[ovs-git] Open vSwitch: datapath: Use RCU callback when detaching netdevices. (master)

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- Log -----------------------------------------------------------------
commit e65361d6b6fa0c3fb383b37cd259a24846ded7d5
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=e65361d6b6fa0c3fb383b37cd259a24846ded7d5
Author: Jesse Gross <jesse at nicira.com>
		
datapath: Use RCU callback when detaching netdevices.
		
Currently, each time a device is detached from an OVS datapath
we call synchronize RCU before freeing associated data structures.
However, if a bridge is deleted (which detaches all ports) when
many devices are connected then there can be a long delay.  This
switches to use call_rcu() to group the cost together.

Reported-by: Justin Pettit <jpettit at nicira.com>
Signed-off-by: Jesse Gross <jesse at nicira.com>


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Summary of changes:
 datapath/vport-netdev.c |   14 ++++++++++----
 datapath/vport-netdev.h |    3 +++
 2 files changed, 13 insertions(+), 4 deletions(-)


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