| To: | Stephen Hemminger <shemminger@xxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 2.6] (3/3) vlan - use RCU |
| From: | Ben Greear <greearb@xxxxxxxxxxxxxxx> |
| Date: | Tue, 03 Aug 2004 14:03:50 -0700 |
| Cc: | "David S. Miller" <davem@xxxxxxxxxx>, netdev@xxxxxxxxxxx |
| In-reply-to: | <20040803134346.341e5636@xxxxxxxxxxxxxxxxxxxxx> |
| Organization: | Candela Technologies |
| References: | <20040803105017.0774e1db@xxxxxxxxxxxxxxxxxxxxx> <410FD348.9040301@xxxxxxxxxxxxxxx> <20040803134346.341e5636@xxxxxxxxxxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113 |
Stephen Hemminger wrote: This patch makes VLAN use RCU for the group lookup and removes the group_lock. Since all operations that are done under group_lock already have the rtnetlink semaphore (RTNL), the group_lock is unnecessary. The result is the vlan code becomes basically lock free in the send/receive path. Looks good to me, but I'm fairly ignorant of RCU at this point. Will trust Stephen knows what he is doing :) Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com |
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