mirror of https://gitee.com/openkylin/linux.git
mm: kmem: make __memcg_kmem_(un)charge static
I've noticed that __memcg_kmem_charge() and __memcg_kmem_uncharge() are not used anywhere except memcontrol.c. Yet they are not declared as non-static and are declared in memcontrol.h. This patch makes them static. Link: https://lkml.kernel.org/r/20210108020332.4096911-1-guro@fb.com Signed-off-by: Roman Gushchin <guro@fb.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1592,9 +1592,6 @@ static inline void memcg_set_shrinker_bit(struct mem_cgroup *memcg,
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#endif
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#endif
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#ifdef CONFIG_MEMCG_KMEM
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#ifdef CONFIG_MEMCG_KMEM
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int __memcg_kmem_charge(struct mem_cgroup *memcg, gfp_t gfp,
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unsigned int nr_pages);
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void __memcg_kmem_uncharge(struct mem_cgroup *memcg, unsigned int nr_pages);
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int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order);
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int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order);
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void __memcg_kmem_uncharge_page(struct page *page, int order);
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void __memcg_kmem_uncharge_page(struct page *page, int order);
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@ -255,6 +255,11 @@ struct cgroup_subsys_state *vmpressure_to_css(struct vmpressure *vmpr)
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#ifdef CONFIG_MEMCG_KMEM
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#ifdef CONFIG_MEMCG_KMEM
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extern spinlock_t css_set_lock;
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extern spinlock_t css_set_lock;
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static int __memcg_kmem_charge(struct mem_cgroup *memcg, gfp_t gfp,
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unsigned int nr_pages);
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static void __memcg_kmem_uncharge(struct mem_cgroup *memcg,
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unsigned int nr_pages);
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static void obj_cgroup_release(struct percpu_ref *ref)
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static void obj_cgroup_release(struct percpu_ref *ref)
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{
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{
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struct obj_cgroup *objcg = container_of(ref, struct obj_cgroup, refcnt);
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struct obj_cgroup *objcg = container_of(ref, struct obj_cgroup, refcnt);
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@ -3087,8 +3092,8 @@ static void memcg_free_cache_id(int id)
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*
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*
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* Returns 0 on success, an error code on failure.
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* Returns 0 on success, an error code on failure.
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*/
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*/
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int __memcg_kmem_charge(struct mem_cgroup *memcg, gfp_t gfp,
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static int __memcg_kmem_charge(struct mem_cgroup *memcg, gfp_t gfp,
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unsigned int nr_pages)
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unsigned int nr_pages)
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{
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{
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struct page_counter *counter;
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struct page_counter *counter;
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int ret;
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int ret;
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@ -3120,7 +3125,7 @@ int __memcg_kmem_charge(struct mem_cgroup *memcg, gfp_t gfp,
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* @memcg: memcg to uncharge
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* @memcg: memcg to uncharge
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* @nr_pages: number of pages to uncharge
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* @nr_pages: number of pages to uncharge
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*/
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*/
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void __memcg_kmem_uncharge(struct mem_cgroup *memcg, unsigned int nr_pages)
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static void __memcg_kmem_uncharge(struct mem_cgroup *memcg, unsigned int nr_pages)
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{
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{
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if (!cgroup_subsys_on_dfl(memory_cgrp_subsys))
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if (!cgroup_subsys_on_dfl(memory_cgrp_subsys))
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page_counter_uncharge(&memcg->kmem, nr_pages);
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page_counter_uncharge(&memcg->kmem, nr_pages);
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