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1 | #ifndef __INCLUDE_LINUX_OOM_H |
2 | #define __INCLUDE_LINUX_OOM_H |
3 | |
4 | /* /proc/<pid>/oom_adj set to -17 protects from the oom-killer */ |
5 | #define OOM_DISABLE (-17) |
6 | /* inclusive */ |
7 | #define OOM_ADJUST_MIN (-16) |
8 | #define OOM_ADJUST_MAX 15 |
9 | |
10 | #ifdef __KERNEL__ |
11 | |
12 | #include <linux/types.h> |
13 | |
14 | struct zonelist; |
15 | struct notifier_block; |
16 | |
17 | /* |
18 | * Types of limitations to the nodes from which allocations may occur |
19 | */ |
20 | enum oom_constraint { |
21 | CONSTRAINT_NONE, |
22 | CONSTRAINT_CPUSET, |
23 | CONSTRAINT_MEMORY_POLICY, |
24 | }; |
25 | |
26 | extern int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_flags); |
27 | extern void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags); |
28 | |
29 | extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order); |
30 | extern int register_oom_notifier(struct notifier_block *nb); |
31 | extern int unregister_oom_notifier(struct notifier_block *nb); |
32 | |
33 | extern bool oom_killer_disabled; |
34 | |
35 | static inline void oom_killer_disable(void) |
36 | { |
37 | oom_killer_disabled = true; |
38 | } |
39 | |
40 | static inline void oom_killer_enable(void) |
41 | { |
42 | oom_killer_disabled = false; |
43 | } |
44 | #endif /* __KERNEL__*/ |
45 | #endif /* _INCLUDE_LINUX_OOM_H */ |
46 |
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