From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Michael Schnell <mschnell@lumino.de>
Cc: 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 13:57:04 +0100 [thread overview]
Message-ID: <20100414135704.3fc7b713@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <4BC5B915.6090803@lumino.de>
> > 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".
We have a lot of kernel code which is only usable on some architectures
and a few opt out of. The largest example of course being the mm layer
which is strictly for MMU equipped systems.
The important point is that you don't *have* to use futex to provide the
posix pthread lock primitives if they don't fit your platform.
next prev parent reply other threads:[~2010-04-14 12:53 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-08 7:32 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
2010-04-14 12:57 ` Alan Cox [this message]
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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