Mandeep Singh Baines wrote:

In cgroup_attach_proc it is now sufficient to only check that
oldcgrp==newcgrp once. Now that we are using threadgroup_lock()
during the migrations, oldcgrp will not change.

Signed-off-by: Mandeep Singh Baines <redacted>

Reviewed-by: Li Zefan <redacted>

Cc: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <redacted>
Cc: containers@lists.linux-foundation.org
Cc: cgroups@vger.kernel.org
Cc: KAMEZAWA Hiroyuki <redacted>
Cc: Frederic Weisbecker <redacted>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Menage <redacted>
---
 kernel/cgroup.c |   17 ++++++-----------
 1 files changed, 6 insertions(+), 11 deletions(-)