136 struct vm_object {  struct
139 	TAILQ_ENTRY(vm_object) object_entry;  argument
151 	TAILQ_ENTRY(vm_object) pager_object_entry; /* optional use by pager */  argument
157 	 * Record threads holding a vm_object  argument
161 	char		debug_hold_thrs[VMOBJ_DEBUG_ARRAY_SIZE][64];
162 	const char	*debug_hold_file[VMOBJ_DEBUG_ARRAY_SIZE];
163 	int		debug_hold_line[VMOBJ_DEBUG_ARRAY_SIZE];
164 	int		debug_index;
167 	union {
178 	} un_pager;
185 	struct swblock_rb_tree swblock_root;
186 	long		swblock_count;
187 	struct md_object md;		/* machine specific (typ pmap) */