Merge commit 'origin/master' into next

1 files changed, 16 insertions, 3 deletions

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 1539e630c47d..3ce5ae9e3d2d 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1006,7 +1006,12 @@ static ssize_t oom_adjust_read(struct file *file, char __user *buf,
 
         if (!task)
                 return -ESRCH;
-        oom_adjust = task->oomkilladj;
+        task_lock(task);
+        if (task->mm)
+                oom_adjust = task->mm->oom_adj;
+        else
+                oom_adjust = OOM_DISABLE;
+        task_unlock(task);
         put_task_struct(task);
 
         len = snprintf(buffer, sizeof(buffer), "%i\n", oom_adjust);
@@ -1035,11 +1040,19 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf,
         task = get_proc_task(file->f_path.dentry->d_inode);
         if (!task)
                 return -ESRCH;
-        if (oom_adjust < task->oomkilladj && !capable(CAP_SYS_RESOURCE)) {
+        task_lock(task);
+        if (!task->mm) {
+                task_unlock(task);
+                put_task_struct(task);
+                return -EINVAL;
+        }
+        if (oom_adjust < task->mm->oom_adj && !capable(CAP_SYS_RESOURCE)) {
+                task_unlock(task);
                 put_task_struct(task);
                 return -EACCES;
         }
-        task->oomkilladj = oom_adjust;
+        task->mm->oom_adj = oom_adjust;
+        task_unlock(task);
         put_task_struct(task);
         if (end - buffer == 0)
                 return -EIO;