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From: Christoph Hellwig <hch@infradead.org>
To: Keith Busch <kbusch@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
	Chaitanya Kulkarni <chaitanyak@nvidia.com>,
	"alan.adamson@oracle.com" <alan.adamson@oracle.com>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>
Subject: Re: Issue with AWUPF when using multiple controllers in a subsystem
Date: Thu, 10 Apr 2025 02:17:58 -0700	[thread overview]
Message-ID: <Z_eMxjUjUW2JJzH-@infradead.org> (raw)
In-Reply-To: <Z_eKSrfAsjT94hZD@kbusch-mbp>

On Thu, Apr 10, 2025 at 10:07:22AM +0100, Keith Busch wrote:
> You'll get different results depending on the non-deterministic order we
> enumerate. Can't we just change the stacked limit to the smallest
> observed value as we go?

That means discovering a new controller could lower the limit while
a file system is using it.  Not a good idea.  That's why I suggested
only supporting the namespace variant ASAP until we actually grow
users relying on it.


      reply	other threads:[~2025-04-10 11:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-04 22:42 Issue with AWUPF when using multiple controllers in a subsystem alan.adamson
2025-04-08 21:08 ` Chaitanya Kulkarni
2025-04-09  9:01   ` Christoph Hellwig
2025-04-10  9:09     ` John Garry
2025-04-10  9:19       ` Christoph Hellwig
2025-04-10 10:11         ` John Garry
2025-04-08 21:08 ` Chaitanya Kulkarni
2025-04-09  9:05 ` Christoph Hellwig
2025-04-10  1:33   ` Chaitanya Kulkarni
2025-04-10  8:32     ` Christoph Hellwig
2025-04-10  9:07       ` Keith Busch
2025-04-10  9:17         ` Christoph Hellwig [this message]

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