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. Reported-by: Johnny Strom <[email protected]> Signed-off-by: Wei Liu <[email protected]> Reviewed-by: David Vrabel <[email protected]> Cc: Ian Campbell <[email protected]> --- Cc: Johnny Strom <[email protected]> --- drivers/net/xen-netback/netback.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 42569b9..f585c6a 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -2105,8 +2105,11 @@ static int __init netback_init(void) if (!xen_domain()) return -ENODEV; - /* Allow as many queues as there are CPUs, by default */ - xenvif_max_queues = num_online_cpus(); + /* Allow as many queues as there are CPUs if user has not + * specified a value. + */ + if (xenvif_max_queues == 0) + xenvif_max_queues = num_online_cpus(); if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) { pr_info("fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n", -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
