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| author |   Tejun Heo <tj@kernel.org> | 2015-06-26 17:21:28 -0400 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2015-07-14 17:43:56 -0400 |
| commit | 83cb8557e8d2c8e5eddc64840c437299343a7960 (patch) | |
| tree | 9ab1a6bfd66a540c3ec6b03fb0ad19ed03d2f64c /include/linux/percpu-defs.h | |
| parent | Linux 4.2-rc1 (diff) | |
| download | linux-dev-83cb8557e8d2c8e5eddc64840c437299343a7960.tar.xz linux-dev-83cb8557e8d2c8e5eddc64840c437299343a7960.zip | |
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 <tj@kernel.org>
Cc: Christoph Lameter <cl@linux-foundation.org>
Diffstat (limited to 'include/linux/percpu-defs.h')
| -rw-r--r-- | include/linux/percpu-defs.h | 6 |
1 files changed, 2 insertions, 4 deletions
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) |