From 8651c65844e93af44554272b7e0d2b142837b244 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 21 Sep 2014 21:33:36 +0200 Subject: [PATCH] sched: Fix the task-group check in tg_has_rt_tasks() tg_has_rt_tasks() wants to find an RT task in this task_group, but task_rq(p)->rt.tg wrongly checks the root rt_rq. Signed-off-by: Oleg Nesterov Reviewed-by: Kirill Tkhai Signed-off-by: Peter Zijlstra (Intel) Cc: Mike Galbraith Link: http://lkml.kernel.org/r/20140921193336.GA28618@redhat.com Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 09bde2ab2a0a..0abfb7ec9e62 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7441,7 +7441,7 @@ static inline int tg_has_rt_tasks(struct task_group *tg) struct task_struct *g, *p; for_each_process_thread(g, p) { - if (rt_task(p) && task_rq(p)->rt.tg == tg) + if (rt_task(p) && task_group(p) == tg) return 1; } -- GitLab