diff options
Diffstat (limited to 'include/linux/oom.h')
| -rw-r--r-- | include/linux/oom.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/oom.h b/include/linux/oom.h index 922dab164eb..da60007075b 100644 --- a/include/linux/oom.h +++ b/include/linux/oom.h @@ -29,8 +29,23 @@ enum oom_scan_t { OOM_SCAN_SELECT, /* always select this thread first */ }; -extern void compare_swap_oom_score_adj(short old_val, short new_val); -extern short test_set_oom_score_adj(short new_val); +/* Thread is the potential origin of an oom condition; kill first on oom */ +#define OOM_FLAG_ORIGIN ((__force oom_flags_t)0x1) + +static inline void set_current_oom_origin(void) +{ + current->signal->oom_flags |= OOM_FLAG_ORIGIN; +} + +static inline void clear_current_oom_origin(void) +{ + current->signal->oom_flags &= ~OOM_FLAG_ORIGIN; +} + +static inline bool oom_task_origin(const struct task_struct *p) +{ + return !!(p->signal->oom_flags & OOM_FLAG_ORIGIN); +} extern unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg, const nodemask_t *nodemask, |