this_cpu_write_4
#define this_cpu_write_4(pcp, val) \
#define this_cpu_write_4(pcp, val) _percpu_write(4, pcp, val)
#define this_cpu_write_4(pcp, val) arch_this_cpu_write(pcp, val, "st")
#define this_cpu_write_4(pcp, val) __raw_cpu_write(4, volatile, pcp, val)
#define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =)