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From: Keith Whitwell <keith@tungstengraphics.com>
To: linux-kernel@vger.kernel.org
Subject: Re: linux-2.5.18: DRM + cmpxchg issues
Date: Tue, 28 May 2002 09:13:04 +0100	[thread overview]
Message-ID: <3CF33C10.1090302@tungstengraphics.com> (raw)

Adam,

I expect the answer is that we need to dig out the old one.

Previously I don't think the full cmpxchg semantics werere required unless the 
box is smp -- there's no case where atomic operations are required for 
hardware interaction, for example.  ...

Probably this changed with preempt, though, so we need one even on UP boxes...

Keith


             reply	other threads:[~2002-05-28  8:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-05-28  8:13 Keith Whitwell [this message]
2002-05-29  0:59 ` linux-2.5.18: DRM + cmpxchg issues george anzinger
2002-05-29  7:23   ` Keith Whitwell
  -- strict thread matches above, loose matches on Subject: below --
2002-05-26  8:32 Adam J. Richter

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