linux-kernel - Re: [RFC PATCH 00/30] softirq: Make softirqs soft-interruptible (+ per vector disablement)

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Message-ID: <20181016233704.7foq5jxvi5mn57jd@localhost>
Date:   Tue, 16 Oct 2018 16:37:04 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Jonathan Corbet <corbet@....net>
Cc:     Frederic Weisbecker <frederic@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        "David S . Miller" <davem@...emloft.net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
        Ingo Molnar <mingo@...nel.org>,
        Frederic Weisbecker <fweisbec@...il.com>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>
Subject: Re: [RFC PATCH 00/30] softirq: Make softirqs soft-interruptible (+
 per vector disablement)

On Tue, Oct 16, 2018 at 04:03:59PM -0600, Jonathan Corbet wrote:
> I have to ask a dumb question, though.  Might it not be better to add a
> new set of functions like:
> 
> 	local_softirq_disable(mask);
> 	spin_lock_softirq(lock, mask);
> 
> Then just define the existing functions to call the new ones with
> SOFTIRQ_ALL_MASK?  It would achieve something like the same result with
> far less churn and conflict potential; then individual call sites could be
> changed at leisure?

I was thinking the exact same thing...

Thanks,
Richard