From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH 1/2] tuntap: reduce memory using of queues
Date: Wed, 23 Jan 2013 13:47:36 -0500 (EST)
Message-ID: <20130123.134736.1854102244959594689.davem@davemloft.net>
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From: Jason Wang <jasowang@redhat.com>
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@hohndel.org>
> Cc: Eric Dumazet <eric.dumazet@gmail.com>
> Cc: David Woodhouse <dwmw2@infradead.org>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Signed-off-by: Jason Wang <jasowang@redhat.com>

Applied.