From 0eecdd685a75ab7d258442ab9fb092892b3cb6e9 Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Wed, 28 Apr 2010 15:14:47 +0100
Subject: [PATCH] Fix detection of disk in IO events

When using -device syntax, the IO event will have a different
prefix, 'drive-' that needs to be skipped over before matching
against the libvirt disk alias

* src/qemu/qemu_driver.c: Skip QEMU_DRIVE_HOST_PREFIX in IO event
---
 src/qemu/qemu_driver.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 54c3f34953..c2902ac1dd 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -764,6 +764,9 @@ findDomainDiskByAlias(virDomainObjPtr vm,
 {
     int i;
 
+    if (STRPREFIX(alias, QEMU_DRIVE_HOST_PREFIX))
+        alias += strlen(QEMU_DRIVE_HOST_PREFIX);
+
     for (i = 0; i < vm->def->ndisks; i++) {
         virDomainDiskDefPtr disk;
 
-- 
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