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 #define page_reset_bad_cgroup(page) ((page)->page_cgroup = 0)
32 extern struct page_cgroup *page_get_page_cgroup(struct page *page);
33 extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
35 extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
37 extern void mem_cgroup_uncharge_page(struct page *page);
38 extern void mem_cgroup_move_lists(struct page *page, bool active);
39 extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
40 struct list_head *dst,
41 unsigned long *scanned, int order,
42 int mode, struct zone *z,
43 struct mem_cgroup *mem_cont,
45 extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask);
46 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem);
48 extern struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
50 #define mm_match_cgroup(mm, cgroup) \
51 ((cgroup) == mem_cgroup_from_task((mm)->owner))
53 extern int mem_cgroup_prepare_migration(struct page *page);
54 extern void mem_cgroup_end_migration(struct page *page);
55 extern void mem_cgroup_page_migration(struct page *page, struct page *newpage);
60 extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem);
61 extern long mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem);
63 extern int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem);
64 extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
66 extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
69 extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
70 struct zone *zone, int priority);
71 extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
72 struct zone *zone, int priority);
74 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
75 static inline void page_reset_bad_cgroup(struct page *page)
79 static inline struct page_cgroup *page_get_page_cgroup(struct page *page)
84 static inline int mem_cgroup_charge(struct page *page,
85 struct mm_struct *mm, gfp_t gfp_mask)
90 static inline int mem_cgroup_cache_charge(struct page *page,
91 struct mm_struct *mm, gfp_t gfp_mask)
96 static inline void mem_cgroup_uncharge_page(struct page *page)
100 static inline void mem_cgroup_move_lists(struct page *page, bool active)
104 static inline int mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem)
109 static inline int task_in_mem_cgroup(struct task_struct *task,
110 const struct mem_cgroup *mem)
115 static inline int mem_cgroup_prepare_migration(struct page *page)
120 static inline void mem_cgroup_end_migration(struct page *page)
125 mem_cgroup_page_migration(struct page *page, struct page *newpage)
129 static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
134 static inline int mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem)
139 static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem)
144 static inline void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
149 static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
154 static inline long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem,
155 struct zone *zone, int priority)
160 static inline long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem,
161 struct zone *zone, int priority)
165 #endif /* CONFIG_CGROUP_MEM_CONT */
167 #endif /* _LINUX_MEMCONTROL_H */