2066 vm_object_coalesce(vm_object_t prev_object, vm_ooffset_t prev_offset,  in vm_object_coalesce()  argument
2071 	if (prev_object == NULL)  in vm_object_coalesce()
2073 	VM_OBJECT_WLOCK(prev_object);  in vm_object_coalesce()
2074 	if ((prev_object->type != OBJT_DEFAULT &&  in vm_object_coalesce()
2075 	    prev_object->type != OBJT_SWAP) ||  in vm_object_coalesce()
2076 	    (prev_object->flags & OBJ_NOSPLIT) != 0) {  in vm_object_coalesce()
2077 		VM_OBJECT_WUNLOCK(prev_object);  in vm_object_coalesce()
2084 	vm_object_collapse(prev_object);  in vm_object_coalesce()
2091 	if (prev_object->backing_object != NULL) {  in vm_object_coalesce()
2092 		VM_OBJECT_WUNLOCK(prev_object);  in vm_object_coalesce()
2100 	if (prev_object->ref_count > 1 &&  in vm_object_coalesce()
2101 	    prev_object->size != next_pindex &&  in vm_object_coalesce()
2102 	    (prev_object->flags & OBJ_ONEMAPPING) == 0) {  in vm_object_coalesce()
2103 		VM_OBJECT_WUNLOCK(prev_object);  in vm_object_coalesce()
2110 	if (prev_object->cred != NULL) {  in vm_object_coalesce()
2123 		    prev_object->cred)) {  in vm_object_coalesce()
2124 			VM_OBJECT_WUNLOCK(prev_object);  in vm_object_coalesce()
2127 		prev_object->charge += ptoa(next_size);  in vm_object_coalesce()
2134 	if (next_pindex < prev_object->size) {  in vm_object_coalesce()
2135 		vm_object_page_remove(prev_object, next_pindex, next_pindex +  in vm_object_coalesce()
2137 		if (prev_object->type == OBJT_SWAP)  in vm_object_coalesce()
2138 			swap_pager_freespace(prev_object,  in vm_object_coalesce()
2141 		if (prev_object->cred != NULL) {  in vm_object_coalesce()
2142 			KASSERT(prev_object->charge >=  in vm_object_coalesce()
2143 			    ptoa(prev_object->size - next_pindex),  in vm_object_coalesce()
2144 			    ("object %p overcharged 1 %jx %jx", prev_object,  in vm_object_coalesce()
2146 			prev_object->charge -= ptoa(prev_object->size -  in vm_object_coalesce()
2155 	if (next_pindex + next_size > prev_object->size)  in vm_object_coalesce()
2156 		prev_object->size = next_pindex + next_size;  in vm_object_coalesce()
2158 	VM_OBJECT_WUNLOCK(prev_object);  in vm_object_coalesce()