From: Scott Wood <swood@redhat.com>
Date: Fri, 24 Jan 2020 06:11:47 -0500
Subject: [PATCH] sched: migrate_enable: Remove __schedule() call
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
Git-commit: 9cf4d2227a896a0aaf753dd8875167e0ab391fbc
Patch-mainline: Queued in subsystem maintainer repository
References: SLE Realtime Extension
We can rely on preempt_enable() to schedule. Besides simplifying the
code, this potentially allows sequences such as the following to be
permitted:
migrate_disable();
preempt_disable();
migrate_enable();
preempt_enable();
Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Scott Wood <swood@redhat.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
---
kernel/sched/core.c | 1 -
1 file changed, 1 deletion(-)
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -8189,7 +8189,6 @@ void migrate_enable(void)
stop_one_cpu_nowait(task_cpu(p), migration_cpu_stop,
arg, work);
- __schedule(true);
}
out: