Re: extattr namespaces

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Feb 13, 2012 at 10:37:25AM +0000, Emmanuel Dreyfus wrote:
> On Mon, Feb 13, 2012 at 11:27:29AM +0100, Manuel Bouyer wrote:
> > But then, if you see USER "foo.bar" in the filesystem, you don't know
> > if it should be mapped to user.foo.bar or foo.bar.
> > I don't think this can work.
> 
> If the disk is from FreeBSD, you mount with  -o stripxattr. When
> you read it, USER "foo.bar" becomes user.foo.bar. When you write 
> user.foo.bar, it is stored as USER "foo.bar". Therefore you can use 
> the Linux-like API and you will not screw up what is stored on disk.

And what happens if you write "baz.foo.bar" ? You could just error out in
this case.

> 
> If the disk is nativr, you mount without -o stripxattr, and USER "foo.bar"
> remains foo.bar when read. And when foo;bar is writte, it goes to  USER 
> "foo.bar"
> 
> It seems to work, doesn't it?

If a string which doesn't start with system or user errors out in
the stripxattr case, then it should work

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
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