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)
commit3d407a80b62fc5891b41fe9045f23aba4437fc33
treebdc3ffa6f8ad278de357e289b585fcb683c52ebb
parentfb7589a162162223e6bb6422dde3fb1ce07d9a78
tun: Report whether the queue is attached or not

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>
drivers/net/tun.c