From: Hannes Reinecke <hare@suse.de>
To: Keith Busch <kbusch@kernel.org>, Sagi Grimberg <sagi@grimberg.me>,
linux-nvme@lists.infradead.org, Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@fb.com>, Hannes Reinecke <hare@suse.com>,
Logan Gunthorpe <logang@deltatee.com>,
linux-kernel@vger.kernel.org,
"Martin K . Petersen" <martin.petersen@oracle.com>
Subject: Re: [PATCHv2] nvme: Assign subsy instance from first ctrl
Date: Mon, 9 Sep 2019 12:32:43 +0200 [thread overview]
Message-ID: <27980172-c302-ad17-791b-c8ffa80066f4@suse.de> (raw)
In-Reply-To: <20190905163354.25139-1-kbusch@kernel.org>
On 9/5/19 6:33 PM, Keith Busch wrote:
> The namespace disk names must be unique for the lifetime of the
> subsystem. This was accomplished by using their parent subsystems'
> instances which were allocated independently from the controllers
> connected to that subsystem. This allowed name prefixes assigned to
> namespaces to match a controller from an unrelated subsystem, and has
> created confusion among users examining device nodes.
>
> Ensure a namespace's subsystem instance never clashes with a controller
> instance of another subsystem by transferring the instance ownership
> to the parent subsystem from the first controller discovered in that
> subsystem.
>
> Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
> Signed-off-by: Keith Busch <kbusch@kernel.org>
> ---
> v1 -> v2:
>
> Changelog: reduce sensationalism, fix spelling
>
> drivers/nvme/host/core.c | 21 ++++++++++-----------
> 1 file changed, 10 insertions(+), 11 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@suse.de +49 911 74053 688
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 247165 (AG München), GF: Felix Imendörffer
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prev parent reply other threads:[~2019-09-09 10:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-05 16:33 [PATCHv2] nvme: Assign subsy instance from first ctrl Keith Busch
2019-09-05 16:39 ` Christoph Hellwig
2019-09-05 20:05 ` Sagi Grimberg
[not found] ` <CGME20190905163547epcas5p185b3455e7f33cff005c48a0f25745bab@epcms2p7>
2019-09-07 6:13 ` Minwoo Im
2019-09-09 10:32 ` Hannes Reinecke [this message]
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