K 10 svn:author V 8 mckusick K 8 svn:date V 27 2002-02-02T01:42:44.000000Z K 7 svn:log V 261 When taking a snapshot, we must check for active files that have been unlinked (e.g., with a zero link count). We have to expunge all trace of these files from the snapshot so that they are neither reclaimed prematurely by fsck nor saved unnecessarily by dump. END