From: Keith Busch <kbusch@kernel.org>
To: Nilay Shroff <nilay@linux.ibm.com>
Cc: dwagner@suse.de, linux-nvme@lists.infradead.org, hch@lst.de,
sagi@grimberg.me, gjoyce@ibm.com, msmurthy@imap.linux.ibm.com,
axboe@fb.com
Subject: Re: [PATCH nvme-cli] nvme: warn about attaching a namespace to unknown controller
Date: Fri, 21 Jun 2024 09:08:35 -0600 [thread overview]
Message-ID: <ZnWXc8wrNR_ijnTH@kbusch-mbp> (raw)
In-Reply-To: <20240620125604.3017138-1-nilay@linux.ibm.com>
On Thu, Jun 20, 2024 at 06:25:45PM +0530, Nilay Shroff wrote:
> Sometime it's possible for a multi-controller NVMe disk to have only
> one of its controller discovered by the kernel. And if this happens
> then it's also possible for a user to create and then attach a namespace
> to a controller which has not been discovered by the kernel. In such a
> case the attached namespace can't be used for IO because there's no path
> to reach such namespace from the kernel.
Isn't that a pretty normal thing to do, though? Like for an sriov
situation, a primary controller attaches namespaces to secondaries, but
not to itself.
next prev parent reply other threads:[~2024-06-21 15:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-20 12:55 [PATCH nvme-cli] nvme: warn about attaching a namespace to unknown controller Nilay Shroff
2024-06-21 15:08 ` Keith Busch [this message]
2024-06-22 10:35 ` Nilay Shroff
2024-06-24 19:32 ` Keith Busch
2024-06-25 6:23 ` Nilay Shroff
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