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Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction abstraction

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From: Jeremy Fitzhardinge <jeremy@...>
To: Linus Torvalds <torvalds@...>
Cc: Ingo Molnar <mingo@...>, <benh@...>, xen-devel <xen-devel@...>, Peter Zijlstra <a.p.zijlstra@...>, kvm-devel <kvm-devel@...>, <x86@...>, LKML <linux-kernel@...>, Virtualization Mailing List <virtualization@...>, Hugh Dickins <hugh@...>, Thomas Gleixner <tglx@...>
Subject: Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction abstraction
Date: Friday, June 20, 2008 - 4:16 pm

Linus Torvalds wrote:

Doesn't work, unfortunately:
{standard input}:20511: Error: Incorrect register `%eax' used with `b' 
suffix

        lock; orb %eax,1(%rdi)  # tmp64,

    J
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Messages in current thread:
[PATCH 0 of 4] mm+paravirt+xen: add pte read-modify-write ab..., Jeremy Fitzhardinge, (Mon Jun 16, 7:29 am)
[PATCH 2 of 4] paravirt: add hooks for ptep_modify_prot_star..., Jeremy Fitzhardinge, (Mon Jun 16, 7:30 am)
[PATCH 4 of 4] xen: add mechanism to extend existing multica..., Jeremy Fitzhardinge, (Mon Jun 16, 7:30 am)
[PATCH 3 of 4] xen: implement ptep_modify_prot_start/commit, Jeremy Fitzhardinge, (Mon Jun 16, 7:30 am)
[PATCH 1 of 4] mm: add a ptep_modify_prot transaction abstra..., Jeremy Fitzhardinge, (Mon Jun 16, 7:30 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Benjamin Herrenschmidt, (Wed Jun 18, 7:23 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Wed Jun 18, 7:59 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Wed Jun 18, 8:15 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Linus Torvalds, (Wed Jun 18, 8:24 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Benjamin Herrenschmidt, (Wed Jun 18, 8:39 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Thu Jun 19, 1:03 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Benjamin Herrenschmidt, (Thu Jun 19, 3:20 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Thu Jun 19, 1:57 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Wed Jun 18, 8:37 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Linus Torvalds, (Wed Jun 18, 8:49 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Linus Torvalds, (Thu Jun 19, 12:03 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Ingo Molnar, (Thu Jun 19, 7:58 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Linus Torvalds, (Thu Jun 19, 12:30 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Ingo Molnar, (Thu Jun 19, 12:47 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Ingo Molnar, (Fri Jun 20, 6:10 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Fri Jun 20, 3:06 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Linus Torvalds, (Fri Jun 20, 3:15 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Ingo Molnar, (Fri Jun 20, 3:56 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Fri Jun 20, 4:05 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Linus Torvalds, (Fri Jun 20, 4:03 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Fri Jun 20, 4:16 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Jeremy Fitzhardinge, (Fri Jun 20, 4:22 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Ingo Molnar, (Sat Jun 21, 2:06 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Akinobu Mita, (Thu Jun 19, 8:20 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Ingo Molnar, (Thu Jun 19, 8:03 am)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Linus Torvalds, (Mon Jun 16, 1:29 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Hugh Dickins, (Mon Jun 16, 2:13 pm)
Re: [PATCH 1 of 4] mm: add a ptep_modify_prot transaction ab..., Ingo Molnar, (Mon Jun 16, 2:49 pm)