mm: memcontrol: switch to the updated jump-label API
According to <linux/jump_label.h> the direct use of struct static_key is deprecated. Update the socket and slab accounting code accordingly. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: David S. Miller <davem@davemloft.net> Reported-by: Jason Baron <jbaron@akamai.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -704,8 +704,8 @@ void sock_release_memcg(struct sock *sk);
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bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages);
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void mem_cgroup_uncharge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages);
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#if defined(CONFIG_MEMCG) && defined(CONFIG_INET)
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extern struct static_key memcg_sockets_enabled_key;
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#define mem_cgroup_sockets_enabled static_key_false(&memcg_sockets_enabled_key)
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extern struct static_key_false memcg_sockets_enabled_key;
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#define mem_cgroup_sockets_enabled static_branch_unlikely(&memcg_sockets_enabled_key)
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static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
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{
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#ifdef CONFIG_MEMCG_KMEM
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@ -727,7 +727,7 @@ static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
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#endif
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#ifdef CONFIG_MEMCG_KMEM
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extern struct static_key memcg_kmem_enabled_key;
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extern struct static_key_false memcg_kmem_enabled_key;
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extern int memcg_nr_cache_ids;
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void memcg_get_cache_ids(void);
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@ -743,7 +743,7 @@ void memcg_put_cache_ids(void);
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static inline bool memcg_kmem_enabled(void)
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{
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return static_key_false(&memcg_kmem_enabled_key);
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return static_branch_unlikely(&memcg_kmem_enabled_key);
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}
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static inline bool memcg_kmem_is_active(struct mem_cgroup *memcg)
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@ -346,7 +346,7 @@ void memcg_put_cache_ids(void)
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* conditional to this static branch, we'll have to allow modules that does
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* kmem_cache_alloc and the such to see this symbol as well
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*/
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struct static_key memcg_kmem_enabled_key;
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DEFINE_STATIC_KEY_FALSE(memcg_kmem_enabled_key);
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EXPORT_SYMBOL(memcg_kmem_enabled_key);
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#endif /* CONFIG_MEMCG_KMEM */
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@ -2907,7 +2907,7 @@ static int memcg_activate_kmem(struct mem_cgroup *memcg,
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err = page_counter_limit(&memcg->kmem, nr_pages);
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VM_BUG_ON(err);
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static_key_slow_inc(&memcg_kmem_enabled_key);
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static_branch_inc(&memcg_kmem_enabled_key);
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/*
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* A memory cgroup is considered kmem-active as soon as it gets
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* kmemcg_id. Setting the id after enabling static branching will
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@ -3646,7 +3646,7 @@ static void memcg_destroy_kmem(struct mem_cgroup *memcg)
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{
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if (memcg->kmem_acct_activated) {
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memcg_destroy_kmem_caches(memcg);
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static_key_slow_dec(&memcg_kmem_enabled_key);
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static_branch_dec(&memcg_kmem_enabled_key);
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WARN_ON(page_counter_read(&memcg->kmem));
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}
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tcp_destroy_cgroup(memcg);
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@ -4282,7 +4282,7 @@ mem_cgroup_css_online(struct cgroup_subsys_state *css)
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#ifdef CONFIG_INET
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if (cgroup_subsys_on_dfl(memory_cgrp_subsys) && !cgroup_memory_nosocket)
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static_key_slow_inc(&memcg_sockets_enabled_key);
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static_branch_inc(&memcg_sockets_enabled_key);
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#endif
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/*
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@ -4333,7 +4333,7 @@ static void mem_cgroup_css_free(struct cgroup_subsys_state *css)
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memcg_destroy_kmem(memcg);
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#ifdef CONFIG_INET
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if (cgroup_subsys_on_dfl(memory_cgrp_subsys) && !cgroup_memory_nosocket)
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static_key_slow_dec(&memcg_sockets_enabled_key);
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static_branch_dec(&memcg_sockets_enabled_key);
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#endif
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__mem_cgroup_free(memcg);
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}
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@ -5557,7 +5557,7 @@ void mem_cgroup_replace_page(struct page *oldpage, struct page *newpage)
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#ifdef CONFIG_INET
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struct static_key memcg_sockets_enabled_key;
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DEFINE_STATIC_KEY_FALSE(memcg_sockets_enabled_key);
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EXPORT_SYMBOL(memcg_sockets_enabled_key);
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void sock_update_memcg(struct sock *sk)
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@ -34,7 +34,7 @@ void tcp_destroy_cgroup(struct mem_cgroup *memcg)
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return;
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if (memcg->tcp_mem.active)
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static_key_slow_dec(&memcg_sockets_enabled_key);
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static_branch_dec(&memcg_sockets_enabled_key);
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}
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static int tcp_update_limit(struct mem_cgroup *memcg, unsigned long nr_pages)
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@ -65,7 +65,7 @@ static int tcp_update_limit(struct mem_cgroup *memcg, unsigned long nr_pages)
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* because when this value change, the code to process it is not
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* patched in yet.
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*/
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static_key_slow_inc(&memcg_sockets_enabled_key);
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static_branch_inc(&memcg_sockets_enabled_key);
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memcg->tcp_mem.active = true;
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}
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