Re: [PATCH 1/2] tuntap: reduce memory using of queues

[David Miller]

From: Jason Wang <jasowang@xxxxxxxxxx>
Date: Wed, 23 Jan 2013 21:59:12 +0800

> A MAX_TAP_QUEUES(1024) queues of tuntap device is always allocated
> unconditionally even userspace only requires a single queue device. This is
> unnecessary and will lead a very high order of page allocation when has a high
> possibility to fail. Solving this by creating a one queue net device when
> userspace only use one queue and also reduce MAX_TAP_QUEUES to
> DEFAULT_MAX_NUM_RSS_QUEUES which can guarantee the success of
> the allocation.
> 
> Reported-by: Dirk Hohndel <dirk@xxxxxxxxxxx>
> Cc: Eric Dumazet <eric.dumazet@xxxxxxxxx>
> Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
> Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>

Applied.
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