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Commit 9d8f0bcc authored by Bart Van Assche's avatar Bart Van Assche Committed by Jens Axboe
Browse files

blk-mq: Make bt_clear_tag() easier to read 



Eliminate a backwards goto statement from bt_clear_tag().

Signed-off-by: default avatarBart Van Assche <bvanassche@acm.org>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent abab13b5

block/blk-mq-tag.c

+2 −5
Original line number Diff line number Diff line
@@ -351,15 +351,12 @@ static void bt_clear_tag(struct blk_mq_bitmap_tags *bt, unsigned int tag) 
		return;



	wait_cnt = atomic_dec_return(&bs->wait_cnt);

	if (unlikely(wait_cnt < 0))

		wait_cnt = atomic_inc_return(&bs->wait_cnt);

	if (wait_cnt == 0) {

wake:

		atomic_add(bt->wake_cnt, &bs->wait_cnt);

		bt_index_atomic_inc(&bt->wake_index);

		wake_up(&bs->wait);

	} else if (wait_cnt < 0) {

		wait_cnt = atomic_inc_return(&bs->wait_cnt);

		if (!wait_cnt)

			goto wake;

	}

}