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authorTejun Heo <tj@kernel.org>2015-06-26 17:21:28 -0400
committerTejun Heo <tj@kernel.org>2015-07-14 17:43:56 -0400
commit83cb8557e8d2c8e5eddc64840c437299343a7960 (patch)
tree9ab1a6bfd66a540c3ec6b03fb0ad19ed03d2f64c /include/linux/percpu-defs.h
parentd770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff)
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.h6
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)