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authorJeff Moyer <jmoyer@redhat.com>2015-10-20 18:13:51 +0300
committerJens Axboe <axboe@fb.com>2015-10-22 00:00:48 +0300
commit0809e3ac62319dc7534b64f95ac37e230d740e8a (patch)
tree70814dd32f930745834e4186445acf8dcbd1e3c1 /block/blk.h
parent3380f4589f6d9725e275525fd0580c8ee2b5cbbc (diff)
downloadlinux-0809e3ac62319dc7534b64f95ac37e230d740e8a.tar.xz
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.h1
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);