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, 33 insertions, 0 deletions

diff --git a/debian/patches-rt/0106-sched-Limit-the-number-of-task-migrations-per-batch.patch b/debian/patches-rt/0106-sched-Limit-the-number-of-task-migrations-per-batch.patch
new file mode 100644
index 000000000..7c34d3924
--- /dev/null
+++ b/debian/patches-rt/0106-sched-Limit-the-number-of-task-migrations-per-batch.patch
@@ -0,0 +1,33 @@
+From 6447e629affa080b84d75e0f685848104a5601ee Mon Sep 17 00:00:00 2001
+From: Thomas Gleixner <tglx@linutronix.de>
+Date: Mon, 6 Jun 2011 12:12:51 +0200
+Subject: [PATCH 106/347] sched: Limit the number of task migrations per batch
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
+
+Put an upper limit on the number of tasks which are migrated per batch
+to avoid large latencies.
+
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+---
+ kernel/sched/core.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index 0f949b7738fd..4cc39856c4c6 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -44,7 +44,11 @@ const_debug unsigned int sysctl_sched_features =
+  * Number of tasks to iterate in a single balance run.
+  * Limited because this is done with IRQs disabled.
+  */
++#ifdef CONFIG_PREEMPT_RT_FULL
++const_debug unsigned int sysctl_sched_nr_migrate = 8;
++#else
+ const_debug unsigned int sysctl_sched_nr_migrate = 32;
++#endif
+ 
+ /*
+  * period over which we measure -rt task CPU usage in us.
+-- 
+2.36.1
+