linux-kernel - Re: [PATCH 4/9] nvme-pci: quiesce IO queues prior to disabling device HMB accesses

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Date:   Sun, 11 Feb 2018 13:19:15 +0200
From:   Sagi Grimberg <sagi@...mberg.me>
To:     Jianchao Wang <jianchao.w.wang@...cle.com>, keith.busch@...el.com,
        axboe@...com, hch@....de
Cc:     linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/9] nvme-pci: quiesce IO queues prior to disabling device
 HMB accesses


> diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
> index 6fe7af0..00cffed 100644
> --- a/drivers/nvme/host/pci.c
> +++ b/drivers/nvme/host/pci.c
> @@ -2186,7 +2186,10 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
>   	if (!dead) {
>   		if (shutdown)
>   			nvme_wait_freeze_timeout(&dev->ctrl, NVME_IO_TIMEOUT);
> +	}
> +	nvme_stop_queues(&dev->ctrl);

Nit, extra newline before nvme_stop_queues would be nice.

Other than that, looks good,

Reviewed-by: Sagi Grimberg <sagi@...mberg.me>