Netback-Set-allocated-memory-to-zero-from-vmalloc.patch

From 595b10dfaad7653d7ce310ede5df686f6249b8b2 Mon Sep 17 00:00:00 2001
From: Dongxiao Xu <dongxiao.xu@intel.com>
Date: Thu, 10 Jun 2010 19:03:15 +0800
Subject: [PATCH] Netback: Set allocated memory to zero from vmalloc.

This should fix the windows/linux pv driver issue.

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
 drivers/xen/netback/netback.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/xen/netback/netback.c b/drivers/xen/netback/netback.c
index b23fab0..f76913d 100644
--- a/drivers/xen/netback/netback.c
+++ b/drivers/xen/netback/netback.c
@@ -1623,6 +1623,7 @@ static int __init netback_init(void)
 		printk(KERN_ALERT "%s: out of memory\n", __func__);
 		return -ENOMEM;
 	}
+	memset(xen_netbk, 0, sizeof(struct xen_netbk) * xen_netbk_group_nr);
 
 	/* We can increase reservation by this much in net_rx_action(). */
 //	balloon_update_driver_allowance(NET_RX_RING_SIZE);
-- 
1.5.6.5