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bfq: Drop pointless unlock-lock pair

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commit fc84e1f941b91221092da5b3102ec82da24c5673 upstream.

In bfq_insert_request() we unlock bfqd->lock only to call
trace_block_rq_insert() and then lock bfqd->lock again. This is really
pointless since tracing is disabled if we really care about performance
and even if the tracepoint is enabled, it is a quick call.

CC: [email protected]
Tested-by: "yukuai (C)" <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Jan Kara 2022-06-07 11:15:10 +02:00 • committed by Greg Kroah-Hartman
commit f885f55033
1 changed files with 0 additions and 3 deletions
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3
block/bfq-iosched.c
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@ -5529,11 +5529,8 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
return;
}
spin_unlock_irq(&bfqd->lock);
blk_mq_sched_request_inserted(rq);
spin_lock_irq(&bfqd->lock);
bfqq = bfq_init_rq(rq);
if (!bfqq || at_head || blk_rq_is_passthrough(rq)) {
if (at_head)