Commit 99771d73 authored by Khazhismel Kumykov's avatar Khazhismel Kumykov Committed by Jens Axboe
Browse files

bfq: ignore oom_bfqq in bfq_check_waker 



oom_bfqq is just a fallback bfqq, so shouldn't be used with waker
detection.

Suggested-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarKhazhismel Kumykov <khazhy@google.com>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20221108181030.1611703-2-khazhy@google.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent a1795c2c

block/bfq-iosched.c

+3 −1
Original line number Diff line number Diff line
@@ -2083,7 +2083,9 @@ static void bfq_check_waker(struct bfq_data *bfqd, struct bfq_queue *bfqq, 
	if (!bfqd->last_completed_rq_bfqq ||

	    bfqd->last_completed_rq_bfqq == bfqq ||

	    bfq_bfqq_has_short_ttime(bfqq) ||

	    now_ns - bfqd->last_completion >= 4 * NSEC_PER_MSEC)

	    now_ns - bfqd->last_completion >= 4 * NSEC_PER_MSEC ||

	    bfqd->last_completed_rq_bfqq == &bfqd->oom_bfqq ||

	    bfqq == &bfqd->oom_bfqq)

		return;



	/*