diff options
Diffstat (limited to 'features/rt/kernel-sched-add-put-get-_cpu_light.patch')
| -rw-r--r-- | features/rt/kernel-sched-add-put-get-_cpu_light.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/features/rt/kernel-sched-add-put-get-_cpu_light.patch b/features/rt/kernel-sched-add-put-get-_cpu_light.patch new file mode 100644 index 00000000..8cb9d552 --- /dev/null +++ b/features/rt/kernel-sched-add-put-get-_cpu_light.patch @@ -0,0 +1,27 @@ +From 7497b8dc12591dd237a63c9748b71666d48a2eb4 Mon Sep 17 00:00:00 2001 +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Sat, 27 May 2017 19:02:06 +0200 +Subject: [PATCH 101/191] kernel/sched: add {put|get}_cpu_light() + +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + include/linux/smp.h | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/include/linux/smp.h b/include/linux/smp.h +index 70c6f6284dcf..4c602ca3bc13 100644 +--- a/include/linux/smp.h ++++ b/include/linux/smp.h +@@ -238,6 +238,9 @@ static inline int get_boot_cpu_id(void) + #define get_cpu() ({ preempt_disable(); __smp_processor_id(); }) + #define put_cpu() preempt_enable() + ++#define get_cpu_light() ({ migrate_disable(); __smp_processor_id(); }) ++#define put_cpu_light() migrate_enable() ++ + /* + * Callback to arch code if there's nosmp or maxcpus=0 on the + * boot command line: +-- +2.19.1 + |