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>

1 files changed, 6 insertions, 6 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index df7f144a5a4b..54eae4f19d80 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -346,7 +346,7 @@ void memcg_put_cache_ids(void)
  * conditional to this static branch, we'll have to allow modules that does
  * kmem_cache_alloc and the such to see this symbol as well
  */
-struct static_key memcg_kmem_enabled_key;
+DEFINE_STATIC_KEY_FALSE(memcg_kmem_enabled_key);
 EXPORT_SYMBOL(memcg_kmem_enabled_key);
 
 #endif /* CONFIG_MEMCG_KMEM */
@@ -2907,7 +2907,7 @@ static int memcg_activate_kmem(struct mem_cgroup *memcg,
         err = page_counter_limit(&memcg->kmem, nr_pages);
         VM_BUG_ON(err);
 
-        static_key_slow_inc(&memcg_kmem_enabled_key);
+        static_branch_inc(&memcg_kmem_enabled_key);
         /*
          * A memory cgroup is considered kmem-active as soon as it gets
          * kmemcg_id. Setting the id after enabling static branching will
@@ -3646,7 +3646,7 @@ static void memcg_destroy_kmem(struct mem_cgroup *memcg)
 {
         if (memcg->kmem_acct_activated) {
                 memcg_destroy_kmem_caches(memcg);
-                static_key_slow_dec(&memcg_kmem_enabled_key);
+                static_branch_dec(&memcg_kmem_enabled_key);
                 WARN_ON(page_counter_read(&memcg->kmem));
         }
         tcp_destroy_cgroup(memcg);
@@ -4282,7 +4282,7 @@ mem_cgroup_css_online(struct cgroup_subsys_state *css)
 
 #ifdef CONFIG_INET
         if (cgroup_subsys_on_dfl(memory_cgrp_subsys) && !cgroup_memory_nosocket)
-                static_key_slow_inc(&memcg_sockets_enabled_key);
+                static_branch_inc(&memcg_sockets_enabled_key);
 #endif
 
         /*
@@ -4333,7 +4333,7 @@ static void mem_cgroup_css_free(struct cgroup_subsys_state *css)
         memcg_destroy_kmem(memcg);
 #ifdef CONFIG_INET
         if (cgroup_subsys_on_dfl(memory_cgrp_subsys) && !cgroup_memory_nosocket)
-                static_key_slow_dec(&memcg_sockets_enabled_key);
+                static_branch_dec(&memcg_sockets_enabled_key);
 #endif
         __mem_cgroup_free(memcg);
 }
@@ -5557,7 +5557,7 @@ void mem_cgroup_replace_page(struct page *oldpage, struct page *newpage)
 
 #ifdef CONFIG_INET
 
-struct static_key memcg_sockets_enabled_key;
+DEFINE_STATIC_KEY_FALSE(memcg_sockets_enabled_key);
 EXPORT_SYMBOL(memcg_sockets_enabled_key);
 
 void sock_update_memcg(struct sock *sk)