[PATCH 1/2] ubifs: Remove dead xattr code

[Josh Cartwright]

On Thu, Aug 20, 2015 at 10:48:38AM +0800, Dongsheng Yang wrote:
> On 08/20/2015 04:35 AM, Richard Weinberger wrote:
> >This is a partial revert of commit d7f0b70d30ffb9bbe6b8a3e1035cf0b79965ef53
> >("UBIFS: Add security.* XATTR support for the UBIFS").
> 
> Hi Richard,
> 	What about a full reverting of this commit. In ubifs, we
> *can* support any namespace of xattr including user, trusted, security
> or other anyone prefixed by any words. But we have a check_namespace()
> in xattr.c to limit what we want to support. That said, if we want to
> "Add security.* XATTR support for the UBIFS", what we need to do is
> just extending the check_namespace() to allow security namespace pass.
> And yes, check_namespace() have been supporting security namespace.

Is this good enough?  Yes, it'd mean that the xattrs end up on disk, but
then who's responsible for invoking the selected LSMs inode_init_security() hooks?
AFAICT, we'd still need to invoke security_inode_init_security for newly
created inodes (which, Richard's proposed commit still does).

Thanks,

  Josh (who, admittedly, is neither a filesystem nor security module guy :)
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