[PATCH RT 09/17] kernel: softirq: unlock with irqs on
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2016-03-02 15:45:18
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2016-03-02 15:45:18
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
3.14.61-rt64-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We unlock the lock while the interrupts are off. This isn't a problem now but will get because the migrate_disable() + enable are not symmetrical in regard to the status of interrupts. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- kernel/softirq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 8821db3f07e6..250669395a5f 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c@@ -563,8 +563,10 @@ static void do_current_softirqs(int need_rcu_bh_qs) do_single_softirq(i, need_rcu_bh_qs); } softirq_clr_runner(i); - unlock_softirq(i); WARN_ON(current->softirq_nestcnt != 1); + local_irq_enable(); + unlock_softirq(i); + local_irq_disable(); } }
--
2.7.0