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Chris Down authored
This one is a bit more nuanced because we have memcg_max_mutex, which is mostly just used for enforcing invariants, but we still need to READ_ONCE since (despite its name) it doesn't really protect memory.max access. On write (page_counter_set_max() and memory_max_write()) we use xchg(), which uses smp_mb(), so that's already fine. Signed-off-by:
Chris Down <chris@chrisdown.name> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Acked-by:
Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Roman Gushchin <guro@fb.com> Cc: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/50a31e5f39f8ae6c8fb73966ba1455f0924e8f44.1584034301.git.chris@chrisdown.nameSigned-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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