Re: [PATCH net-next] net: dsa: User per-cpu 64-bit statistics
- From
- Eric Dumazet <hidden>
- Date
- 2017-08-22 12:56:55
- Also in
- lkml
- Reply to
- Florian Fainelli, 2017-08-22
On Mon, 2017-08-21 at 17:10 -0700, Florian Fainelli wrote:
Well if we return 1 from atomic_inc_return() and the previous value was zero, of course we are going to be bugging here. The idea behind the patch I suppose is to make sure that we always get an odd number upon u64_stats_update_begin()/entry, and an even number upon u64_stats_update_end()/exit, right?
Yes, this is right.