From: Lev Makhlis <mlev@despammed.com>
To: "Andi Kleen" <ak@muc.de>, "Michael Brown" <mebrown@michaels-house.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.4] add SMBIOS information to /proc/smbios -- UPDATED
Date: Sat, 1 May 2004 16:00:44 -0500 [thread overview]
Message-ID: <200405011700.44518.mlev@despammed.com> (raw)
> > -- This information is, in the very near future, _not_ going to be
> > static anymore. There will be systems that update the information in
> > dynamically during SMIs.
>
> That's fine - /dev/mem can handle that too. An user will have to
> poll for changes anyways, so having it it /proc does not have
> any advantages.
One problem is that /dev/mem access isn't atomic. You need to read
a pointer, then follow the pointer to read data. If the pointer changes
in the middle, you lose. That said, I don't see any mechanism that
helps avoid that in kernel, either.
next reply other threads:[~2004-05-01 21:00 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-01 21:00 Lev Makhlis [this message]
2004-05-01 21:20 ` [PATCH 2.4] add SMBIOS information to /proc/smbios -- UPDATED Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2004-05-03 23:49 Michael_E_Brown
[not found] <1QvX0-A4-29@gated-at.bofh.it>
2004-04-30 19:22 ` Andi Kleen
2004-05-01 3:30 ` Michael Brown
2004-05-01 3:43 ` Michael Brown
2004-05-01 15:01 ` Andi Kleen
2004-04-30 2:21 Michael Brown
2004-04-30 3:34 ` viro
2004-04-30 4:37 ` Michael Brown
2004-05-03 23:40 ` Marcelo Tosatti
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