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From: Thomas Gleixner <tglx@linutronix.de>
To: Marc Zyngier <marc.zyngier@arm.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Ming Lei <ming.lei@redhat.com>, Christoph Hellwig <hch@lst.de>,
	Bjorn Helgaas <helgaas@kernel.org>, Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, Sagi Grimberg <sagi@grimberg.me>,
	linux-nvme@lists.infradead.org, linux-pci@vger.kernel.org,
	Keith Busch <keith.busch@intel.com>,
	Sumit Saxena <sumit.saxena@broadcom.com>,
	Kashyap Desai <kashyap.desai@broadcom.com>,
	Shivasharan Srikanteshwara 
	<shivasharan.srikanteshwara@broadcom.com>
Subject: Re: [patch V5 4/8] nvme-pci: Simplify interrupt allocation
Date: Fri, 15 Feb 2019 10:54:32 +0100 (CET)	[thread overview]
Message-ID: <alpine.DEB.2.21.1902151053520.1646@nanos.tec.linutronix.de> (raw)
In-Reply-To: <alpine.DEB.2.21.1902151051470.1646@nanos.tec.linutronix.de>

On Fri, 15 Feb 2019, Thomas Gleixner wrote:
> On Fri, 15 Feb 2019, Marc Zyngier wrote:
> > > +	 */
> > > +	if (nrirqs == 1)
> > > +		nr_read_queues = 0;
> > > +	else if (write_queues >= nrirqs)
> > > +		nr_read_queues = nrirqs - 1;
> > 
> > ... while this seem to ensure that we carve out one write queue out of
> > the irq set. It looks like a departure from the original code, which
> > would set nr_read_queues to 1 in that particular case.
> 
> Bah. right you are.

That needs to be:

     nr_read_queues = 1;

obviously.

/me blushes.

  reply	other threads:[~2019-02-15  9:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-14 20:47 [patch V5 0/8] genirq/affinity: Overhaul the multiple interrupt sets support Thomas Gleixner
2019-02-14 20:47 ` [patch V5 1/8] genirq/affinity: Code consolidation Thomas Gleixner
2019-02-14 20:47 ` [patch V5 2/8] genirq/affinity: Store interrupt sets size in struct irq_affinity Thomas Gleixner
2019-02-14 20:47 ` [patch V5 3/8] genirq/affinity: Add new callback for (re)calculating interrupt sets Thomas Gleixner
2019-02-14 20:47 ` [patch V5 4/8] nvme-pci: Simplify interrupt allocation Thomas Gleixner
2019-02-14 22:41   ` Ming Lei
2019-02-14 23:55     ` Thomas Gleixner
2019-02-15 23:00       ` Thomas Gleixner
2019-02-15  9:24   ` Marc Zyngier
2019-02-15  9:52     ` Thomas Gleixner
2019-02-15  9:54       ` Thomas Gleixner [this message]
2019-02-14 20:48 ` [patch V5 5/8] genirq/affinity: Remove the leftovers of the original set support Thomas Gleixner
2019-02-14 20:48 ` [patch V5 6/8] PCI/MSI: Remove obsolete sanity checks for multiple interrupt sets Thomas Gleixner
2019-02-14 20:48 ` [patch V5 7/8] genirq/affinity: Set is_managed in the spreading function Thomas Gleixner
2019-02-14 20:48 ` [patch V5 8/8] genirq/affinity: Add support for non-managed affinity sets Thomas Gleixner

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