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| author | Pravin B Shelar <pshelar@nicira.com> | 2013-09-17 09:38:23 -0700 |
|---|---|---|
| committer | Jesse Gross <jesse@nicira.com> | 2013-09-17 09:38:23 -0700 |
| commit | e7f133290660d976da8cb20e9bc7310d0cd19341 (patch) | |
| tree | c4eb7687f7aeb2c20a3e23006d811a7495ca9ed4 /net/openvswitch/datapath.h | |
| parent | 272b98c6455f00884f0350f775c5342358ebb73f (diff) | |
| download | linux-e7f133290660d976da8cb20e9bc7310d0cd19341.tar.gz linux-e7f133290660d976da8cb20e9bc7310d0cd19341.tar.bz2 linux-e7f133290660d976da8cb20e9bc7310d0cd19341.zip | |
openvswitch: Move flow table rehashing to flow install.
Rehashing in ovs-workqueue can cause ovs-mutex lock contentions
in case of heavy flow setups where both needs ovs-mutex. So by
moving rehashing to flow-setup we can eliminate contention.
This also simplify ovs locking and reduces dependence on
workqueue.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'net/openvswitch/datapath.h')
| -rw-r--r-- | net/openvswitch/datapath.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h index 4d109c176ef3..2c15541f3b46 100644 --- a/net/openvswitch/datapath.h +++ b/net/openvswitch/datapath.h @@ -62,6 +62,7 @@ struct dp_stats_percpu { * ovs_mutex and RCU. * @stats_percpu: Per-CPU datapath statistics. * @net: Reference to net namespace. + * @last_rehash: Timestamp of last rehash. * * Context: See the comment on locking at the top of datapath.c for additional * locking information. @@ -83,6 +84,7 @@ struct datapath { /* Network namespace ref. */ struct net *net; #endif + unsigned long last_rehash; }; /** |