Commit 82778259 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

blk-cgroup: cleanup blkcg_maybe_throttle_current 



Use blkcg_css instead of opencoding it.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarTejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20220420042723.1010598-15-hch@lst.de


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent d200ca14

block/blk-cgroup.c

+1 −7
Original line number Diff line number Diff line
@@ -1808,7 +1808,6 @@ static void blkcg_maybe_throttle_blkg(struct blkcg_gq *blkg, bool use_memdelay) 
void blkcg_maybe_throttle_current(void)

{

	struct request_queue *q = current->throttle_queue;

	struct cgroup_subsys_state *css;

	struct blkcg *blkcg;

	struct blkcg_gq *blkg;

	bool use_memdelay = current->use_memdelay;
@@ -1820,12 +1819,7 @@ void blkcg_maybe_throttle_current(void) 
	current->use_memdelay = false;



	rcu_read_lock();

	css = kthread_blkcg();

	if (css)

		blkcg = css_to_blkcg(css);

	else

		blkcg = css_to_blkcg(task_css(current, io_cgrp_id));



	blkcg = css_to_blkcg(blkcg_css());

	if (!blkcg)

		goto out;

	blkg = blkg_lookup(blkcg, q);