sched: Change autogroup_move_group() to use for_each_thread()

Change autogroup_move_group() to use for_each_thread() instead of
buggy while_each_thread().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Frank Mayhar <fmayhar@google.com>
Cc: Frederic Weisbecker <fweisbec@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Sanjay Rao <srao@redhat.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20140813192003.GA19334@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
index e73efba98301..8a2e230fb86a 100644
--- a/kernel/sched/auto_group.c
+++ b/kernel/sched/auto_group.c
@@ -148,11 +148,8 @@ autogroup_move_group(struct task_struct *p, struct autogroup *ag)
         if (!ACCESS_ONCE(sysctl_sched_autogroup_enabled))
                 goto out;
 
-        t = p;
-        do {
+        for_each_thread(p, t)
                 sched_move_task(t);
-        } while_each_thread(p, t);
-
 out:
         unlock_task_sighand(p, &flags);
         autogroup_kref_put(prev);