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xen-netback: respect user provided max_queues
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 <johnny.strom@linuxsolutions.fi> Signed-off-by: Wei Liu <wei.liu2@citrix.com> Reviewed-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 5 additions and 2 deletions
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@ -2114,7 +2114,10 @@ static int __init netback_init(void)
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if (!xen_domain())
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return -ENODEV;
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/* Allow as many queues as there are CPUs, by default */
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/* Allow as many queues as there are CPUs if user has not
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* specified a value.
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*/
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if (xenvif_max_queues == 0)
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xenvif_max_queues = num_online_cpus();
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if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) {
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