Commits
Quincey Koziol committed c751cdab335
[svn-r13744] Description:
Initial changes to take advantage of readers/writer locking on metadata
cache entries. Reduce the # of protect/unprotect pairs during B-tree iteration
by holding reader lock on B-tree and symbol table nodes while iteration occurs.
This also has the benefit of preventing an iteration callback from
modifying the B-tree being iterated over (which would probably confuse the
B-tree iteration code terribly)
Tested on:
Mac OS X/32 10.4.9 (amazon)
Linux/32 2.6 (chicago)
Linux/64 2.6 (chicago2)