Commit 9b996e54 authored by Pravin B Shelar's avatar Pravin B Shelar

openvswitch: Move table destroy to dp-rcu callback.

Ths simplifies flow-table-destroy API. No need to pass explicit
parameter about context.
Signed-off-by: default avatarPravin B Shelar <pshelar@nicira.com>
Acked-by: default avatarThomas Graf <tgraf@redhat.com>
parent 25cd9ba0
......@@ -187,6 +187,7 @@ static void destroy_dp_rcu(struct rcu_head *rcu)
{
struct datapath *dp = container_of(rcu, struct datapath, rcu);
ovs_flow_tbl_destroy(&dp->table);
free_percpu(dp->stats_percpu);
release_net(ovs_dp_get_net(dp));
kfree(dp->ports);
......@@ -1444,7 +1445,7 @@ err_destroy_ports_array:
err_destroy_percpu:
free_percpu(dp->stats_percpu);
err_destroy_table:
ovs_flow_tbl_destroy(&dp->table, false);
ovs_flow_tbl_destroy(&dp->table);
err_free_dp:
release_net(ovs_dp_get_net(dp));
kfree(dp);
......@@ -1476,8 +1477,6 @@ static void __dp_destroy(struct datapath *dp)
ovs_dp_detach_port(ovs_vport_ovsl(dp, OVSP_LOCAL));
/* RCU destroy the flow table */
ovs_flow_tbl_destroy(&dp->table, true);
call_rcu(&dp->rcu, destroy_dp_rcu);
}
......
/*
* Copyright (c) 2007-2013 Nicira, Inc.
* Copyright (c) 2007-2014 Nicira, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
......@@ -250,11 +250,14 @@ skip_flows:
__table_instance_destroy(ti);
}
void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred)
/* No need for locking this function is called from RCU callback or
* error path.
*/
void ovs_flow_tbl_destroy(struct flow_table *table)
{
struct table_instance *ti = ovsl_dereference(table->ti);
struct table_instance *ti = rcu_dereference_raw(table->ti);
table_instance_destroy(ti, deferred);
table_instance_destroy(ti, false);
}
struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *ti,
......
......@@ -62,7 +62,7 @@ void ovs_flow_free(struct sw_flow *, bool deferred);
int ovs_flow_tbl_init(struct flow_table *);
int ovs_flow_tbl_count(struct flow_table *table);
void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred);
void ovs_flow_tbl_destroy(struct flow_table *table);
int ovs_flow_tbl_flush(struct flow_table *flow_table);
int ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow,
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment