On Tue, Aug 23, 2011 at 10:09:41AM -0400, Rick Macklem wrote: > Ok, I'll admit I wasn't very fond of a fixed table that would inevitably > get out of date someday, either. > > I didn't think hashing for the cases not in the table was worth the effort, > but doing a hash instead of a table seems reasonable. > > I see that ZFS only uses the low order 8 bits, so I'll try and come up > with an 8bit hash solution and will post a patch for testing/review soon. > > I don't think the vfs_sysctl() is that great a concern, given that it > appears to be deprecated already anyhow. (With an 8bit hash, vfs_typenum > won't be that sparse.) I'll also make sure that whatever hash I use > doesn't collide for the current list of file names (although I will include > code that handles a collision in the patch). Sounds great. Thanks! -- Pawel Jakub Dawidek http://www.wheelsystems.com FreeBSD committer http://www.FreeBSD.org Am I Evil? Yes, I Am! http://yomoli.com
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