blob: 5e3aa8311c5ed40f2598ccd814162bef5173030e [file] [log] [blame]
* /proc/<pid>/oom_adj is deprecated, see
* Documentation/feature-removal-schedule.txt.
* /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
* /proc/<pid>/oom_score_adj set to OOM_SCORE_ADJ_MIN disables oom killing for
* pid.
#define OOM_SCORE_ADJ_MIN (-1000)
#define OOM_SCORE_ADJ_MAX 1000
#ifdef __KERNEL__
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/nodemask.h>
struct zonelist;
struct notifier_block;
struct mem_cgroup;
struct task_struct;
* Types of limitations to the nodes from which allocations may occur
enum oom_constraint {
extern unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
const nodemask_t *nodemask, unsigned long totalpages);
extern int try_set_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags);
extern void clear_zonelist_oom(struct zonelist *zonelist, gfp_t gfp_flags);
extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
int order, nodemask_t *mask);
extern int register_oom_notifier(struct notifier_block *nb);
extern int unregister_oom_notifier(struct notifier_block *nb);
extern bool oom_killer_disabled;
static inline void oom_killer_disable(void)
oom_killer_disabled = true;
static inline void oom_killer_enable(void)
oom_killer_disabled = false;
/* The badness from the OOM killer */
extern unsigned long badness(struct task_struct *p, struct mem_cgroup *mem,
const nodemask_t *nodemask, unsigned long uptime);
extern struct task_struct *find_lock_task_mm(struct task_struct *p);
/* sysctls */
extern int sysctl_oom_dump_tasks;
extern int sysctl_oom_kill_allocating_task;
extern int sysctl_panic_on_oom;
#endif /* __KERNEL__*/
#endif /* _INCLUDE_LINUX_OOM_H */