mmiowb_state
#define arch_mmiowb_state() (&local_paca->mmiowb_state)
struct mmiowb_state mmiowb_state;
DUMP(p, mmiowb_state.nesting_count, "%#-*x");
DUMP(p, mmiowb_state.mmiowb_pending, "%#-*x");
DECLARE_PER_CPU(struct mmiowb_state, __mmiowb_state);
struct mmiowb_state *ms = __mmiowb_state();
struct mmiowb_state *ms = __mmiowb_state();
struct mmiowb_state *ms = __mmiowb_state();
DEFINE_PER_CPU(struct mmiowb_state, __mmiowb_state);