summaryrefslogtreecommitdiff
path: root/include/linux/oom.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/oom.h')
-rw-r--r--include/linux/oom.h46
1 files changed, 8 insertions, 38 deletions
diff --git a/include/linux/oom.h b/include/linux/oom.h
index 5bc0457ee3a8..b4e36e92bc87 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -34,23 +34,11 @@ struct oom_control {
* for display purposes.
*/
const int order;
-};
-
-/*
- * Types of limitations to the nodes from which allocations may occur
- */
-enum oom_constraint {
- CONSTRAINT_NONE,
- CONSTRAINT_CPUSET,
- CONSTRAINT_MEMORY_POLICY,
- CONSTRAINT_MEMCG,
-};
-enum oom_scan_t {
- OOM_SCAN_OK, /* scan thread and find its badness */
- OOM_SCAN_CONTINUE, /* do not consider thread for oom kill */
- OOM_SCAN_ABORT, /* abort the iteration and return */
- OOM_SCAN_SELECT, /* always select this thread first */
+ /* Used by oom implementation, do not set */
+ unsigned long totalpages;
+ struct task_struct *chosen;
+ unsigned long chosen_points;
};
extern struct mutex oom_lock;
@@ -70,45 +58,27 @@ static inline bool oom_task_origin(const struct task_struct *p)
return p->signal->oom_flag_origin;
}
-extern void mark_oom_victim(struct task_struct *tsk);
-
-#ifdef CONFIG_MMU
-extern void wake_oom_reaper(struct task_struct *tsk);
-#else
-static inline void wake_oom_reaper(struct task_struct *tsk)
+static inline bool tsk_is_oom_victim(struct task_struct * tsk)
{
+ return tsk->signal->oom_mm;
}
-#endif
extern unsigned long oom_badness(struct task_struct *p,
struct mem_cgroup *memcg, const nodemask_t *nodemask,
unsigned long totalpages);
-extern void oom_kill_process(struct oom_control *oc, struct task_struct *p,
- unsigned int points, unsigned long totalpages,
- const char *message);
-
-extern void check_panic_on_oom(struct oom_control *oc,
- enum oom_constraint constraint);
-
-extern enum oom_scan_t oom_scan_process_thread(struct oom_control *oc,
- struct task_struct *task);
-
extern bool out_of_memory(struct oom_control *oc);
-extern void exit_oom_victim(struct task_struct *tsk);
+extern void exit_oom_victim(void);
extern int register_oom_notifier(struct notifier_block *nb);
extern int unregister_oom_notifier(struct notifier_block *nb);
-extern bool oom_killer_disabled;
-extern bool oom_killer_disable(void);
+extern bool oom_killer_disable(signed long timeout);
extern void oom_killer_enable(void);
extern struct task_struct *find_lock_task_mm(struct task_struct *p);
-bool task_will_free_mem(struct task_struct *task);
-
/* sysctls */
extern int sysctl_oom_dump_tasks;
extern int sysctl_oom_kill_allocating_task;