linux-kernel - Re: [PATCH v8 1/2] nvme-multipath: prepare for "queue-depth" iopolicy

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Date: Wed, 26 Jun 2024 07:05:48 +0200
From: Christoph Hellwig <hch@....de>
To: John Meneghini <jmeneghi@...hat.com>
Cc: kbusch@...nel.org, hch@....de, sagi@...mberg.me,
	linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
	emilne@...hat.com, jrani@...estorage.com, randyj@...estorage.com,
	chaitanyak@...dia.com, hare@...nel.org
Subject: Re: [PATCH v8 1/2] nvme-multipath: prepare for "queue-depth"
 iopolicy

On Tue, Jun 25, 2024 at 08:26:04AM -0400, John Meneghini wrote:
> +	struct nvme_ns *old = srcu_dereference(head->current_path[node], &head->srcu);

Please avoid the overly long line here.

> +inline struct nvme_ns *nvme_find_path(struct nvme_ns_head *head)
> +{
> +	if (READ_ONCE(head->subsys->iopolicy) == NVME_IOPOLICY_RR)
> +		return nvme_round_robin_path(head);
> +	else
> +		return nvme_numa_path(head);

No need for an else after a return.