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authorTejun Heo <htejun@gmail.com>2006-02-04 23:27:38 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-05 11:06:51 -0800
commit238e7db9357bfe1ce3d6f7ac1e60e595e9d46b7b (patch)
tree3688c8145e4bfa61a387137dafc966470569d2b8 /block
parent9a7a67af8bb02106f0fb01dd9d237332f874be9a (diff)
downloadlinux-2.6.34-ux500-238e7db9357bfe1ce3d6f7ac1e60e595e9d46b7b.tar.gz
[PATCH] block: request_queue->ordcolor must not be flipped on SOFTBARRIER
q->ordcolor must not be flipped on SOFTBARRIER. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'block')
-rw-r--r--block/elevator.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/elevator.c b/block/elevator.c
index 96a61e029ce..2fc269f6972 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -323,7 +323,8 @@ void __elv_add_request(request_queue_t *q, struct request *rq, int where,
/*
* toggle ordered color
*/
- q->ordcolor ^= 1;
+ if (blk_barrier_rq(rq))
+ q->ordcolor ^= 1;
/*
* barriers implicitly indicate back insertion