tun: Report whether the queue is attached or not
authorPavel Emelyanov <xemul@parallels.com>
Wed, 21 Aug 2013 10:32:00 +0000 (14:32 +0400)
committerDavid S. Miller <davem@davemloft.net>
Wed, 21 Aug 2013 19:21:45 +0000 (12:21 -0700)
Multiqueue tun devices allow to attach and detach from its queues
while keeping the interface itself set on file.

Knowing this is critical for the checkpoint part of criu project.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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