linux-kernel - Re: [PATCH] nvme-pci: assign separate irq vectors for adminq and ioq0

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Message-ID: <20180228155353.GB16002@localhost.localdomain>
Date:   Wed, 28 Feb 2018 08:53:53 -0700
From:   Keith Busch <keith.busch@...el.com>
To:     "jianchao.wang" <jianchao.w.wang@...cle.com>
Cc:     axboe@...com, linux-kernel@...r.kernel.org, hch@....de,
        linux-nvme@...ts.infradead.org, sagi@...mberg.me
Subject: Re: [PATCH] nvme-pci: assign separate irq vectors for adminq and ioq0

On Wed, Feb 28, 2018 at 11:46:20PM +0800, jianchao.wang wrote:
> 
> the irqbalance may migrate the adminq irq away from cpu0.

No, irqbalance can't touch managed IRQs. See irq_can_set_affinity_usr().