Function vm_map_process_deferred

freebsd/vm/vm_map.c:615–646

#define defer_next right

static void
vm_map_process_deferred(void)
{
	struct thread *td;
	vm_map_entry_t entry, next;
	vm_object_t object;

	td = curthread;
	entry = td->td_map_def_user;
	td->td_map_def_user = NULL;
	while (entry != NULL) {
		next = entry->defer_next;
		MPASS((entry->eflags & (MAP_ENTRY_WRITECNT |
		    MAP_ENTRY_VN_EXEC)) != (MAP_ENTRY_WRITECNT |
		    MAP_ENTRY_VN_EXEC));
		if ((entry->eflags & MAP_ENTRY_WRITECNT) != 0) {
			/*
			 * Decrement the object's writemappings and
			 * possibly the vnode's v_writecount.
			 */
			KASSERT((entry->eflags & MAP_ENTRY_IS_SUB_MAP) == 0,
			    ("Submap with writecount"));
			object = entry->object.vm_object;
			KASSERT(object != NULL, ("No object for writecount"));
			vm_pager_release_writecount(object, entry->start,
			    entry->end);
		}
		vm_map_entry_set_vnode_text(entry, false);
		vm_map_entry_deallocate(entry, FALSE);
		entry = next;
	}
}

#ifdef INVARIANTS
static void