Re: [PATCH bpf-next 2/4] xsk: allow AF_XDP sockets to receive packets directly from a queue
From: Björn Töpel <hidden>
Date: 2019-10-08 08:48:25
Also in:
bpf, intel-wired-lan
On Tue, 8 Oct 2019 at 10:47, Björn Töpel [off-list ref] wrote:
[...]
The dependent-read-barrier in READ_ONCE? Another branch -- leave that to the branch-predictor already! ;-) No, you're right, performance impact here is interesting. I guess the same static_branch could be used here as well...
...and I think the READ_ONCE can be omitted.