futex: Fix uninterruptible loop due to gate_area
[linux-2.6.git] / kernel / cgroup.c
index 9844580..b7ab0b8 100644 (file)
  */
 
 #include <linux/cgroup.h>
+#include <linux/cred.h>
 #include <linux/ctype.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
+#include <linux/init_task.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/mm.h>
@@ -1514,6 +1516,7 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
                struct cgroup *root_cgrp = &root->top_cgroup;
                struct inode *inode;
                struct cgroupfs_root *existing_root;
+               const struct cred *cred;
                int i;
 
                BUG_ON(sb->s_root != NULL);
@@ -1593,7 +1596,9 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
                BUG_ON(!list_empty(&root_cgrp->children));
                BUG_ON(root->number_of_cgroups != 1);
 
+               cred = override_creds(&init_cred);
                cgroup_populate_dir(root_cgrp);
+               revert_creds(cred);
                mutex_unlock(&cgroup_mutex);
                mutex_unlock(&inode->i_mutex);
        } else {
@@ -2093,11 +2098,6 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
                        continue;
                /* get old css_set pointer */
                task_lock(tsk);
-               if (tsk->flags & PF_EXITING) {
-                       /* ignore this task if it's going away */
-                       task_unlock(tsk);
-                       continue;
-               }
                oldcg = tsk->cgroups;
                get_css_set(oldcg);
                task_unlock(tsk);