From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 19 May 2011 12:24:16 +0000 (+0000)
Subject: macvlan: remove one synchronize_rcu() call
X-Git-Tag: v3.0-rc1~377^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=449f4544267e73d5db372971da63634707c32299;p=pandora-kernel.git

macvlan: remove one synchronize_rcu() call

When one macvlan device is dismantled, we can avoid one
synchronize_rcu() call done after deletion from hash list, since caller
will perform a synchronize_net() call after its ndo_stop() call.

Add a new netdev->dismantle field to signal this dismantle intent.

Reduces RTNL hold time.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Patrick McHardy <kaber@trash.net>
CC: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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