diff options
| -rw-r--r-- | include/linux/oom.h | 2 | ||||
| -rw-r--r-- | mm/memcontrol.c | 10 | ||||
| -rw-r--r-- | mm/oom_kill.c | 2 |
3 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/oom.h b/include/linux/oom.h index f209b683e11..5e3aa8311c5 100644 --- a/include/linux/oom.h +++ b/include/linux/oom.h @@ -66,6 +66,8 @@ static inline void oom_killer_enable(void) extern unsigned long badness(struct task_struct *p, struct mem_cgroup *mem, const nodemask_t *nodemask, unsigned long uptime); +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; diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ea5f5edf00b..f52b0a1861c 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -47,6 +47,7 @@ #include <linux/mm_inline.h> #include <linux/page_cgroup.h> #include <linux/cpu.h> +#include <linux/oom.h> #include "internal.h" #include <asm/uaccess.h> @@ -838,10 +839,13 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem) { int ret; struct mem_cgroup *curr = NULL; + struct task_struct *p; - task_lock(task); - curr = try_get_mem_cgroup_from_mm(task->mm); - task_unlock(task); + p = find_lock_task_mm(task); + if (!p) + return 0; + curr = try_get_mem_cgroup_from_mm(p->mm); + task_unlock(p); if (!curr) return 0; /* diff --git a/mm/oom_kill.c b/mm/oom_kill.c index d3def05a33d..5014e50644d 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -106,7 +106,7 @@ static void boost_dying_task_prio(struct task_struct *p, * pointer. Return p, or any of its subthreads with a valid ->mm, with * task_lock() held. */ -static struct task_struct *find_lock_task_mm(struct task_struct *p) +struct task_struct *find_lock_task_mm(struct task_struct *p) { struct task_struct *t = p; |