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authorChristoph Hellwig <hch@lst.de>2022-04-20 06:27:22 +0200
committerJens Axboe <axboe@kernel.dk>2022-05-02 14:06:20 -0600
commit82778259eb201870d6d4f95ca4162de60a682343 (patch)
treeaff35bbab7371d0154ba48791a6f02e321712c00 /block/blk-cgroup.c
parentd200ca143ac6d0b4391b4e811e67e1a36461d501 (diff)
blk-cgroup: cleanup blkcg_maybe_throttle_current
Use blkcg_css instead of opencoding it. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220420042723.1010598-15-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-cgroup.c')
-rw-r--r--block/blk-cgroup.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 5684a8ce1f75..a91f8ae18b49 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -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);