From: Vlad Yasevich <vyasevic@redhat.com>
To: Eric Dumazet <erdnetdev@gmail.com>
Cc: netdev@vger.kernel.org, shemminger@vyatta.com,
davem@davemloft.net, or.gerlitz@gmail.com, jhs@mojatatu.com,
mst@redhat.com
Subject: Re: [PATCH V2 01/12] bridge: Add vlan filtering infrastructure
Date: Tue, 18 Dec 2012 16:26:30 -0500 [thread overview]
Message-ID: <50D0DF86.9070801@redhat.com> (raw)
In-Reply-To: <1355865231.9380.119.camel@edumazet-glaptop>
On 12/18/2012 04:13 PM, Eric Dumazet wrote:
> On Tue, 2012-12-18 at 14:00 -0500, Vlad Yasevich wrote:
>
>> +static void br_vlan_destroy(struct net_bridge_vlan *vlan)
>> +{
>> + if (!bitmap_empty(vlan->port_bitmap, PORT_BITMAP_LEN)) {
>> + pr_err("Attempt to delete a VLAN %d from the bridge with "
>> + "non-empty port bitmap (%p)\n", vlan->vid, vlan);
>> + BUG();
>> + }
>> +
>> + hlist_del_rcu(&vlan->hlist);
>> + synchronize_net();
>> + kfree_rcu(vlan, rcu);
>> +}
>
> Not clear why you both use synchronize_net() and kfree_rcu()
>
I think this was a left-over from old code. I think this was
originally here to mimic del_nbp behavior, but I don't think
it's really needed as kfree_rcu should wait until all current
rcu section have completed.
-vlad
next prev parent reply other threads:[~2012-12-18 21:26 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-18 19:00 [PATCH V2 00/12] Add basic VLAN support to bridges Vlad Yasevich
2012-12-18 19:00 ` [PATCH V2 01/12] bridge: Add vlan filtering infrastructure Vlad Yasevich
2012-12-18 21:13 ` Eric Dumazet
2012-12-18 21:26 ` Vlad Yasevich [this message]
2012-12-18 19:00 ` [PATCH V2 02/12] bridge: Validate that vlan is permitted on ingress Vlad Yasevich
2012-12-18 19:00 ` [PATCH V2 03/12] bridge: Verify that a vlan is allowed to egress on give port Vlad Yasevich
2012-12-18 19:00 ` [PATCH V2 04/12] bridge: Cache vlan in the cb for faster egress lookup Vlad Yasevich
2012-12-18 19:00 ` [PATCH V2 05/12] bridge: Add vlan to unicast fdb entries Vlad Yasevich
2012-12-18 19:00 ` [PATCH V2 06/12] bridge: Add vlan id to multicast groups Vlad Yasevich
2012-12-18 19:00 ` [PATCH V2 07/12] bridge: Add netlink interface to configure vlans on bridge ports Vlad Yasevich
2012-12-18 19:00 ` [PATCH V2 08/12] bridge: Add vlan support to static neighbors Vlad Yasevich
2012-12-18 19:01 ` [PATCH V2 09/12] bridge: Add the ability to configure untagged vlans Vlad Yasevich
2012-12-18 23:01 ` Michael S. Tsirkin
2012-12-18 23:03 ` Vlad Yasevich
2012-12-18 23:10 ` Michael S. Tsirkin
2012-12-19 14:50 ` Vlad Yasevich
2012-12-18 23:04 ` Michael S. Tsirkin
2012-12-19 1:06 ` Vlad Yasevich
2012-12-18 19:01 ` [PATCH V2 10/12] bridge: Implement untagged vlan handling Vlad Yasevich
2012-12-18 19:01 ` [PATCH V2 11/12] bridge: Dump vlan information from a bridge port Vlad Yasevich
2012-12-18 19:01 ` [PATCH V2 12/12] bridge: Add vlan support for local fdb entries Vlad Yasevich
2012-12-18 22:32 ` [PATCH V2 00/12] Add basic VLAN support to bridges Jiri Pirko
2012-12-18 22:46 ` Vlad Yasevich
2012-12-19 8:27 ` Jiri Pirko
2012-12-19 16:25 ` Vlad Yasevich
2012-12-19 17:04 ` Thomas Graf
2012-12-19 17:11 ` Vlad Yasevich
2012-12-19 17:19 ` Jiri Pirko
2012-12-19 17:20 ` Thomas Graf
2012-12-19 8:10 ` Shmulik Ladkani
2012-12-19 14:13 ` Vlad Yasevich
2012-12-19 19:37 ` Shmulik Ladkani
2012-12-19 20:03 ` Vlad Yasevich
2012-12-19 22:59 ` Vlad Yasevich
2012-12-20 7:00 ` Shmulik Ladkani
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