diff options
| author | Vladimir Davydov <vdavydov@virtuozzo.com> | 2016-03-17 14:17:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 15:09:34 -0700 |
| commit | 27ee57c93ff00b8a2d6c6dd6b0b3dddda7b43b77 (patch) | |
| tree | a848f3e480c7b486a825c01b2cb6dd09ad79459e /include | |
| parent | 72b54e7314a2e7a68567c92bbb32fe2598a3c783 (diff) | |
mm: memcontrol: report slab usage in cgroup2 memory.stat
Show how much memory is used for storing reclaimable and unreclaimable
in-kernel data structures allocated from slab caches.
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/memcontrol.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index f0c4bec6565b..e7af4834ffea 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -53,6 +53,8 @@ enum mem_cgroup_stat_index { MEM_CGROUP_STAT_NSTATS, /* default hierarchy stats */ MEMCG_SOCK = MEM_CGROUP_STAT_NSTATS, + MEMCG_SLAB_RECLAIMABLE, + MEMCG_SLAB_UNRECLAIMABLE, MEMCG_NR_STAT, }; @@ -883,6 +885,20 @@ static __always_inline void memcg_kmem_put_cache(struct kmem_cache *cachep) if (memcg_kmem_enabled()) __memcg_kmem_put_cache(cachep); } + +/** + * 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 mem_cgroup_stat_index 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; ) @@ -928,6 +944,11 @@ memcg_kmem_get_cache(struct kmem_cache *cachep, gfp_t gfp) static inline void memcg_kmem_put_cache(struct kmem_cache *cachep) { } + +static inline void memcg_kmem_update_page_stat(struct page *page, + enum mem_cgroup_stat_index idx, int val) +{ +} #endif /* CONFIG_MEMCG && !CONFIG_SLOB */ #endif /* _LINUX_MEMCONTROL_H */ |