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-rw-r--r--include/linux/memcontrol.h8
-rw-r--r--include/linux/oom.h14
-rw-r--r--include/linux/sched.h3
3 files changed, 23 insertions, 2 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 9f1afd361583..73564cac38c7 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -125,6 +125,8 @@ void mem_cgroup_update_file_mapped(struct page *page, int val);
unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
gfp_t gfp_mask, int nid,
int zid);
+u64 mem_cgroup_get_limit(struct mem_cgroup *mem);
+
#else /* CONFIG_CGROUP_MEM_RES_CTLR */
struct mem_cgroup;
@@ -304,6 +306,12 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
return 0;
}
+static inline
+u64 mem_cgroup_get_limit(struct mem_cgroup *mem)
+{
+ return 0;
+}
+
#endif /* CONFIG_CGROUP_MEM_CONT */
#endif /* _LINUX_MEMCONTROL_H */
diff --git a/include/linux/oom.h b/include/linux/oom.h
index 40e5e3a6bc20..73b8d7b6dd19 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -1,14 +1,24 @@
#ifndef __INCLUDE_LINUX_OOM_H
#define __INCLUDE_LINUX_OOM_H
-/* /proc/<pid>/oom_adj set to -17 protects from the oom-killer */
+/*
+ * /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>
@@ -27,6 +37,8 @@ enum oom_constraint {
CONSTRAINT_MEMCG,
};
+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);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9591907c4f79..ce160d68f5e7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -621,7 +621,8 @@ struct signal_struct {
struct tty_audit_buf *tty_audit_buf;
#endif
- int oom_adj; /* OOM kill score adjustment (bit shift) */
+ int oom_adj; /* OOM kill score adjustment (bit shift) */
+ int oom_score_adj; /* OOM kill score adjustment */
};
/* Context switch must be unlocked if interrupts are to be enabled */