linux-kernel - Re: [PATCH v2] nohz: prevent tilegx network driver interrupts

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Date:	Fri, 10 Jul 2015 18:12:58 -0500
From:	Josh Cartwright <joshc@...com>
To:	Chris Metcalf <cmetcalf@...hip.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] nohz: prevent tilegx network driver interrupts

On Fri, Jul 10, 2015 at 07:06:23PM -0400, Chris Metcalf wrote:
> On 7/10/2015 6:45 PM, Josh Cartwright wrote:
> >>+static inline const struct cpumask *housekeeping_cpumask(void)
> >>>+{
> >>>+#ifdef CONFIG_NO_HZ_FULL
> >>>+	if (tick_nohz_full_enabled())
> >>>+		return housekeeping_mask;
> >>>+#endif
> >Just a small comment:
> >
> >We can take these checks out from under a #ifdef CONFIG_NO_HZ_FULL
> >check, given that are stubbed tick_nohz_full_enabled() defined above.
> 
> True for the "if" clause, but the "housekeeping_mask" variable is only defined
> under CONFIG_NO_HZ_FULL.

Indeed!  I should have read more carefully.

Sorry for the noise.

  Josh

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