1 files changed, 75 insertions, 0 deletions
diff --git a/include/linux/oom.h b/include/linux/oom.h
new file mode 100644
index 00000000..3d764753
--- /dev/null
+++ b/include/linux/oom.h
@@ -0,0 +1,75 @@
+#ifndef __INCLUDE_LINUX_OOM_H
+#define __INCLUDE_LINUX_OOM_H
+
+/*
+ * /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 {
+	CONSTRAINT_NONE,
+	CONSTRAINT_CPUSET,
+	CONSTRAINT_MEMORY_POLICY,
+	CONSTRAINT_MEMCG,
+};
+
+extern void compare_swap_oom_score_adj(int old_val, int new_val);
+extern int test_set_oom_score_adj(int new_val);
+
+extern unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
+			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, bool force_kill);
+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;
+}
+
+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 */