Re: [RFC PATCH 12/13] net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mq

On 16-08-17 04:04 PM, Eric Dumazet wrote:

On Wed, 2016-08-17 at 12:38 -0700, John Fastabend wrote:

quoted

The sch_mq qdisc creates a sub-qdisc per tx queue which are then
called independently for enqueue and dequeue operations. However
statistics are aggregated and pushed up to the "master" qdisc.

This patch adds support for any of the sub-qdiscs to be per cpu
statistic qdiscs. To handle this case add a check when calculating
stats and aggregate the per cpu stats if needed.

Also exports __gnet_stats_copy_queue() to use as a helper function.

Looks like this patch should be happening earlier in the series ?

hmm yep patches 12 and 13 should come before 11 to avoid introducing
a bug and subsequently fixing them.