From: "Jan Beulich" <jbeulich@novell.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>,
xen-devel@lists.xensource.com, Dexuan Cui <dexuan.cui@intel.com>
Subject: Re: [PATCH] x86: add SSE-based copy_page()
Date: Thu, 20 Nov 2008 08:46:50 +0000 [thread overview]
Message-ID: <4925320A.76E4.0078.0@novell.com> (raw)
In-Reply-To: <C54A33EF.1F69E%keir.fraser@eu.citrix.com>
>>> Keir Fraser <keir.fraser@eu.citrix.com> 19.11.08 22:21 >>>
>Looking at c/s 18724 again also I wonder what fixmap_domain_page() was
>introduced for, rather than just using map_domain_page(). Is it an attempt
>to reduce global TLB shootdowns? It's not very clear nor very pretty and I'd
>rather just kill it and use map_domain_page().
Yes, this and avoiding the need to take another lock.
Jan
next prev parent reply other threads:[~2008-11-20 8:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-12 9:37 [PATCH] x86: add SSE-based copy_page() Jan Beulich
2008-11-12 14:51 ` Dan Magenheimer
2008-11-12 15:01 ` Jan Beulich
2008-11-12 17:17 ` Dan Magenheimer
2008-11-13 8:37 ` Jan Beulich
2008-11-13 23:41 ` Dan Magenheimer
2008-11-14 3:08 ` Cui, Dexuan
2008-11-14 14:10 ` Dan Magenheimer
2008-11-14 14:16 ` Keir Fraser
2008-11-19 20:24 ` Dan Magenheimer
2008-11-19 21:21 ` Keir Fraser
2008-11-20 8:46 ` Jan Beulich [this message]
2009-01-12 23:29 ` Dan Magenheimer
2009-01-13 8:13 ` Keir Fraser
2009-01-13 8:34 ` Jan Beulich
2009-01-13 8:27 ` Jan Beulich
-- strict thread matches above, loose matches on Subject: below --
2009-01-13 8:31 Jan Beulich
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