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| 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/kyber-iosched.c | |
| parent | bdev: Improve lookup_bdev documentation (diff) | |
| download | linux-dev-68497092bde9f53e35cafeb52fa9a267ebe0d9b1.tar.xz linux-dev-68497092bde9f53e35cafeb52fa9a267ebe0d9b1.zip | |
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/kyber-iosched.c')
| -rw-r--r-- | block/kyber-iosched.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c index fdd74a4df56f..70ff2a599ef6 100644 --- a/block/kyber-iosched.c +++ b/block/kyber-iosched.c @@ -433,6 +433,7 @@ static void kyber_exit_sched(struct elevator_queue *e) int i; del_timer_sync(&kqd->timer); + blk_stat_disable_accounting(kqd->q); for (i = 0; i < KYBER_NUM_DOMAINS; i++) sbitmap_queue_free(&kqd->domain_tokens[i]); |