1 files changed, 42 insertions, 0 deletions

diff --git a/recipes-kernel/linux/files/patches/sched-nohz-Fix-overflow-error-in-scheduler_tick_max_.patch b/recipes-kernel/linux/files/patches/sched-nohz-Fix-overflow-error-in-scheduler_tick_max_.patch
new file mode 100644
index 0000000..0c60d55
--- /dev/null
+++ b/recipes-kernel/linux/files/patches/sched-nohz-Fix-overflow-error-in-scheduler_tick_max_.patch
@@ -0,0 +1,42 @@
+From 619480006f78ebf87d80b73d4085a52a1de56feb Mon Sep 17 00:00:00 2001
+From: Martin Borg <martin.borg@enea.com>
+Date: Mon, 3 Mar 2014 13:34:43 +0100
+Subject: [PATCH 1/2] sched/nohz: Fix overflow error in
+ scheduler_tick_max_deferment()
+
+---
+ include/linux/jiffies.h |    4 ++++
+ kernel/sched/core.c     |    2 +-
+ 2 files changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
+index 8fb8edf..ac69959 100644
+--- a/include/linux/jiffies.h
++++ b/include/linux/jiffies.h
+@@ -290,6 +290,10 @@ extern unsigned long preset_lpj;
+  */
+ extern unsigned int jiffies_to_msecs(const unsigned long j);
+ extern unsigned int jiffies_to_usecs(const unsigned long j);
++static inline u64 jiffies_to_nsecs(const unsigned long j)
++{
++       return (u64)jiffies_to_usecs(j) * NSEC_PER_USEC;
++}
+ extern unsigned long msecs_to_jiffies(const unsigned int m);
+ extern unsigned long usecs_to_jiffies(const unsigned int u);
+ extern unsigned long timespec_to_jiffies(const struct timespec *value);
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index 59c7367..8c3d8bf 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -2779,7 +2779,7 @@ u64 scheduler_tick_max_deferment(void)
+        if (time_before_eq(next, now))
+                return 0;
+ 
+-       return jiffies_to_usecs(next - now) * NSEC_PER_USEC;
++       return jiffies_to_nsecs(next - now);
+ }
+ 
+ static __init int sched_nohz_full_init_debug(void)
+-- 
+1.7.10.4
+