summaryrefslogtreecommitdiffstats
path: root/block/blk-mq.c
diff options
context:
space:
mode:
authorMing Lei <ming.lei@canonical.com>2015-10-20 23:13:56 +0800
committerJens Axboe <axboe@fb.com>2015-10-21 15:00:56 -0600
commit676d06077f964f06af52c19e59f0409a8880612f (patch)
tree3f7e5c796a014c2384434e92051e85b025de061b /block/blk-mq.c
parent7460d389c01741f0dfff733af93d3b3abd9b974e (diff)
downloadop-kernel-dev-676d06077f964f06af52c19e59f0409a8880612f.zip
op-kernel-dev-676d06077f964f06af52c19e59f0409a8880612f.tar.gz
blk-mq: fix for trace_block_plug()
The trace point is for tracing plug event of each request queue instead of each task, so we should check the request count in the plug list from current queue instead of current task. Signed-off-by: Ming Lei <ming.lei@canonical.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq.c')
-rw-r--r--block/blk-mq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index d383711..24c528f 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1380,7 +1380,7 @@ static void blk_sq_make_request(struct request_queue *q, struct bio *bio)
plug = current->plug;
if (plug) {
blk_mq_bio_to_request(rq, bio);
- if (list_empty(&plug->mq_list))
+ if (!request_count)
trace_block_plug(q);
else if (request_count >= BLK_MAX_REQUEST_COUNT) {
blk_flush_plug_list(plug, false);
OpenPOWER on IntegriCloud