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From: Christoph Hellwig <hch@lst.de>
To: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
	Keith Busch <keith.busch@wdc.com>,
	linux-nvme@lists.infradead.org
Subject: Re: [PATCHv3] nvme: allow to re-attach namespaces after all paths are down
Date: Tue, 11 May 2021 18:26:11 +0200	[thread overview]
Message-ID: <20210511162611.GA17617@lst.de> (raw)
In-Reply-To: <20210511075919.139624-1-hare@suse.de>

>  	} else {
>  		ret = -EINVAL;
> +		/*
> +		 * If multipath is enabled we might hit an ns head with no
> +		 * paths, but that doesn't indicate it's a shared namespace.
> +		 */
> +		if (nvme_ns_head_multipath(head) &&
> +		    list_empty(&head->list))
> +			goto check_ids;
>  		if (!is_shared || !head->shared) {
>  			dev_err(ctrl->device,
>  				"Duplicate unshared namespace %d\n", nsid);
>  			goto out_put_ns_head;
>  		}
> +check_ids:

I think this should simply be:

		if (!list_empty(&head->list) && (!is_shared || !head->shared)) {
 			dev_err(ctrl->device,
  				"Duplicate unshared namespace %d\n", nsid);
  			goto out_put_ns_head;
  		}

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  reply	other threads:[~2021-05-11 16:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-11  7:59 [PATCHv3] nvme: allow to re-attach namespaces after all paths are down Hannes Reinecke
2021-05-11 16:26 ` Christoph Hellwig [this message]
2021-05-12  5:28   ` Hannes Reinecke

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