cpumem_enter
pc = cpumem_enter(pp->pr_cache);
r = cpumem_enter(p->p_cpurefs);
r = cpumem_enter(p->p_percpu);
c = cpumem_enter(p->p_percpu);
c = cpumem_enter(p->p_percpu);
stack = (struct pf_anchor_stackframe *)cpumem_enter(pf_anchor_stack);
stack = (struct pf_anchor_stackframe *)cpumem_enter(pf_anchor_stack);
stack = (struct pf_anchor_stackframe *)cpumem_enter(pf_anchor_stack);
stack = (struct pf_anchor_stackframe *)cpumem_enter(pf_anchor_stack);
stack = (struct pf_anchor_stackframe *)cpumem_enter(pf_anchor_stack);
stack = (struct pf_anchor_stackframe *)cpumem_enter(pf_anchor_stack);
ref->c = cpumem_enter(cm);