From: Joe Jin <joe.jin@oracle.com>
To: boris.ostrovsky@oracle.com,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, xen-devel@lists.xenproject.org
Subject: [PATCH 1/1] xen-netfront: limit max queues number to online cpus
Date: Fri, 23 Oct 2015 08:50:51 +0800 [thread overview]
Message-ID: <5629846B.8000001@oracle.com> (raw)
Should not allocate queues number more than online cpus.
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David S. Miller <davem@davemloft.net>
---
drivers/net/xen-netfront.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index f821a97..1eebd4e 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -2137,7 +2137,7 @@ static int __init netif_init(void)
/* Allow as many queues as there are CPUs if user has not
* specified a value.
*/
- if (xennet_max_queues == 0)
+ if (xennet_max_queues == 0 || xennet_max_queues > num_online_cpus())
xennet_max_queues = num_online_cpus();
return xenbus_register_frontend(&netfront_driver);
--
1.7.1
next reply other threads:[~2015-10-23 0:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-23 0:50 Joe Jin [this message]
2015-10-23 7:19 ` [Xen-devel] [PATCH 1/1] xen-netfront: limit max queues number to online cpus Joe Jin
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