linux-kernel - Re: [PATCH] net: sched: don't disable bh when accessing action idr

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Date:   Fri, 18 May 2018 19:59:20 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Vlad Buslov <vladbu@...lanox.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Jiri Pirko <jiri@...nulli.us>,
        David Miller <davem@...emloft.net>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net: sched: don't disable bh when accessing action idr

On Fri, May 18, 2018 at 8:45 AM, Vlad Buslov <vladbu@...lanox.com> wrote:
> Underlying implementation of action map has changed and doesn't require
> disabling bh anymore. Replace all action idr spinlock usage with regular
> calls that do not disable bh.

Please explain explicitly why it is not required, don't let people
dig, this would save everyone's time.

Also, this should be targeted for net-next, right?

Thanks.