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xen-ppc-devel
[Xen-devel] Re: [RFC PATCH 28/33] Add Xen grant table support
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To: |
Hollis Blanchard <hollisb@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [RFC PATCH 28/33] Add Xen grant table support |
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From: |
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
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Date: |
Tue, 25 Jul 2006 19:45:51 +0100 |
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Cc: |
Andrew Morton <akpm@xxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Pratt <ian.pratt@xxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Chris Wright <chrisw@xxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxx, xen-ppc-devel <xen-ppc-devel@xxxxxxxxxxxxxxxxxxx> |
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Tue, 25 Jul 2006 11:46:24 -0700 |
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On 25 Jul 2006, at 19:30, Hollis Blanchard wrote:
I object to these uses of (synch_)cmpxchg on a uint16_t in common code.
Many architectures, including PowerPC, do not support 2-byte atomic
operations, but this code is common to all Xen architectures.
We'll use synch_cmpxchg_subword() in the next iteration of these
patches. It's already been applied to our main Xen repository but
hadn't been applied to our merge repo when these patches were created.
-- Keir
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