From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Tue, 19 Aug 2008 20:32:51 +0000 (-0700)
Subject: xen: clarify locking used when pinning a pagetable.
X-Git-Tag: v2.6.28-rc1~699^2^2~29
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=11ad93e59d114f4b218873f1c93261be725d2e22;p=pandora-kernel.git

xen: clarify locking used when pinning a pagetable.

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.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Xen-devel <xen-devel@lists.xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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