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| author | Jeff Moyer <jmoyer@redhat.com> | 2015-10-20 23:13:51 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-10-21 15:00:48 -0600 |
| commit | 0809e3ac62319dc7534b64f95ac37e230d740e8a (patch) | |
| tree | 70814dd32f930745834e4186445acf8dcbd1e3c1 /block/blk.h | |
| parent | 3380f4589f6d9725e275525fd0580c8ee2b5cbbc (diff) | |
| download | linux-stable-0809e3ac62319dc7534b64f95ac37e230d740e8a.tar.gz linux-stable-0809e3ac62319dc7534b64f95ac37e230d740e8a.tar.bz2 linux-stable-0809e3ac62319dc7534b64f95ac37e230d740e8a.zip | |
block: fix plug list flushing for nomerge queues
Request queues with merging disabled will not flush the plug list after
BLK_MAX_REQUEST_COUNT requests have been queued, since the code relies
on blk_attempt_plug_merge to compute the request_count. Fix this by
computing the number of queued requests even for nomerge queues.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index 98614ad37c81..aa27d0292af1 100644 --- a/block/blk.h +++ b/block/blk.h @@ -86,6 +86,7 @@ bool bio_attempt_back_merge(struct request_queue *q, struct request *req, bool blk_attempt_plug_merge(struct request_queue *q, struct bio *bio, unsigned int *request_count, struct request **same_queue_rq); +unsigned int blk_plug_queued_count(struct request_queue *q); void blk_account_io_start(struct request *req, bool new_io); void blk_account_io_completion(struct request *req, unsigned int bytes); |