mm: kmem: reimplement get_obj_cgroup_from_current()

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Reimplement get_obj_cgroup_from_current() using current_obj_cgroup(). 
get_obj_cgroup_from_current() and current_obj_cgroup() share 80% of the
code, so the new implementation is almost trivial.

get_obj_cgroup_from_current() is a convenient function used by the
bpf subsystem, so there is no reason to get rid of it completely.

Link: https://lkml.kernel.org/r/20231019225346.1822282-7-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin (Cruise) <roman.gushchin@linux.dev>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Shakeel Butt <shakeelb@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

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Roman Gushchin 2023-10-19 15:53:46 -07:00 • committed by Andrew Morton

parent c63b835d0e

commit e56808fef8

2 changed files with 10 additions and 33 deletions

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11

include/linux/memcontrol.h

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32

mm/memcontrol.c

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