diff options
| author | Tejun Heo <htejun@gmail.com> | 2006-02-08 01:01:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-08 07:52:58 -0800 |
| commit | 30e9656cc340035e102fea46e1908689494b042d (patch) | |
| tree | 5fc623ccad5a1f5b09ebc4b7e8d7c6bec8e485ac /block/ll_rw_blk.c | |
| parent | e5ea0a9fca5612808839dd4bcc41c46fc02451f9 (diff) | |
| download | lwn-30e9656cc340035e102fea46e1908689494b042d.tar.gz lwn-30e9656cc340035e102fea46e1908689494b042d.zip | |
[PATCH] block: implement elv_insert and use it (fix ordcolor flipping bug)
q->ordcolor must only be flipped on initial queueing of a hardbarrier
request.
Constructing ordered sequence and requeueing used to pass through
__elv_add_request() which flips q->ordcolor when it sees a barrier
request.
This patch separates out elv_insert() from __elv_add_request() and uses
elv_insert() when constructing ordered sequence and requeueing.
elv_insert() inserts the given request at the specified position and
does nothing else.
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/ll_rw_blk.c')
| -rw-r--r-- | block/ll_rw_blk.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index ee5ed98db4cd..03d9c82b0fe7 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -454,7 +454,7 @@ static void queue_flush(request_queue_t *q, unsigned which) rq->end_io = end_io; q->prepare_flush_fn(q, rq); - __elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 0); + elv_insert(q, rq, ELEVATOR_INSERT_FRONT); } static inline struct request *start_ordered(request_queue_t *q, @@ -490,7 +490,7 @@ static inline struct request *start_ordered(request_queue_t *q, else q->ordseq |= QUEUE_ORDSEQ_POSTFLUSH; - __elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 0); + elv_insert(q, rq, ELEVATOR_INSERT_FRONT); if (q->ordered & QUEUE_ORDERED_PREFLUSH) { queue_flush(q, QUEUE_ORDERED_PREFLUSH); |