From: Hans Rosenfeld <hans.rosenfeld@amd.com>
To: Dave Hansen <haveblue@us.ibm.com>
Cc: Matt Mackall <mpm@selenic.com>,
linux-kernel@vger.kernel.org, Adam Litke <aglitke@gmail.com>,
nacc <nacc@linux.vnet.ibm.com>,
Jon Tollefson <kniht@linux.vnet.ibm.com>,
Adam Litke <agl@linux.vnet.ibm.com>
Subject: Re: [RFC][PATCH] make /proc/pid/pagemap work with huge pages and return page size
Date: Wed, 5 Mar 2008 18:22:43 +0100 [thread overview]
Message-ID: <20080305172243.GB27109@escobedo.amd.com> (raw)
In-Reply-To: <1204734766.23655.32.camel@nimitz.home.sr71.net>
On Wed, Mar 05, 2008 at 08:32:46AM -0800, Dave Hansen wrote:
> Were you able to find any other instances of these bitfields being used
> for kernel<->user communication?
I did not look at that.
> I thought you were going to check to
> see if we could depend on the layout, or if it changed between
> compilers.
But I looked at the ABI specification for i386, powerpc and sparc, where
the layout is defined for those architectures. Therefore I assume that
we can depend on the bitfield layout, as long as we use compilers that
adhere to the ABI specification of an architecture.
--
%SYSTEM-F-ANARCHISM, The operating system has been overthrown
next prev parent reply other threads:[~2008-03-05 17:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-20 13:57 Hans Rosenfeld
2008-02-23 2:18 ` Matt Mackall
2008-02-23 18:31 ` Dave Hansen
2008-02-25 12:09 ` Hans Rosenfeld
2008-02-25 18:39 ` Dave Hansen
2008-02-26 20:25 ` Hans Rosenfeld
2008-02-27 17:44 ` Dave Hansen
2008-02-28 12:00 ` Hans Rosenfeld
2008-02-29 0:49 ` Dave Hansen
2008-02-29 1:15 ` Matt Mackall
2008-02-29 22:30 ` Dave Hansen
2008-02-29 22:46 ` Matt Mackall
2008-03-05 16:00 ` Hans Rosenfeld
2008-03-05 16:32 ` Dave Hansen
2008-03-05 17:22 ` Hans Rosenfeld [this message]
2008-02-23 8:06 ` Andrew Morton
2008-02-23 15:25 ` Matt Mackall
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