From: Alex Zarochentsev <zam@namesys.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: Roman Zippel <zippel@linux-m68k.org>, Paul Jackson <pj@sgi.com>,
William Lee Irwin III <wli@holomorphy.com>,
Hans Reiser <reiser@namesys.com>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: Re: 2.6.9-rc1-mm4 sparc reiser4 build broken - undefined atomic_sub_and_test
Date: Mon, 13 Sep 2004 21:19:36 +0400 [thread overview]
Message-ID: <20040913171936.GC2252@backtop.namesys.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0409131545100.17907-100000@localhost.localdomain>
On Mon, Sep 13, 2004 at 03:58:37PM +0100, Hugh Dickins wrote:
> On Mon, 13 Sep 2004, Roman Zippel wrote:
> >
> > So why not add the missing atomic_sub_and_test() (using simply
> > atomic_sub_return)?
>
> sparc and s390 are not the only arches lacking atomic_sub_and_test.
>
> Go ahead and send the patches changing all the arches that have it to
> define __ARCH_HAS_ATOMIC_SUB_AND_TEST, and add asm-generic/atomic.h
> for those that don't etc; but to me that seems like a waste of time -
> unless Zam convinces us that Reiser4 will need every last ounce of
I do not, Hans will ;-)
I just like to know what atomic.h common functions would be in 2.6.9+, because
nowdays the API is not consisent accross the arches.
atomic_sub_return() is OK.
> cpu on this particular line of code.
>
> Hugh
--
Alex.
next prev parent reply other threads:[~2004-09-13 17:28 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-12 10:12 2.6.9-rc1-mm4 sparc reiser4 build broken - undefined atomic_sub_and_test Paul Jackson
2004-09-12 10:54 ` William Lee Irwin III
2004-09-12 16:33 ` Alex Zarochentsev
2004-09-12 18:49 ` Paul Jackson
2004-09-12 19:48 ` Alex Zarochentsev
2004-09-13 12:42 ` Hugh Dickins
2004-09-13 13:25 ` Roman Zippel
2004-09-13 13:51 ` Hugh Dickins
2004-09-13 14:10 ` Roman Zippel
2004-09-13 14:58 ` Hugh Dickins
2004-09-13 16:03 ` Roman Zippel
2004-09-13 16:20 ` Hugh Dickins
2004-09-13 20:03 ` Tonnerre
2004-09-13 20:18 ` Roman Zippel
2004-09-13 20:18 ` 2.6.9-rc1-mm4 sparc reiser4 build broken - undefined atomic_s ub_and_test Hugh Dickins
2004-09-13 17:19 ` Alex Zarochentsev [this message]
2004-09-14 2:06 ` 2.6.9-rc1-mm4 sparc reiser4 build broken - undefined atomic_sub_and_test William Lee Irwin III
2004-09-14 9:00 ` Roman Zippel
2004-09-14 9:10 ` William Lee Irwin III
2004-09-14 9:15 ` [sparc32] add atomic_sub_and_test() to make reiser4 code microoptimized for x86 compile on sparc32 William Lee Irwin III
2004-09-14 15:38 ` William Lee Irwin III
-- strict thread matches above, loose matches on Subject: below --
2004-09-13 17:14 2.6.9-rc1-mm4 sparc reiser4 build broken - undefined atomic_sub_and_test Martin Schwidefsky
2004-09-13 17:26 ` Roman Zippel
[not found] <OF6D4E73AE.1DB1AD2F-ON42256F0F.003132FF-42256F0F.00321365@de.ibm.com>
2004-09-14 9:40 ` Roman Zippel
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