MFC	r261136:
MFC	r261136:

ext2fs: Re-enable reallocblk.

The major corruption issues affecting this code have been fixed.

Tested by:	Mike Ma

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase