[ovs-git] Open vSwitch: ofproto-dpif-xlate: Fix mac learning deadlock. (master)

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- Log -----------------------------------------------------------------
commit d6d5bbc9e43f5b6ce28d1d8c0df06b7cc3cb6db9
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=d6d5bbc9e43f5b6ce28d1d8c0df06b7cc3cb6db9
Author: Ethan Jackson <ethan at nicira.com>
		
ofproto-dpif-xlate: Fix mac learning deadlock.
		
xlate_normal() held the mac_learning lock while calling
output_normal().  When running with patch ports, this could cause
xlate_actions() to be called again, possibly attempting to take a
write lock on the same learning table causing a deadlock.  This patch
solves the problem by holding the lock for a very brief period of
time.

Bug #19423.
Signed-off-by: Ethan Jackson <ethan at nicira.com>
Acked-by: Justin Pettit <jpettit at nicira.com>


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Summary of changes:
 ofproto/ofproto-dpif-xlate.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)


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