fsid change of ZFS?
Pawel Jakub Dawidek
pjd at FreeBSD.org
Tue Aug 23 21:23:23 UTC 2011
On Tue, Aug 23, 2011 at 04:11:20PM -0400, Rick Macklem wrote:
> Pawel Jakub Dawidek wrote:
> > 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 get out of date someday, either.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!
> Here's the patch. (Hiroki could you please test this, thanks, rick.)
> ps: If the white space gets trashed, the same patch is at:
The patch is fine by me. Thanks, Rick!
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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