[ovs-git] Open vSwitch: ofproto-dpif: Don't hold mac rwlock while calling send_packet(). (branch-2.0)

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- Log -----------------------------------------------------------------
commit 5542f936e769c02f72751cd1ac68ddc6de6feab1
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=5542f936e769c02f72751cd1ac68ddc6de6feab1
Author: Ethan Jackson <ethan at nicira.com>
		
ofproto-dpif: Don't hold mac rwlock while calling send_packet().
		
Holding the mac learning rwlock while calling send_packet() which
calls xlate_actions() is dangerous because somewhere deep in the chain
the same lock might be acquired causing a deadlock.  Though we haven't
run into this problem in testing, it seems prudent to refactor it.

Reported-by: Ben Pfaff <blp at nicira.com>
Signed-off-by: Ethan Jackson <ethan at nicira.com>
Acked-by: Ben Pfaff <blp at nicira.com>


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Summary of changes:
 ofproto/ofproto-dpif.c |   32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)


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