Memory controller: accounting setup

[deliverable/linux.git] / include / linux / memcontrol.h

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 3f121b27677a870eebdbb85e9f886b1dee786447..7d1f119c796efb42e470572d2e05dd607d267408 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -3,6 +3,9 @@
  * Copyright IBM Corporation, 2007
  * Author Balbir Singh <balbir@linux.vnet.ibm.com>
  *
+ * Copyright 2007 OpenVZ SWsoft Inc
+ * Author: Pavel Emelianov <xemul@openvz.org>
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
@@ -17,5 +20,38 @@
 #ifndef _LINUX_MEMCONTROL_H
 #define _LINUX_MEMCONTROL_H
 
+struct mem_cgroup;
+struct page_cgroup;
+
+#ifdef CONFIG_CGROUP_MEM_CONT
+
+extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p);
+extern void mm_free_cgroup(struct mm_struct *mm);
+extern void page_assign_page_cgroup(struct page *page,
+                                       struct page_cgroup *pc);
+extern struct page_cgroup *page_get_page_cgroup(struct page *page);
+
+#else /* CONFIG_CGROUP_MEM_CONT */
+static inline void mm_init_cgroup(struct mm_struct *mm,
+                                       struct task_struct *p)
+{
+}
+
+static inline void mm_free_cgroup(struct mm_struct *mm)
+{
+}
+
+static inline void page_assign_page_cgroup(struct page *page,
+                                               struct page_cgroup *pc)
+{
+}
+
+static inline struct page_cgroup *page_get_page_cgroup(struct page *page)
+{
+       return NULL;
+}
+
+#endif /* CONFIG_CGROUP_MEM_CONT */
+
 #endif /* _LINUX_MEMCONTROL_H */