linux-kernel - Re: [Patch 7/7] infiniband: ehca: Use hotplug thread infrastructure

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Message-ID: <87y5mjw7t9.fsf@rustcorp.com.au>
Date:	Tue, 17 Jul 2012 09:57:30 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [Patch 7/7] infiniband: ehca: Use hotplug thread infrastructure

On Mon, 16 Jul 2012 10:42:39 -0000, Thomas Gleixner <tglx@...utronix.de> wrote:
> +	while (1) {
> +		cpu = cpumask_next(pool->last_cpu, cpu_online_mask);
> +		if (cpu >= nr_cpu_ids)
> +			cpu = cpumask_first(cpu_online_mask);
> +		pool->last_cpu = cpu;
> +		/* Might be on the way out */
> +		if (per_cpu_ptr(pool->cpu_comp_tasks, cpu)->active)
> +			break;
> +	}

I always look twice at while(1) loops; I'm sure there's a do-while
hiding in there.

Overall, the patch series looks like a very nice cleanup.

Thanks!
Rusty.
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