1 /* memcontrol.h - Memory Controller
3 * Copyright IBM Corporation, 2007
4 * Author Balbir Singh <balbir@linux.vnet.ibm.com>
6 * Copyright 2007 OpenVZ SWsoft Inc
7 * Author: Pavel Emelianov <xemul@openvz.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
20 #ifndef _LINUX_MEMCONTROL_H
21 #define _LINUX_MEMCONTROL_H
23 #include <linux/rcupdate.h>
31 #ifdef CONFIG_CGROUP_MEM_CONT
33 extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p);
34 extern void mm_free_cgroup(struct mm_struct *mm);
35 extern void page_assign_page_cgroup(struct page *page,
36 struct page_cgroup *pc);
37 extern struct page_cgroup *page_get_page_cgroup(struct page *page);
38 extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
40 extern void mem_cgroup_uncharge(struct page_cgroup *pc);
41 extern void mem_cgroup_uncharge_page(struct page *page);
42 extern void mem_cgroup_move_lists(struct page_cgroup *pc, bool active);
43 extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
44 struct list_head *dst,
45 unsigned long *scanned, int order,
46 int mode, struct zone *z,
47 struct mem_cgroup *mem_cont,
49 extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask);
50 extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
52 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem);
54 static inline struct mem_cgroup *mm_cgroup(const struct mm_struct *mm)
56 return rcu_dereference(mm->mem_cgroup);
59 extern int mem_cgroup_prepare_migration(struct page *page);
60 extern void mem_cgroup_end_migration(struct page *page);
61 extern void mem_cgroup_page_migration(struct page *page, struct page *newpage);
66 extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem);
67 extern long mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem);
69 extern int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem);
70 extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
72 extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
75 extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
76 struct zone *zone, int priority);
77 extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
78 struct zone *zone, int priority);
80 #else /* CONFIG_CGROUP_MEM_CONT */
81 static inline void mm_init_cgroup(struct mm_struct *mm,
82 struct task_struct *p)
86 static inline void mm_free_cgroup(struct mm_struct *mm)
90 static inline void page_assign_page_cgroup(struct page *page,
91 struct page_cgroup *pc)
95 static inline struct page_cgroup *page_get_page_cgroup(struct page *page)
100 static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
106 static inline void mem_cgroup_uncharge(struct page_cgroup *pc)
110 static inline void mem_cgroup_uncharge_page(struct page *page)
114 static inline void mem_cgroup_move_lists(struct page_cgroup *pc,
119 static inline int mem_cgroup_cache_charge(struct page *page,
120 struct mm_struct *mm,
126 static inline struct mem_cgroup *mm_cgroup(const struct mm_struct *mm)
131 static inline int task_in_mem_cgroup(struct task_struct *task,
132 const struct mem_cgroup *mem)
137 static inline int mem_cgroup_prepare_migration(struct page *page)
142 static inline void mem_cgroup_end_migration(struct page *page)
147 mem_cgroup_page_migration(struct page *page, struct page *newpage)
151 static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
156 static inline int mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem)
161 static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem)
166 static inline void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
171 static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
176 static inline long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
177 struct zone *zone, int priority)
182 static inline long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
183 struct zone *zone, int priority)
187 #endif /* CONFIG_CGROUP_MEM_CONT */
189 #endif /* _LINUX_MEMCONTROL_H */