From: Pankaj Gupta Date: Mon, 12 Jan 2015 06:11:29 +0000 (+0530) Subject: tuntap: Increase the number of queues in tun. X-Git-Tag: fixes-v4.0-rc1~150^2~245^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=baf71c5c1f80d82e92924050a60b5baaf97e3094;p=pandora-kernel.git tuntap: Increase the number of queues in tun. Networking under kvm works best if we allocate a per-vCPU RX and TX queue in a virtual NIC. This requires a per-vCPU queue on the host side. It is now safe to increase the maximum number of queues. Preceding patch: 'net: allow large number of rx queues' made sure this won't cause failures due to high order memory allocations. Increase it to 256: this is the max number of vCPUs KVM supports. Size of tun_struct changes from 8512 to 10496 after this patch. This keeps pages allocated for tun_struct before and after the patch to 3. Signed-off-by: Pankaj Gupta Reviewed-by: David Gibson Signed-off-by: David S. Miller --- Reading git-diff-tree failed