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
28 #ifdef CONFIG_CGROUP_MEM_RES_CTLR
30 extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p);
31 extern void mm_free_cgroup(struct mm_struct *mm);
33 #define page_reset_bad_cgroup(page) ((page)->page_cgroup = 0)
35 extern struct page_cgroup *page_get_page_cgroup(struct page *page);
36 extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
38 extern void mem_cgroup_uncharge(struct page_cgroup *pc);
39 extern void mem_cgroup_uncharge_page(struct page *page);
40 extern void mem_cgroup_move_lists(struct page *page, bool active);
41 extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
42 struct list_head *dst,
43 unsigned long *scanned, int order,
44 int mode, struct zone *z,
45 struct mem_cgroup *mem_cont,
47 extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask);
48 extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
50 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem);
52 #define mm_match_cgroup(mm, cgroup) \
53 ((cgroup) == rcu_dereference((mm)->mem_cgroup))
55 extern int mem_cgroup_prepare_migration(struct page *page);
56 extern void mem_cgroup_end_migration(struct page *page);
57 extern void mem_cgroup_page_migration(struct page *page, struct page *newpage);
62 extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem);
63 extern long mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem);
65 extern int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem);
66 extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
68 extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
71 extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
72 struct zone *zone, int priority);
73 extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
74 struct zone *zone, int priority);
76 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
77 static inline void mm_init_cgroup(struct mm_struct *mm,
78 struct task_struct *p)
82 static inline void mm_free_cgroup(struct mm_struct *mm)
86 static inline void page_reset_bad_cgroup(struct page *page)
90 static inline struct page_cgroup *page_get_page_cgroup(struct page *page)
95 static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
101 static inline void mem_cgroup_uncharge(struct page_cgroup *pc)
105 static inline void mem_cgroup_uncharge_page(struct page *page)
109 static inline void mem_cgroup_move_lists(struct page *page, bool active)
113 static inline int mem_cgroup_cache_charge(struct page *page,
114 struct mm_struct *mm,
120 static inline int mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem)
125 static inline int task_in_mem_cgroup(struct task_struct *task,
126 const struct mem_cgroup *mem)
131 static inline int mem_cgroup_prepare_migration(struct page *page)
136 static inline void mem_cgroup_end_migration(struct page *page)
141 mem_cgroup_page_migration(struct page *page, struct page *newpage)
145 static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
150 static inline int mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem)
155 static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem)
160 static inline void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
165 static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
170 static inline long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
171 struct zone *zone, int priority)
176 static inline long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
177 struct zone *zone, int priority)
181 #endif /* CONFIG_CGROUP_MEM_CONT */
183 #endif /* _LINUX_MEMCONTROL_H */