forked from luck/tmp_suning_uos_patched
92eb1d4771
Currently, each time a device is detached from an OVS datapath we call synchronize RCU before freeing associated data structures. However, if a bridge is deleted (which detaches all ports) when many devices are connected then there can be a long delay. This switches to use call_rcu() to group the cost together. Reported-by: Justin Pettit <jpettit@nicira.com> Signed-off-by: Jesse Gross <jesse@nicira.com>
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/*
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* Copyright (c) 2007-2011 Nicira, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#ifndef VPORT_NETDEV_H
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#define VPORT_NETDEV_H 1
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#include <linux/netdevice.h>
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#include <linux/rcupdate.h>
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#include "vport.h"
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struct vport *ovs_netdev_get_vport(struct net_device *dev);
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struct netdev_vport {
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struct rcu_head rcu;
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struct net_device *dev;
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};
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static inline struct netdev_vport *
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netdev_vport_priv(const struct vport *vport)
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{
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return vport_priv(vport);
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}
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const char *ovs_netdev_get_name(const struct vport *);
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const char *ovs_netdev_get_config(const struct vport *);
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int ovs_netdev_get_ifindex(const struct vport *);
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#endif /* vport_netdev.h */
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