Re: New reflink(2) syscall

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On Tue, May 05, 2009 at 12:56:58PM -0400, Chris Mason wrote:
> On Tue, 2009-05-05 at 09:47 -0700, Joel Becker wrote:
> > 	Because then you have to change the entire security structure,
> > and you aren't a snapshot anymore.
> 
> I won't argue with the security part, but the snapshot part could just
> as easily be defined by the data and not the inode.

	In ZFS/btrfs/WAFL/disk array snaps, if you go back to a snap
does the selinux context or acls or equivalent appear different?  I don't
think so, and I expect people would be really upset if they had to know
all the restorecon/acl-fu to get it right.

Joel

-- 

"Under capitalism, man exploits man.  Under Communism, it's just 
   the opposite."
				 - John Kenneth Galbraith

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker@xxxxxxxxxx
Phone: (650) 506-8127
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