
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>
---
fs/xfs/linux-2.6/xfs_aops.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 60e1364a191f..3447733fa897 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -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 {
--
2.20.1