[ovs-dev] [PATCH net-next 4/4] net: Add Open vSwitch kernel components.

Jesse Gross jesse at nicira.com
Sat Nov 19 00:58:49 UTC 2011


On Fri, Nov 18, 2011 at 3:23 PM, Stephen Hemminger
<shemminger at vyatta.com> wrote:
> On Fri, 18 Nov 2011 15:12:18 -0800
> Jesse Gross <jesse at nicira.com> wrote:
>
>> +             write_seqcount_begin(&stats->seqlock);
>> +             stats->tx_packets++;
>> +             stats->tx_bytes += sent;
>> +             write_seqcount_end(&stats->seqlock);
>
> There is a u64_stats_sync set of macros for this. It has the
> advantage of becoming a NOP on 64 bit platforms.

The reason why I did it this way is it ties the packet and byte count together.



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