commit 8aa7e847d834ed937a9ad37a0f2ad5b8584c1ab0
author Jens Axboe <jens.axboe@oracle.com> Thu Jul 09 14:52:32 2009 +0200
committer Jens Axboe <axboe@carl.(none)> Fri Jul 10 20:31:53 2009 +0200
tree 76c8b4f1362a928d426f2201790ab5d128f57724
parent c2cc49a2f8a479dde96a599646d30b6cc9dbed78

Fix congestion_wait() sync/async vs read/write confusion

Commit 1faa16d22877f4839bd433547d770c676d1d964c accidentally broke
the bdi congestion wait queue logic, causing us to wait on congestion
for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

fs/xfs/linux-2.6/xfs_buf.c

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 1418b91..0c93c7e 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -412,7 +412,7 @@
 
 			XFS_STATS_INC(xb_page_retries);
 			xfsbufd_wakeup(0, gfp_mask);
-			congestion_wait(WRITE, HZ/50);
+			congestion_wait(BLK_RW_ASYNC, HZ/50);
 			goto retry;
 		}