From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Sat, 21 Aug 2010 01:57:53 +0000 (-0700)
Subject: xen: use percpu interrupts for IPIs and VIRQs
X-Git-Tag: v2.6.36-rc3~26^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aaca49642b92c8a57d3ca5029a5a94019c7af69f;p=pandora-kernel.git

xen: use percpu interrupts for IPIs and VIRQs

IPIs and VIRQs are inherently per-cpu event types, so treat them as such:
 - use a specific percpu irq_chip implementation, and
 - handle them with handle_percpu_irq

This makes the path for delivering these interrupts more efficient
(no masking/unmasking, no locks), and it avoid problems with attempts
to migrate them.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
---

Reading git-diff-tree failed