mm, memcg: avoid unnecessary function call when memcg is disabled

[can-eth-gw-linux.git] / include / linux / memcontrol.h

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index fd0e6d53836ee5f0064cdce06ed06959b0ba1f8e..e98a74c0c9c0e872eb20fd29e5a24b3c3cd3d5ed 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -181,7 +181,14 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
                                                gfp_t gfp_mask,
                                                unsigned long *total_scanned);
 
-void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx);
+void __mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx);
+static inline void mem_cgroup_count_vm_event(struct mm_struct *mm,
+                                            enum vm_event_item idx)
+{
+       if (mem_cgroup_disabled())
+               return;
+       __mem_cgroup_count_vm_event(mm, idx);
+}
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 void mem_cgroup_split_huge_fixup(struct page *head);
 #endif
@@ -396,7 +403,7 @@ enum {
 };
 
 struct sock;
-#ifdef CONFIG_MEMCG_KMEM
+#if defined(CONFIG_INET) && defined(CONFIG_MEMCG_KMEM)
 void sock_update_memcg(struct sock *sk);
 void sock_release_memcg(struct sock *sk);
 #else
@@ -406,6 +413,6 @@ static inline void sock_update_memcg(struct sock *sk)
 static inline void sock_release_memcg(struct sock *sk)
 {
 }
-#endif /* CONFIG_MEMCG_KMEM */
+#endif /* CONFIG_INET && CONFIG_MEMCG_KMEM */
 #endif /* _LINUX_MEMCONTROL_H */