linux-kernel - Re: [PATCH v2 02/24] exec: Simplify unshare

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Message-ID: <87lfehx3is.fsf@mpe.ellerman.id.au>
Date:   Tue, 01 Dec 2020 20:46:19 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Arnd Bergmann <arnd@...nel.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     Geoff Levand <geoff@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v2 02/24] exec: Simplify unshare_files

Arnd Bergmann <arnd@...nel.org> writes:
...
>
> If there are no objections, I can also send a patch to remove
> CONFIG_PPC_CELL_NATIVE, PPC_IBM_CELL_BLADE and
> everything that depends on those symbols, leaving only the
> bits needed by ps3 in the arch/powerpc/platforms/cell directory.

I'm not sure I'd merge it.

The only way I am able to (easily) test Cell code is by using one of
those blades, a QS22 to be precise.

So if the blade support is removed then the rest of the Cell code is
likely to bitrot quickly. Which may be the goal.

I'd be more inclined to support removal of the core dump code. That
seems highly unlikely to be in active use, I don't have the impression
there are many folks doing active development on Cell.

cheers