[ovs-git] Open vSwitch: datapath: Simplify datapath locking. (master)

dev at openvswitch.org dev at openvswitch.org
Fri Apr 12 23:12:52 UTC 2013


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- Log -----------------------------------------------------------------
commit cd2a59e99c8a94b15655e29a4dc100a0dc221568
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=cd2a59e99c8a94b15655e29a4dc100a0dc221568
Author: Pravin B Shelar <pshelar at nicira.com>
		
datapath: Simplify datapath locking.
		
Currently OVS uses combination of genl and rtnl lock to protect
datapath state.  This was done due to networking stack locking.
But this has complicated locking and there are few lock ordering
issues with new tunneling protocols.
Following patch simplifies locking by introducing new ovs mutex
and now this lock is used to protect entire ovs state.

Signed-off-by: Pravin B Shelar <pshelar at nicira.com>
Acked-by: Jesse Gross <jesse at nicira.com>


commit 55a6ee411eededa4969a05233ced3ed69580c157
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=55a6ee411eededa4969a05233ced3ed69580c157
Author: Pravin B Shelar <pshelar at nicira.com>
		
datapath: Add workqueue API to ovs compat workqueue.
		
Add work-queue api which are required for next commit.

Signed-off-by: Pravin B Shelar <pshelar at nicira.com>
Acked-by: Jesse Gross <jesse at nicira.com>


-----------------------------------------------------------------------

Summary of changes:
 datapath/Modules.mk                             |    2 -
 datapath/datapath.c                             |  286 ++++++++++++++---------
 datapath/datapath.h                             |   26 ++-
 datapath/dp_notify.c                            |   82 +++++--
 datapath/genl_exec.c                            |  147 ------------
 datapath/genl_exec.h                            |   27 ---
 datapath/linux/Modules.mk                       |    1 -
 datapath/linux/compat/include/linux/genetlink.h |   23 --
 datapath/linux/compat/include/linux/workqueue.h |    2 +
 datapath/linux/compat/workqueue.c               |   29 ++-
 datapath/vport-gre.c                            |    4 +-
 datapath/vport-internal_dev.c                   |    6 +
 datapath/vport-netdev.c                         |    8 +-
 datapath/vport.c                                |   27 +--
 datapath/vport.h                                |    4 +-
 15 files changed, 297 insertions(+), 377 deletions(-)
 delete mode 100644 datapath/genl_exec.c
 delete mode 100644 datapath/genl_exec.h
 delete mode 100644 datapath/linux/compat/include/linux/genetlink.h


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