netdev - Re: [PATCH v2 net-next 04/14] net_sched: sch_choke: implement lockless choke

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Date: Thu, 18 Apr 2024 14:58:10 +0100
From: Simon Horman <horms@...nel.org>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S . Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Toke Høiland-Jørgensen <toke@...hat.com>,
	Cong Wang <xiyou.wangcong@...il.com>, Jiri Pirko <jiri@...nulli.us>,
	netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH v2 net-next 04/14] net_sched: sch_choke: implement
 lockless choke_dump()

On Thu, Apr 18, 2024 at 07:32:38AM +0000, Eric Dumazet wrote:
> Instead of relying on RTNL, choke_dump() can use READ_ONCE()
> annotations, paired with WRITE_ONCE() ones in choke_change().
> 
> v2: added a WRITE_ONCE(p->Scell_log, Scell_log)
>     per Simon feedback in V1
>     Removed the READ_ONCE(q->limit) in choke_enqueue()
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Simon Horman <horms@...nel.org>