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xen-devel
[Xen-devel] Re: [PATCH 0 of 4] mm+paravirt+xen: add pte read-modify-writ
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To: |
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH 0 of 4] mm+paravirt+xen: add pte read-modify-write abstraction |
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From: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Date: |
Sat, 24 May 2008 21:44:25 +0100 |
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Cc: |
Zachary Amsden <zach@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>, kvm-devel <kvm-devel@xxxxxxxxxxxxxxxxxxxxx>, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Virtualization Mailing List <virtualization@xxxxxxxxxxxxxx>, Hugh Dickins <hugh@xxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx> |
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Sat, 24 May 2008 13:45:22 -0700 |
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<patchbomb.1211552448@localhost> <alpine.LFD.1.10.0805231133130.3081@xxxxxxxxxxxxxxxxxxxxxxxxxx> <48372C2F.1090704@xxxxxxxx> <alpine.LFD.1.10.0805241022210.3081@xxxxxxxxxxxxxxxxxxxxxxxxxx> |
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Linus Torvalds wrote:
On Fri, 23 May 2008, Jeremy Fitzhardinge wrote:
Well, you could use it to update the page and protection bits while preserving
the AD bits, but I don't think that's very useful.
It's not that it's not "very useful" - it's that it would be TOTALLY
WRONG.
Sorry, I was using ironic understatement. I meant "...while preserving
the AD bits, but I think that would be totally fucking stupid".
J
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