linux-kernel - Re: [PATCH AUTOSEL 6.1 35/35] ext4: deal with legacy signed xattr name hash values

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Message-ID: <Y9FSW2n1wPIwVjAN@mit.edu>
Date:   Wed, 25 Jan 2023 11:01:31 -0500
From:   "Theodore Ts'o" <tytso@....edu>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Sasha Levin <sashal@...nel.org>, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, kernel test robot <oliver.sang@...el.com>,
        Eric Biggers <ebiggers@...nel.org>,
        Andreas Dilger <adilger@...ger.ca>,
        Jason Donenfeld <Jason@...c4.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 6.1 35/35] ext4: deal with legacy signed xattr
 name hash values

On Tue, Jan 24, 2023 at 09:23:56AM -0800, Linus Torvalds wrote:
> On Tue, Jan 24, 2023 at 8:50 AM Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
> >
> > This patch does not work correctly without '-funsigned-char', and I
> > don't think that has been back-ported to stable kernels.
> >
> > That said, the patch *almost* works.
> 
> So I'm  not convinced this should be back-ported at all, but it's
> certainly true that going back and forth between the two cases would
> be problematic.

Yeah, I wouldn't backport this patch, since it also requires changes
to e2fsprogs that will take a while to propagate to stable distributions.

   	     	       	      	       		 - Ted