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 int mem_cgroup_newpage_charge(struct page *page, struct mm_struct *mm,
32 /* for swap handling */
33 extern int mem_cgroup_try_charge(struct mm_struct *mm,
34 gfp_t gfp_mask, struct mem_cgroup **ptr);
35 extern int mem_cgroup_try_charge_swapin(struct mm_struct *mm,
36 struct page *page, gfp_t mask, struct mem_cgroup **ptr);
37 extern void mem_cgroup_commit_charge_swapin(struct page *page,
38 struct mem_cgroup *ptr);
39 extern void mem_cgroup_cancel_charge_swapin(struct mem_cgroup *ptr);
41 extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
43 extern void mem_cgroup_move_lists(struct page *page, enum lru_list lru);
44 extern void mem_cgroup_uncharge_page(struct page *page);
45 extern void mem_cgroup_uncharge_cache_page(struct page *page);
46 extern int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask);
48 extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
49 struct list_head *dst,
50 unsigned long *scanned, int order,
51 int mode, struct zone *z,
52 struct mem_cgroup *mem_cont,
53 int active, int file);
54 extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask);
55 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem);
57 extern struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
59 #define mm_match_cgroup(mm, cgroup) \
60 ((cgroup) == mem_cgroup_from_task((mm)->owner))
63 mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr);
64 extern void mem_cgroup_end_migration(struct mem_cgroup *mem,
65 struct page *oldpage, struct page *newpage);
70 extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem);
71 extern long mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem);
73 extern int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem);
74 extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
76 extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
79 extern long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, struct zone *zone,
80 int priority, enum lru_list lru);
82 #ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
83 extern int do_swap_account;
85 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
88 static inline int mem_cgroup_newpage_charge(struct page *page,
89 struct mm_struct *mm, gfp_t gfp_mask)
94 static inline int mem_cgroup_cache_charge(struct page *page,
95 struct mm_struct *mm, gfp_t gfp_mask)
100 static inline int mem_cgroup_try_charge(struct mm_struct *mm,
101 gfp_t gfp_mask, struct mem_cgroup **ptr)
106 static inline int mem_cgroup_try_charge_swapin(struct mm_struct *mm,
107 struct page *page, gfp_t gfp_mask, struct mem_cgroup **ptr)
112 static inline void mem_cgroup_commit_charge_swapin(struct page *page,
113 struct mem_cgroup *ptr)
117 static inline void mem_cgroup_cancel_charge_swapin(struct mem_cgroup *ptr)
121 static inline void mem_cgroup_uncharge_page(struct page *page)
125 static inline void mem_cgroup_uncharge_cache_page(struct page *page)
129 static inline int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask)
134 static inline void mem_cgroup_move_lists(struct page *page, bool active)
138 static inline int mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem)
143 static inline int task_in_mem_cgroup(struct task_struct *task,
144 const struct mem_cgroup *mem)
150 mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr)
155 static inline void mem_cgroup_end_migration(struct mem_cgroup *mem,
156 struct page *oldpage,
157 struct page *newpage)
161 static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
166 static inline int mem_cgroup_reclaim_imbalance(struct mem_cgroup *mem)
171 static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup *mem)
176 static inline void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem,
181 static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem,
186 static inline long mem_cgroup_calc_reclaim(struct mem_cgroup *mem,
187 struct zone *zone, int priority,
192 #endif /* CONFIG_CGROUP_MEM_CONT */
194 #endif /* _LINUX_MEMCONTROL_H */