percpu_xchg_op 441 arch/x86/include/asm/percpu.h #define this_cpu_xchg_1(pcp, nval) percpu_xchg_op(volatile, pcp, nval) percpu_xchg_op 442 arch/x86/include/asm/percpu.h #define this_cpu_xchg_2(pcp, nval) percpu_xchg_op(volatile, pcp, nval) percpu_xchg_op 443 arch/x86/include/asm/percpu.h #define this_cpu_xchg_4(pcp, nval) percpu_xchg_op(volatile, pcp, nval) percpu_xchg_op 496 arch/x86/include/asm/percpu.h #define this_cpu_xchg_8(pcp, nval) percpu_xchg_op(volatile, pcp, nval)