cgroups: add cpu_relax() calls in css_tryget() and cgroup_clear_css_refs()

[safe/jmp/linux-2.6] / kernel / user.c

diff --git a/kernel/user.c b/kernel/user.c
index 6c924bc..477b666 100644 (file)
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -104,6 +104,8 @@ static int sched_create_user(struct user_struct *up)
        if (IS_ERR(up->tg))
                rc = -ENOMEM;
 
+       set_tg_uid(up);
+
        return rc;
 }
 
@@ -239,7 +241,13 @@ static struct kobj_type uids_ktype = {
        .release = uids_release,
 };
 
-/* create /sys/kernel/uids/<uid>/cpu_share file for this user */
+/*
+ * Create /sys/kernel/uids/<uid>/cpu_share file for this user
+ * We do not create this file for users in a user namespace (until
+ * sysfs tagging is implemented).
+ *
+ * See Documentation/scheduler/sched-design-CFS.txt for ramifications.
+ */
 static int uids_user_create(struct user_struct *up)
 {
        struct kobject *kobj = &up->kobj;