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Alexey Dobriyan8ac773b2006-10-19 23:28:32 -07001#ifndef __INCLUDE_LINUX_OOM_H
2#define __INCLUDE_LINUX_OOM_H
3
David Rientjes5a3135c2007-10-16 23:25:53 -07004#include <linux/sched.h>
5
Alexey Dobriyan8ac773b2006-10-19 23:28:32 -07006/* /proc/<pid>/oom_adj set to -17 protects from the oom-killer */
7#define OOM_DISABLE (-17)
8/* inclusive */
9#define OOM_ADJUST_MIN (-16)
10#define OOM_ADJUST_MAX 15
11
David Rientjes5a3135c2007-10-16 23:25:53 -070012#ifdef __KERNEL__
13
David Rientjes70e24bd2007-10-16 23:25:53 -070014/*
15 * Types of limitations to the nodes from which allocations may occur
16 */
17enum oom_constraint {
18 CONSTRAINT_NONE,
19 CONSTRAINT_CPUSET,
20 CONSTRAINT_MEMORY_POLICY,
21};
22
David Rientjes5a3135c2007-10-16 23:25:53 -070023extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order);
24extern int register_oom_notifier(struct notifier_block *nb);
25extern int unregister_oom_notifier(struct notifier_block *nb);
26
27#endif /* __KERNEL__*/
28#endif /* _INCLUDE_LINUX_OOM_H */