Adding debian version 4.19.249-2.debian/4.19.249-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/debian/patches-rt/0127-rtmutex-trylock-is-okay-on-RT.patch b/debian/patches-rt/0127-rtmutex-trylock-is-okay-on-RT.patch
new file mode 100644
index 000000000..292becc02
--- /dev/null
+++ b/debian/patches-rt/0127-rtmutex-trylock-is-okay-on-RT.patch
@@ -0,0 +1,34 @@
+From 0b94209cb7e2a97538d5f7cf08c0d1433cc83b05 Mon Sep 17 00:00:00 2001
+From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+Date: Wed, 2 Dec 2015 11:34:07 +0100
+Subject: [PATCH 127/347] rtmutex: trylock is okay on -RT
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
+
+non-RT kernel could deadlock on rt_mutex_trylock() in softirq context. On
+-RT we don't run softirqs in IRQ context but in thread context so it is
+not a issue here.
+
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ kernel/locking/rtmutex.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
+index a5ec4f68527e..4bec24dfafc6 100644
+--- a/kernel/locking/rtmutex.c
++++ b/kernel/locking/rtmutex.c
+@@ -1583,7 +1583,11 @@ int __sched rt_mutex_trylock(struct rt_mutex *lock)
+ {
+ 	int ret;
+ 
++#ifdef CONFIG_PREEMPT_RT_FULL
++	if (WARN_ON_ONCE(in_irq() || in_nmi()))
++#else
+ 	if (WARN_ON_ONCE(in_irq() || in_nmi() || in_serving_softirq()))
++#endif
+ 		return 0;
+ 
+ 	ret = rt_mutex_fasttrylock(lock, rt_mutex_slowtrylock);
+-- 
+2.36.1
+