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