diff options
| -rw-r--r-- | fs/pipe.c | 3 | ||||
| -rw-r--r-- | include/linux/memcontrol.h | 37 | ||||
| -rw-r--r-- | mm/memcontrol.c | 16 | ||||
| -rw-r--r-- | mm/page_alloc.c | 4 | ||||
| -rw-r--r-- | mm/slab.h | 4 |
5 files changed, 44 insertions, 20 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index bdc5d3c0977d..51d5fd8840ab 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -140,8 +140,7 @@ static int anon_pipe_buf_steal(struct pipe_inode_info *pipe, struct page *page = buf->page; if (page_count(page) == 1) { - if (memcg_kmem_enabled()) - memcg_kmem_uncharge(page, 0); + memcg_kmem_uncharge(page, 0); __SetPageLocked(page); return 0; } diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 83ae11cbd12c..b0eb29ea0d9c 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1273,12 +1273,12 @@ static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg) struct kmem_cache *memcg_kmem_get_cache(struct kmem_cache *cachep); void memcg_kmem_put_cache(struct kmem_cache *cachep); -int memcg_kmem_charge_memcg(struct page *page, gfp_t gfp, int order, - struct mem_cgroup *memcg); #ifdef CONFIG_MEMCG_KMEM -int memcg_kmem_charge(struct page *page, gfp_t gfp, int order); -void memcg_kmem_uncharge(struct page *page, int order); +int __memcg_kmem_charge(struct page *page, gfp_t gfp, int order); +void __memcg_kmem_uncharge(struct page *page, int order); +int __memcg_kmem_charge_memcg(struct page *page, gfp_t gfp, int order, + struct mem_cgroup *memcg); extern struct static_key_false memcg_kmem_enabled_key; extern struct workqueue_struct *memcg_kmem_cache_wq; @@ -1300,6 +1300,26 @@ static inline bool memcg_kmem_enabled(void) return static_branch_unlikely(&memcg_kmem_enabled_key); } +static inline int memcg_kmem_charge(struct page *page, gfp_t gfp, int order) +{ + if (memcg_kmem_enabled()) + return __memcg_kmem_charge(page, gfp, order); + return 0; +} + +static inline void memcg_kmem_uncharge(struct page *page, int order) +{ + if (memcg_kmem_enabled()) + __memcg_kmem_uncharge(page, order); +} + +static inline int memcg_kmem_charge_memcg(struct page *page, gfp_t gfp, + int order, struct mem_cgroup *memcg) +{ + if (memcg_kmem_enabled()) + return __memcg_kmem_charge_memcg(page, gfp, order, memcg); + return 0; +} /* * helper for accessing a memcg's index. It will be used as an index in the * child cache array in kmem_cache, and also to derive its name. This function @@ -1325,6 +1345,15 @@ static inline void memcg_kmem_uncharge(struct page *page, int order) { } +static inline int __memcg_kmem_charge(struct page *page, gfp_t gfp, int order) +{ + return 0; +} + +static inline void __memcg_kmem_uncharge(struct page *page, int order) +{ +} + #define for_each_memcg_cache_index(_idx) \ for (; NULL; ) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index af7f18b32389..72414bb7e226 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2573,7 +2573,7 @@ void memcg_kmem_put_cache(struct kmem_cache *cachep) } /** - * memcg_kmem_charge_memcg: charge a kmem page + * __memcg_kmem_charge_memcg: charge a kmem page * @page: page to charge * @gfp: reclaim mode * @order: allocation order @@ -2581,7 +2581,7 @@ void memcg_kmem_put_cache(struct kmem_cache *cachep) * * Returns 0 on success, an error code on failure. */ -int memcg_kmem_charge_memcg(struct page *page, gfp_t gfp, int order, +int __memcg_kmem_charge_memcg(struct page *page, gfp_t gfp, int order, struct mem_cgroup *memcg) { unsigned int nr_pages = 1 << order; @@ -2604,24 +2604,24 @@ int memcg_kmem_charge_memcg(struct page *page, gfp_t gfp, int order, } /** - * memcg_kmem_charge: charge a kmem page to the current memory cgroup + * __memcg_kmem_charge: charge a kmem page to the current memory cgroup * @page: page to charge * @gfp: reclaim mode * @order: allocation order * * Returns 0 on success, an error code on failure. */ -int memcg_kmem_charge(struct page *page, gfp_t gfp, int order) +int __memcg_kmem_charge(struct page *page, gfp_t gfp, int order) { struct mem_cgroup *memcg; int ret = 0; - if (mem_cgroup_disabled() || memcg_kmem_bypass()) + if (memcg_kmem_bypass()) return 0; memcg = get_mem_cgroup_from_current(); if (!mem_cgroup_is_root(memcg)) { - ret = memcg_kmem_charge_memcg(page, gfp, order, memcg); + ret = __memcg_kmem_charge_memcg(page, gfp, order, memcg); if (!ret) __SetPageKmemcg(page); } @@ -2629,11 +2629,11 @@ int memcg_kmem_charge(struct page *page, gfp_t gfp, int order) return ret; } /** - * memcg_kmem_uncharge: uncharge a kmem page + * __memcg_kmem_uncharge: uncharge a kmem page * @page: page to uncharge * @order: allocation order */ -void memcg_kmem_uncharge(struct page *page, int order) +void __memcg_kmem_uncharge(struct page *page, int order) { struct mem_cgroup *memcg = page->mem_cgroup; unsigned int nr_pages = 1 << order; diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 1f9f1409df9b..034b8b6043a3 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1056,7 +1056,7 @@ static __always_inline bool free_pages_prepare(struct page *page, if (PageMappingFlags(page)) page->mapping = NULL; if (memcg_kmem_enabled() && PageKmemcg(page)) - memcg_kmem_uncharge(page, order); + __memcg_kmem_uncharge(page, order); if (check_free) bad += free_pages_check(page); if (bad) @@ -4568,7 +4568,7 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, int preferred_nid, out: if (memcg_kmem_enabled() && (gfp_mask & __GFP_ACCOUNT) && page && - unlikely(memcg_kmem_charge(page, gfp_mask, order) != 0)) { + unlikely(__memcg_kmem_charge(page, gfp_mask, order) != 0)) { __free_pages(page, order); page = NULL; } diff --git a/mm/slab.h b/mm/slab.h index 384105318779..e5e6658eeacc 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -276,8 +276,6 @@ static __always_inline int memcg_charge_slab(struct page *page, gfp_t gfp, int order, struct kmem_cache *s) { - if (!memcg_kmem_enabled()) - return 0; if (is_root_cache(s)) return 0; return memcg_kmem_charge_memcg(page, gfp, order, s->memcg_params.memcg); @@ -286,8 +284,6 @@ static __always_inline int memcg_charge_slab(struct page *page, static __always_inline void memcg_uncharge_slab(struct page *page, int order, struct kmem_cache *s) { - if (!memcg_kmem_enabled()) - return; memcg_kmem_uncharge(page, order); } |