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| author | Johannes Weiner <hannes@cmpxchg.org> | 2017-07-06 15:40:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-06 16:24:35 -0700 |
| commit | ed52be7bfd45533b194b429f43361493d24599a7 (patch) | |
| tree | 2b1ab7d515cfa34eafe21851251ccf20268c60fd | |
| parent | 320492961c1cf21da5547b00c23e525851c1d16f (diff) | |
| download | op-kernel-dev-ed52be7bfd45533b194b429f43361493d24599a7.zip op-kernel-dev-ed52be7bfd45533b194b429f43361493d24599a7.tar.gz | |
mm: memcontrol: use generic mod_memcg_page_state for kmem pages
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>
| -rw-r--r-- | include/linux/memcontrol.h | 17 | ||||
| -rw-r--r-- | kernel/fork.c | 8 | ||||
| -rw-r--r-- | mm/slab.h | 16 |
3 files changed, 12 insertions, 29 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index fa506ae..5a72d83 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -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 */ diff --git a/kernel/fork.c b/kernel/fork.c index e53770d..aa01b81 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -326,8 +326,8 @@ static void account_kernel_stack(struct task_struct *tsk, int account) } /* All stack pages belong to the same memcg. */ - memcg_kmem_update_page_stat(vm->pages[0], MEMCG_KERNEL_STACK_KB, - account * (THREAD_SIZE / 1024)); + mod_memcg_page_state(vm->pages[0], MEMCG_KERNEL_STACK_KB, + account * (THREAD_SIZE / 1024)); } else { /* * All stack pages are in the same zone and belong to the @@ -338,8 +338,8 @@ static void account_kernel_stack(struct task_struct *tsk, int account) mod_zone_page_state(page_zone(first_page), NR_KERNEL_STACK_KB, THREAD_SIZE / 1024 * account); - memcg_kmem_update_page_stat(first_page, MEMCG_KERNEL_STACK_KB, - account * (THREAD_SIZE / 1024)); + mod_memcg_page_state(first_page, MEMCG_KERNEL_STACK_KB, + account * (THREAD_SIZE / 1024)); } } @@ -285,10 +285,10 @@ static __always_inline int memcg_charge_slab(struct page *page, if (ret) return ret; - memcg_kmem_update_page_stat(page, - (s->flags & SLAB_RECLAIM_ACCOUNT) ? - NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE, - 1 << order); + mod_memcg_page_state(page, + (s->flags & SLAB_RECLAIM_ACCOUNT) ? + NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE, + 1 << order); return 0; } @@ -298,10 +298,10 @@ static __always_inline void memcg_uncharge_slab(struct page *page, int order, if (!memcg_kmem_enabled()) return; - memcg_kmem_update_page_stat(page, - (s->flags & SLAB_RECLAIM_ACCOUNT) ? - NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE, - -(1 << order)); + mod_memcg_page_state(page, + (s->flags & SLAB_RECLAIM_ACCOUNT) ? + NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE, + -(1 << order)); memcg_kmem_uncharge(page, order); } |
