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Commit ba6f5c2a authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
Browse files

s390/percpu: implement this_cpu_add_return() 



Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 28634a07

arch/s390/include/asm/percpu.h

+8 −2
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ 
#endif



#define arch_this_cpu_to_op(pcp, val, op)				\

do {									\

({									\

	typedef typeof(pcp) pcp_op_T__;					\

	pcp_op_T__ old__, new__, prev__;				\

	pcp_op_T__ *ptr__;						\
@@ -39,13 +39,19 @@ do { \ 
		}							\

	} while (prev__ != old__);					\

	preempt_enable();						\

} while (0)

	new__;								\

})



#define this_cpu_add_1(pcp, val) arch_this_cpu_to_op(pcp, val, +)

#define this_cpu_add_2(pcp, val) arch_this_cpu_to_op(pcp, val, +)

#define this_cpu_add_4(pcp, val) arch_this_cpu_to_op(pcp, val, +)

#define this_cpu_add_8(pcp, val) arch_this_cpu_to_op(pcp, val, +)



#define this_cpu_add_return_1(pcp, val) arch_this_cpu_to_op(pcp, val, +)

#define this_cpu_add_return_2(pcp, val) arch_this_cpu_to_op(pcp, val, +)

#define this_cpu_add_return_4(pcp, val) arch_this_cpu_to_op(pcp, val, +)

#define this_cpu_add_return_8(pcp, val) arch_this_cpu_to_op(pcp, val, +)



#define this_cpu_and_1(pcp, val) arch_this_cpu_to_op(pcp, val, &)

#define this_cpu_and_2(pcp, val) arch_this_cpu_to_op(pcp, val, &)

#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, &)