There are several functions which, given an unknown pointer assumed to be a metaspace object, check if the pointer is indeed a metaspace object by walking the VirtualSpaceList and checking the ranges.

This can be avoided completely when the pointer is obviously bogus, or, in the case of MetaspaceObj::is_metaspace_obj(), not correctly aligned.

It could also be avoided when the address does not fall within a range of [lowest ever|highest ever), were the list to keep such a range.