memcg: flush stats non-atomically in mem_cgroup_wb_stats()

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The previous patch moved the wb_over_bg_thresh()->mem_cgroup_wb_stats()
code path in wb_writeback() outside the lock section.  We no longer need
to flush the stats atomically.  Flush the stats non-atomically.

Link: https://lkml.kernel.org/r/20230421174020.2994750-3-yosryahmed@google.com
Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

This commit is contained in:

Yosry Ahmed 2023-04-21 17:40:17 +00:00 • committed by Andrew Morton

parent 2816ea2abf

commit 190409caaf

1 changed files with 1 additions and 5 deletions

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mm/memcontrol.c

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