Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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#include <linux/nodemask.h>
14
15struct zonelist;
16struct notifier_block;
17
18/*
19 * Types of limitations to the nodes from which allocations may occur
20 */
21enum oom_constraint {
22 CONSTRAINT_NONE,
23 CONSTRAINT_CPUSET,
24 CONSTRAINT_MEMORY_POLICY,
25};
26
27extern int try_set_zone_oom(struct zonelist *zonelist, gfp_t gfp_flags);
28extern void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags);
29
30extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
31 int order, nodemask_t *mask);
32extern int register_oom_notifier(struct notifier_block *nb);
33extern int unregister_oom_notifier(struct notifier_block *nb);
34
35extern bool oom_killer_disabled;
36
37static inline void oom_killer_disable(void)
38{
39 oom_killer_disabled = true;
40}
41
42static inline void oom_killer_enable(void)
43{
44 oom_killer_disabled = false;
45}
46#endif /* __KERNEL__*/
47#endif /* _INCLUDE_LINUX_OOM_H */