mm: memcontrol: give the kmem states more descriptive names

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On any given memcg, the kmem accounting feature has three separate
states: not initialized, structures allocated, and actively accounting
slab memory.  These are represented through a combination of the
kmem_acct_activated and kmem_acct_active flags, which is confusing.

Convert to a kmem_state enum with the states NONE, ALLOCATED, and
ONLINE.  Then rename the functions to modify the state accordingly.
This follows the nomenclature of css object states more closely.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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This commit is contained in:

Johannes Weiner 2016-01-20 15:02:24 -08:00 • committed by Linus Torvalds

parent b15aac110a

commit 567e9ab2e6

4 changed files with 38 additions and 35 deletions

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15

include/linux/memcontrol.h

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52

mm/memcontrol.c

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4

mm/slab_common.c

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2

mm/vmscan.c

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