Re: [PATCH] block: turn Oops into WARNING if bdi_register_dev fails.

From: Christoph Hellwig
Date: Mon Apr 27 2015 - 09:04:44 EST

On Mon, Apr 27, 2015 at 03:19:31PM +1000, NeilBrown wrote:
> add_disk() does not return an error status, but it can
> still fail if there are problems elsewhere.
> In particular a recent problem caused bdi_register_dev()
> to sometimes fail because the name was already in use.

I guess that's the best workaround for now, but we'll really need to tackle
the problem that add_disk can return errors proper eventually.
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