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| author |   Shakeel Butt <shakeel.butt@linux.dev> | 2025-05-14 11:41:54 -0700 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2025-05-22 14:55:38 -0700 |
| commit | 8814e3b8692b31e0150a894dd70c14ca0b7b746a (patch) | |
| tree | 1b7710fca1cfb27da4a4455a600d4da0dd904343 /scripts/lib/kdoc/kdoc_files.py | |
| parent | memcg: move preempt disable to callers of memcg_rstat_updated (diff) | |
| download | linux-rng-8814e3b8692b31e0150a894dd70c14ca0b7b746a.tar.xz linux-rng-8814e3b8692b31e0150a894dd70c14ca0b7b746a.zip | |
memcg: make mod_memcg_state re-entrant safe against irqs
Let's make mod_memcg_state re-entrant safe against irqs. The only thing
needed is to convert the usage of __this_cpu_add() to this_cpu_add(). In
addition, with re-entrant safety, there is no need to disable irqs.
mod_memcg_state() is not safe against nmi, so let's add warning if someone
tries to call it in nmi context.
Link: https://lkml.kernel.org/r/20250514184158.3471331-4-shakeel.butt@linux.dev
Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_files.py')
0 files changed, 0 insertions, 0 deletions