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From: hch@lst.de (Christoph Hellwig)
Subject: [PATCH 4/7] nvme: implement multipath access to nvme subsystems
Date: Fri, 10 Nov 2017 05:52:36 +0100	[thread overview]
Message-ID: <20171110045236.GA32408@lst.de> (raw)
In-Reply-To: <20171109212111.GA1718@localhost.localdomain>

> If we've CMIC capabilities, we'll use the subsys->instance; if we don't
> have CMIC, we use the ctrl->instance. 
> 
> Since the two instances are independent of each other, they can create
> duplicate names.
> 
> To fix, I think we'll need to always use the subsys instance for
> consistency if CONFIG_NVME_MULTIPATH=y.

Yes, we should.  But once we do that we should just always use
subsys->instance, as it will always be the same as ctrl->instance
for CONFIG_NVME_MULTIPATH=n.

  reply	other threads:[~2017-11-10  4:52 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-09 17:44 nvme multipath support V7 Christoph Hellwig
2017-11-09 17:44 ` [PATCH 1/7] nvme: track subsystems Christoph Hellwig
2017-11-09 20:23   ` Martin K. Petersen
2017-11-09 17:44 ` [PATCH 2/7] nvme: introduce a nvme_ns_ids structure Christoph Hellwig
2017-11-09 20:25   ` Martin K. Petersen
2017-11-09 17:44 ` [PATCH 3/7] nvme: track shared namespaces Christoph Hellwig
2017-11-09 20:28   ` Martin K. Petersen
2017-11-09 17:44 ` [PATCH 4/7] nvme: implement multipath access to nvme subsystems Christoph Hellwig
2017-11-09 18:17   ` Keith Busch
2017-11-09 20:32   ` Martin K. Petersen
2017-11-09 21:21   ` Keith Busch
2017-11-10  4:52     ` Christoph Hellwig [this message]
2017-11-10  5:07       ` Christoph Hellwig
2017-11-09 21:22   ` Mike Snitzer
2017-11-10  4:54     ` Christoph Hellwig
2017-11-10  7:27   ` Hannes Reinecke
2017-11-09 17:44 ` [PATCH 5/7] nvme: also expose the namespace identification sysfs files for mpath nodes Christoph Hellwig
2017-11-09 20:33   ` Martin K. Petersen
2017-11-10  8:21   ` Hannes Reinecke
2017-11-09 17:44 ` [PATCH 6/7] block: create 'slaves' and 'holders' entries for hidden gendisks Christoph Hellwig
2017-11-09 20:34   ` Martin K. Petersen
2017-11-09 17:44 ` [PATCH 7/7] nvme: create 'slaves' and 'holders' entries for hidden controllers Christoph Hellwig
2017-11-09 20:34   ` Martin K. Petersen
2017-11-10  8:44 ` nvme multipath support V7 Christoph Hellwig
2018-04-10 19:32 ` Gruher, Joseph R

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