this_cpu_try_cmpxchg_4
#define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) percpu_try_cmpxchg_op(4, volatile, pcp, ovalp, nval)
#define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \
#define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \