linux-kernel - Re: [GIT PULL] x86/atomic changes for v2.6.35

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Message-ID: <AANLkTinWbueCQZdQgZFDLQPJYieB13orxDGYJzzRpPni@mail.gmail.com>
Date:	Wed, 19 May 2010 13:46:01 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Ingo Molnar <mingo@...e.hu>, Luca Barbieri <luca@...a-barbieri.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-arch@...r.kernel.org
Subject: Re: [GIT PULL] x86/atomic changes for v2.6.35

On Tue, May 18, 2010 at 00:45, Ingo Molnar <mingo@...e.hu> wrote:
> Please pull the latest x86-atomic-for-linus git tree from:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-atomic-for-linus
>
>
> out-of-topic modifications in x86-atomic-for-linus:
> ---------------------------------------------------
> lib/Makefile                       # 86a8938: lib: Add self-test for atomic64_t
> lib/atomic64.c                     # 9757789: lib: Fix atomic64_add_unless retu
> lib/atomic64_test.c                # a5c9161: x86, atomic64: In selftest, disti
>                                   # 25a304f: lib: Fix atomic64_inc_not_zero te
>                                   # 9efbcd5: lib: Fix atomic64_add_unless test
>                                   # d7f6de1: x86: Implement atomic[64]_dec_if_
>                                   # 8f4f202: lib: Only test atomic64_dec_if_po
>                                   # 86a8938: lib: Add self-test for atomic64_t

Is having atomic64_t mandatory now?

According to the allmodconfig build logs
(http://kisskb.ellerman.id.au/kisskb/matrix/),
several architectures (at least m68k and mips) don't have it.
Furthermore, the test fails to compile on a few architectures that do have it
(parisc, s390, sh, ...).

<boilerplate>
It's a pity this wasn't raised/resolved between its detection in linux-next and
before it entered mainline...
</boilerplate>

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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