[Xen-changelog] [xen-unstable] [NET] back: Create 0 loopbacks by default for non-domain-0.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Node ID 8cffe84d8f51f74b64212c09cfaad1b73679ec55
# Parent  3dea280880e2244c3628b9bcfb75e40825b49de7
[NET] back: Create 0 loopbacks by default for non-domain-0.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 linux-2.6-xen-sparse/drivers/xen/netback/loopback.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff -r 3dea280880e2 -r 8cffe84d8f51 
linux-2.6-xen-sparse/drivers/xen/netback/loopback.c
--- a/linux-2.6-xen-sparse/drivers/xen/netback/loopback.c       Thu Sep 28 
12:46:09 2006 +0100
+++ b/linux-2.6-xen-sparse/drivers/xen/netback/loopback.c       Thu Sep 28 
13:20:58 2006 +0100
@@ -53,8 +53,9 @@
 #include <linux/skbuff.h>
 #include <linux/ethtool.h>
 #include <net/dst.h>
-
-static int nloopbacks = 8;
+#include <asm/hypervisor.h> /* is_initial_xendomain() */
+
+static int nloopbacks = -1;
 module_param(nloopbacks, int, 0);
 MODULE_PARM_DESC(nloopbacks, "Number of netback-loopback devices to create");
 
@@ -239,6 +240,9 @@ static int __init loopback_init(void)
 {
        int i, err = 0;
 
+       if (nloopbacks == -1)
+               nloopbacks = is_initial_xendomain() ? 8 : 0;
+
        for (i = 0; i < nloopbacks; i++)
                if ((err = make_loopback(i)) != 0)
                        break;

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