Commit 7d96b3e5 authored Feb 19, 2012 by Konstantin Khlebnikov Committed by Tejun Heo Feb 21, 2012

percpu: fix generic definition of __this_cpu_add_and_return()



This patch adds missed "__" into function prefix.
Otherwise on all archectures (except x86) it expands to irq/preemtion-safe
variant: _this_cpu_generic_add_return(), which do extra irq-save/irq-restore.
Optimal generic implementation is __this_cpu_generic_add_return().

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

parent 26dd8e02

include/linux/percpu.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -718,7 +718,8 @@ do { \
		# ifndef __this_cpu_add_return_8
		# define __this_cpu_add_return_8(pcp, val) __this_cpu_generic_add_return(pcp, val)
		# endif
		# define __this_cpu_add_return(pcp, val) __pcpu_size_call_return2(this_cpu_add_return_, pcp, val)
		# define __this_cpu_add_return(pcp, val) \
		__pcpu_size_call_return2(__this_cpu_add_return_, pcp, val)
		#endif

		#define __this_cpu_sub_return(pcp, val) this_cpu_add_return(pcp, -(val))