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_uncharge_cache_page(struct page
*page
);
39 extern void mem_cgroup_move_lists(struct page
*page
, bool active
);
40 extern int mem_cgroup_shrink_usage(struct mm_struct
*mm
, gfp_t gfp_mask
);
42 extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan
,
43 struct list_head
*dst
,
44 unsigned long *scanned
, int order
,
45 int mode
, struct zone
*z
,
46 struct mem_cgroup
*mem_cont
,
47 int active
, int file
);
48 extern void mem_cgroup_out_of_memory(struct mem_cgroup
*mem
, gfp_t gfp_mask
);
49 int task_in_mem_cgroup(struct task_struct
*task
, const struct mem_cgroup
*mem
);
51 extern struct mem_cgroup
*mem_cgroup_from_task(struct task_struct
*p
);
53 #define mm_match_cgroup(mm, cgroup) \
54 ((cgroup) == mem_cgroup_from_task((mm)->owner))
57 mem_cgroup_prepare_migration(struct page
*page
, struct page
*newpage
);
58 extern void mem_cgroup_end_migration(struct page
*page
);
63 extern int mem_cgroup_calc_mapped_ratio(struct mem_cgroup
*mem
);
64 extern long mem_cgroup_reclaim_imbalance(struct mem_cgroup
*mem
);
66 extern int mem_cgroup_get_reclaim_priority(struct mem_cgroup
*mem
);
67 extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup
*mem
,
69 extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup
*mem
,
72 extern long mem_cgroup_calc_reclaim(struct mem_cgroup
*mem
, struct zone
*zone
,
73 int priority
, enum lru_list lru
);
75 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
76 static inline void page_reset_bad_cgroup(struct page
*page
)
80 static inline struct page_cgroup
*page_get_page_cgroup(struct page
*page
)
85 static inline int mem_cgroup_charge(struct page
*page
,
86 struct mm_struct
*mm
, gfp_t gfp_mask
)
91 static inline int mem_cgroup_cache_charge(struct page
*page
,
92 struct mm_struct
*mm
, gfp_t gfp_mask
)
97 static inline void mem_cgroup_uncharge_page(struct page
*page
)
101 static inline void mem_cgroup_uncharge_cache_page(struct page
*page
)
105 static inline int mem_cgroup_shrink_usage(struct mm_struct
*mm
, gfp_t gfp_mask
)
110 static inline void mem_cgroup_move_lists(struct page
*page
, bool active
)
114 static inline int mm_match_cgroup(struct mm_struct
*mm
, struct mem_cgroup
*mem
)
119 static inline int task_in_mem_cgroup(struct task_struct
*task
,
120 const struct mem_cgroup
*mem
)
126 mem_cgroup_prepare_migration(struct page
*page
, struct page
*newpage
)
131 static inline void mem_cgroup_end_migration(struct page
*page
)
135 static inline int mem_cgroup_calc_mapped_ratio(struct mem_cgroup
*mem
)
140 static inline int mem_cgroup_reclaim_imbalance(struct mem_cgroup
*mem
)
145 static inline int mem_cgroup_get_reclaim_priority(struct mem_cgroup
*mem
)
150 static inline void mem_cgroup_note_reclaim_priority(struct mem_cgroup
*mem
,
155 static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup
*mem
,
160 static inline long mem_cgroup_calc_reclaim(struct mem_cgroup
*mem
,
161 struct zone
*zone
, int priority
,
166 #endif /* CONFIG_CGROUP_MEM_CONT */
168 #endif /* _LINUX_MEMCONTROL_H */