diff options
| -rw-r--r-- | include/linux/memcontrol.h | 7 | ||||
| -rw-r--r-- | mm/memcontrol.c | 10 | ||||
| -rw-r--r-- | mm/oom_kill.c | 9 |
3 files changed, 19 insertions, 7 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 4f580268b1b7..42536c737d9c 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -48,6 +48,7 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask); extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); +int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem); static inline struct mem_cgroup *mm_cgroup(const struct mm_struct *mm) { @@ -110,6 +111,12 @@ static inline struct mem_cgroup *mm_cgroup(const struct mm_struct *mm) return NULL; } +static inline int task_in_mem_cgroup(struct task_struct *task, + const struct mem_cgroup *mem) +{ + return 1; +} + #endif /* CONFIG_CGROUP_MEM_CONT */ #endif /* _LINUX_MEMCONTROL_H */ diff --git a/mm/memcontrol.c b/mm/memcontrol.c index f6cdbf755ed3..2fadd4896a14 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -170,6 +170,16 @@ static void __mem_cgroup_move_lists(struct page_cgroup *pc, bool active) list_move(&pc->lru, &pc->mem_cgroup->inactive_list); } +int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem) +{ + int ret; + + task_lock(task); + ret = task->mm && mm_cgroup(task->mm) == mem; + task_unlock(task); + return ret; +} + /* * This routine assumes that the appropriate zone's lru lock is already held */ diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 64751dc9d997..ef5084dbc793 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -65,13 +65,6 @@ unsigned long badness(struct task_struct *p, unsigned long uptime, return 0; } -#ifdef CONFIG_CGROUP_MEM_CONT - if (mem != NULL && mm->mem_cgroup != mem) { - task_unlock(p); - return 0; - } -#endif - /* * The memory size of the process is the basis for the badness. */ @@ -223,6 +216,8 @@ static struct task_struct *select_bad_process(unsigned long *ppoints, /* skip the init task */ if (is_global_init(p)) continue; + if (mem && !task_in_mem_cgroup(p, mem)) + continue; /* * This task already has access to memory reserves and is |