[mirror_ubuntu-bionic-kernel.git] / include / linux / oom.h

#ifndef __INCLUDE_LINUX_OOM_H
#define __INCLUDE_LINUX_OOM_H

#include <linux/sched.h>

/* /proc/<pid>/oom_adj set to -17 protects from the oom-killer */
#define OOM_DISABLE (-17)
/* inclusive */
#define OOM_ADJUST_MIN (-16)
#define OOM_ADJUST_MAX 15

#ifdef __KERNEL__

/*
 * Types of limitations to the nodes from which allocations may occur
 */
enum oom_constraint {
	CONSTRAINT_NONE,
	CONSTRAINT_CPUSET,
	CONSTRAINT_MEMORY_POLICY,
};

extern int try_set_zone_oom(struct zonelist *zonelist);
extern void clear_zonelist_oom(struct zonelist *zonelist);

extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order);
extern int register_oom_notifier(struct notifier_block *nb);
extern int unregister_oom_notifier(struct notifier_block *nb);

#endif /* __KERNEL__*/
#endif /* _INCLUDE_LINUX_OOM_H */
Commit	Line	Data
8ac773b4 AD	1	#ifndef __INCLUDE_LINUX_OOM_H
	2	#define __INCLUDE_LINUX_OOM_H
	3
5a3135c2 DR	4	#include <linux/sched.h>
5a3135c2 DR	5
8ac773b4 AD	6	/* /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
5a3135c2 DR	12	#ifdef __KERNEL__
5a3135c2 DR	13
70e24bdf DR	14	/*
	15	* Types of limitations to the nodes from which allocations may occur
	16	*/
	17	enum oom_constraint {
	18	CONSTRAINT_NONE,
	19	CONSTRAINT_CPUSET,
	20	CONSTRAINT_MEMORY_POLICY,
	21	};
	22
098d7f12 DR	23	extern int try_set_zone_oom(struct zonelist *zonelist);
	24	extern void clear_zonelist_oom(struct zonelist *zonelist);
	25
5a3135c2 DR	26	extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order);
	27	extern int register_oom_notifier(struct notifier_block *nb);
	28	extern int unregister_oom_notifier(struct notifier_block *nb);
	29
	30	#endif /* __KERNEL__*/
	31	#endif /* _INCLUDE_LINUX_OOM_H */