diff options
| author | Wei Liu <wei.liu2@citrix.com> | 2015-09-10 11:18:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-31 11:23:38 -0800 |
| commit | a1edfa789d1a7f111dffb142bacbc6f2aa9d2e29 (patch) | |
| tree | 38f3ffedfb5fda7ea36fe0967186aaa51036eb7e | |
| parent | 21edf40b5ccbdf48720758fe525f3cbc19c8a202 (diff) | |
xen-netfront: respect user provided max_queues
[ Upstream commit 32a844056fd43dda647e1c3c6b9983bdfa04d17d ]
Originally that parameter was always reset to num_online_cpus during
module initialisation, which renders it useless.
The fix is to only set max_queues to num_online_cpus when user has not
provided a value.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Tested-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/xen-netfront.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 52f081f4dfd5..2a01b685b3a0 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -2140,8 +2140,11 @@ static int __init netif_init(void) pr_info("Initialising Xen virtual ethernet driver\n"); - /* Allow as many queues as there are CPUs, by default */ - xennet_max_queues = num_online_cpus(); + /* Allow as many queues as there are CPUs if user has not + * specified a value. + */ + if (xennet_max_queues == 0) + xennet_max_queues = num_online_cpus(); return xenbus_register_frontend(&netfront_driver); } |