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[Xen-devel] Re: [PATCH] xen: clarify locking used when pinning a pagetab

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: [Xen-devel] Re: [PATCH] xen: clarify locking used when pinning a pagetable.
From: Ingo Molnar <mingo@xxxxxxx>
Date: Wed, 20 Aug 2008 12:41:04 +0200
Cc: the arch/x86 maintainers <x86@xxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
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* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> Add some comments explaining the locking and pinning algorithm when 
> using split pte locks.  Also implement a minor optimisation of not 
> pinning the PTE when not using split pte locks.

applied these commits to tip/x86/xen:

 7708ad6: xen: add xen_ prefixes to make tracing with ftrace easier
 11ad93e: xen: clarify locking used when pinning a pagetable.
 63d3a75: x86/paravirt: add spin_lock_flags lock op
 6e83358: xen: clean up domain mode predicates



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