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From: Shakeel Butt <shakeel.butt@linux.dev>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-mm@kvack.org
Subject: question on memcg_stats_[un]lock in memcg code
Date: Thu, 13 Mar 2025 18:11:30 -0700	[thread overview]
Message-ID: <5eqyqywhpgtpulqgnqyvpjivwfasbytgfrmum75ikvmsyhsjzu@xudzfvenzhzl> (raw)

Hi Sebastian,

The commit be3e67b54b43 ("mm/memcg: protect per-CPU counter by disabling
preemption on PREEMPT_RT where needed.") added memcg_stats_lock() and
other variants in memcontrol.c. There usage were added in
__mod_memcg_lruvec_state, __count_memcg_events and mem_cgroup_swapout. I
am wondering why __mod_memcg_state was excluded?

thanks,
Shakeel


             reply	other threads:[~2025-03-14  1:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-14  1:11 Shakeel Butt [this message]
2025-03-14  1:46 ` Shakeel Butt
2025-03-14 10:12   ` Sebastian Andrzej Siewior

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