From f3e55184e229a44534a25ff2494e1f27ae61d21a Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Sat, 27 May 2017 19:02:06 +0200 Subject: [PATCH 088/166] kernel/sched: add {put|get}_cpu_light() Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Thomas Gleixner --- include/linux/smp.h | 3 +++ 1 file changed, 3 insertions(+) Index: linux-5.15.32-rt39/include/linux/smp.h =================================================================== --- linux-5.15.32-rt39.orig/include/linux/smp.h +++ linux-5.15.32-rt39/include/linux/smp.h @@ -268,6 +268,9 @@ 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: