From: William Lee Irwin III <wli@holomorphy.com>
To: Keith Owens <kaos@sgi.com>
Cc: Paul Jackson <pj@sgi.com>,
colpatch@us.ibm.com, linux-kernel@vger.kernel.org,
mbligh@aracnet.com, akpm@osdl.org, haveblue@us.ibm.com
Subject: Re: [PATCH] nodemask_t x86_64 changes [5/7]
Date: Sun, 28 Mar 2004 21:38:47 -0800 [thread overview]
Message-ID: <20040329053847.GJ791@holomorphy.com> (raw)
In-Reply-To: <4865.1080536926@kao2.melbourne.sgi.com>
On Mon, Mar 29, 2004 at 03:08:46PM +1000, Keith Owens wrote:
> For big endian, ~0UL << NR_CPUS_UNDEF is right. For little endian, it
> depends on how you represent an incomplete bit map. Is it represented
> as a pure bit string, i.e. as if the arch were big endian? Or is it
> represented as a mapping onto the bytes of the underlying long?
Bitmaps are represented in Linux in such manners as befit wrong
(little) endian machines. I suggest shifting in the opposite direction.
-- wli
next prev parent reply other threads:[~2004-03-29 5:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-18 23:04 [PATCH] nodemask_t x86_64 changes [5/7] Matthew Dobson
2004-03-23 7:08 ` Paul Jackson
2004-03-23 10:13 ` William Lee Irwin III
2004-03-23 21:36 ` Paul Jackson
2004-03-24 2:03 ` William Lee Irwin III
2004-03-24 4:11 ` Paul Jackson
2004-03-24 4:37 ` William Lee Irwin III
2004-03-26 5:06 ` Keith Owens
2004-03-26 7:14 ` Paul Jackson
2004-03-29 5:08 ` Keith Owens
2004-03-29 5:14 ` Paul Jackson
2004-03-29 5:38 ` William Lee Irwin III [this message]
2004-03-26 11:57 ` William Lee Irwin III
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