From 94d6a5f7341ebaff53d4e41cc81fab37f0d9fbed Mon Sep 17 00:00:00 2001 From: "Serge E. Hallyn" Date: Mon, 8 Dec 2008 15:52:21 -0600 Subject: user namespaces: document CFS behavior Documented the currently bogus state of support for CFS user groups with user namespaces. In particular, all users in a user namespace should be children of the user which created the user namespace. This is yet to be implemented. Signed-off-by: Serge E. Hallyn Acked-by: Dhaval Giani Signed-off-by: Serge E. Hallyn Signed-off-by: James Morris --- kernel/user.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'kernel/user.c') diff --git a/kernel/user.c b/kernel/user.c index 6c924bc48c08..6608a3d8ca61 100644 --- a/kernel/user.c +++ b/kernel/user.c @@ -239,7 +239,13 @@ static struct kobj_type uids_ktype = { .release = uids_release, }; -/* create /sys/kernel/uids//cpu_share file for this user */ +/* + * Create /sys/kernel/uids//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; -- cgit v1.2.3