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mm: memcontrol: use generic mod_memcg_page_state for kmem pages

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The kmem-specific functions do the same thing.  Switch and drop.

Link: http://lkml.kernel.org/r/20170530181724.27197-5-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2017-07-06 15:40:49 -07:00 • committed by Linus Torvalds
parent 320492961c
commit ed52be7bfd
3 changed files with 12 additions and 29 deletions
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17
include/linux/memcontrol.h
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@ -929,19 +929,6 @@ static inline int memcg_cache_id(struct mem_cgroup *memcg)
return memcg ? memcg->kmemcg_id : -1;
}
/**
* memcg_kmem_update_page_stat - update kmem page state statistics
* @page: the page
* @idx: page state item to account
* @val: number of pages (positive or negative)
*/
static inline void memcg_kmem_update_page_stat(struct page *page,
enum memcg_stat_item idx, int val)
{
if (memcg_kmem_enabled() && page->mem_cgroup)
this_cpu_add(page->mem_cgroup->stat->count[idx], val);
}
#else
#define for_each_memcg_cache_index(_idx) \
for (; NULL; )
@ -964,10 +951,6 @@ static inline void memcg_put_cache_ids(void)
{
}
static inline void memcg_kmem_update_page_stat(struct page *page,
enum memcg_stat_item idx, int val)
{
}
#endif /* CONFIG_MEMCG && !CONFIG_SLOB */
#endif /* _LINUX_MEMCONTROL_H */