diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-12-14 17:23:05 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-12-14 17:23:05 -0700 |
| commit | 68497092bde9f53e35cafeb52fa9a267ebe0d9b1 (patch) | |
| tree | 085ae66e07a24ccf023c3fdd0e784708f9341fdc /block/blk-stat.h | |
| parent | 0ba4566cd8a4e645b542e6ddbe3dd26c85ad2408 (diff) | |
block: make queue stat accounting a reference
kyber turns on IO statistics when it is loaded on a queue, which means
that even if kyber is then later unloaded, we're still stuck with stats
enabled on the queue.
Change the account enabled from a bool to an int, and pair the enable call
with the equivalent disable call. This ensures that stats gets turned off
again appropriately.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-stat.h')
| -rw-r--r-- | block/blk-stat.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-stat.h b/block/blk-stat.h index 58f029af49e5..17e1eb4ec7e2 100644 --- a/block/blk-stat.h +++ b/block/blk-stat.h @@ -70,6 +70,7 @@ void blk_stat_add(struct request *rq, u64 now); /* record time/size info in request but not add a callback */ void blk_stat_enable_accounting(struct request_queue *q); +void blk_stat_disable_accounting(struct request_queue *q); /** * blk_stat_alloc_callback() - Allocate a block statistics callback. |