Re: [Patch v4 3/3] net: Restrict receive packets queuing to housekeeping CPUs

[David Miller]

From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Fri, 26 Jun 2020 13:14:01 +0200

> On Thu, Jun 25, 2020 at 06:34:43PM -0400, Nitesh Narayan Lal wrote:
>> From: Alex Belits <abelits@xxxxxxxxxxx>
>> 
>> With the existing implementation of store_rps_map(), packets are queued
>> in the receive path on the backlog queues of other CPUs irrespective of
>> whether they are isolated or not. This could add a latency overhead to
>> any RT workload that is running on the same CPU.
>> 
>> Ensure that store_rps_map() only uses available housekeeping CPUs for
>> storing the rps_map.
>> 
>> Signed-off-by: Alex Belits <abelits@xxxxxxxxxxx>
>> Signed-off-by: Nitesh Narayan Lal <nitesh@xxxxxxxxxx>
> 
> Dave, ACK if I route this?

No problem:

Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>