From: Tejun Heo Date: Fri, 26 Jun 2015 21:21:28 +0000 (-0400) Subject: percpu: update incorrect comment for this_cpu_*() operations X-Git-Url: http://drtracing.org/?a=commitdiff_plain;ds=sidebyside;h=83cb8557e8d2c8e5eddc64840c437299343a7960;p=deliverable%2Flinux.git percpu: update incorrect comment for this_cpu_*() operations this_cpu_*() ops have been protected against both preemption and interrupts for quite a while now. We apparently forgot to update the comment. Fix it. Signed-off-by: Tejun Heo Cc: Christoph Lameter --- diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h index 57f3a1c550dc..8f16299ca068 100644 --- a/include/linux/percpu-defs.h +++ b/include/linux/percpu-defs.h @@ -488,10 +488,8 @@ do { \ #define __this_cpu_dec_return(pcp) __this_cpu_add_return(pcp, -1) /* - * Operations with implied preemption protection. These operations can be - * used without worrying about preemption. Note that interrupts may still - * occur while an operation is in progress and if the interrupt modifies - * the variable too then RMW actions may not be reliable. + * Operations with implied preemption/interrupt protection. These + * operations can be used without worrying about preemption or interrupt. */ #define this_cpu_read(pcp) __pcpu_size_call_return(this_cpu_read_, pcp) #define this_cpu_write(pcp, val) __pcpu_size_call(this_cpu_write_, pcp, val)