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From: Michael Schnell <mschnell@lumino.de>
To: nios2-dev <nios2-dev@sopc.et.ntust.edu.tw>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: atomic RAM ?
Date: Wed, 14 Apr 2010 14:46:13 +0200	[thread overview]
Message-ID: <4BC5B915.6090803@lumino.de> (raw)
In-Reply-To: <20100408143750.0acebaa1@lxorguk.ukuu.org.uk>

On 04/08/2010 03:37 PM, Alan Cox wrote:
> FUTEX  ... is an implementation ...  for certain classes of processor.

Alan,

If that is true "in depth", there should be no FUTEX-relevant  code,
neither in the Kernel, nor in the library, that should be considered
"arch-independent".

If so, we could happily create a "atomic hardware RAM" - based (or
whatever type of) FUTEX for the arch in question in the arch's source
files, without needing to take care of what happens in the rest of the
Kernel or Library code.

Provided this implementing the idea I presented might be a doable task.

-Michael

  parent reply	other threads:[~2010-04-14 12:46 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-08  7:32 atomic RAM ? Michael Schnell
     [not found] ` <4BBDA1CB.3070204@davidnewall.com>
2010-04-08  9:52   ` Michael Schnell
2010-04-12 12:54     ` Pavel Machek
2010-04-14  8:42       ` Michael Schnell
     [not found] ` <k2gbca41b4c1004080243nc45a10aereaae18557808c943@mail.gmail.com>
2010-04-08 10:12   ` Michael Schnell
2010-04-08 10:45 ` Alan Cox
2010-04-08 12:11   ` Michael Schnell
2010-04-08 12:14     ` David Miller
2010-04-08 12:30       ` Michael Schnell
2010-04-08 14:15         ` Arnd Bergmann
2010-04-09 10:54           ` Michael Schnell
     [not found]           ` <4BBEECC8.10005@lumino.de>
     [not found]             ` <201004091714.04990.arnd@arndb.de>
2010-04-12  9:58               ` Michael Schnell
2010-04-12 15:02                 ` Arnd Bergmann
2010-04-13 10:11                   ` Michael Schnell
     [not found]                 ` <u2j42b5547a1004120845x87d7f2f7wd4acea1144153dd6@mail.gmail.com>
2010-04-13  8:39                   ` [Nios2-dev] " Michael Schnell
2010-04-08 13:37     ` Alan Cox
2010-04-09 10:55       ` Michael Schnell
2010-04-09 11:54         ` Alan Cox
2010-04-09 12:53           ` Michael Schnell
2010-04-09 13:15             ` Alan Cox
2010-04-09 13:14               ` Michael Schnell
2010-04-09 13:32               ` Michael Schnell
2010-04-14 12:46       ` Michael Schnell [this message]
2010-04-14 12:57         ` Alan Cox
2010-04-14 14:38           ` Michael Schnell
2010-04-09  1:36 ` Mike Frysinger
2010-04-09  9:23   ` Michael Schnell

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