linux-kernel - Re: [PATCH] nvme: make controller 'state' sysfs attribute pollable

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Message-ID: <83264609-d5f9-8990-d79e-0b6eed1b2471@grimberg.me>
Date:   Mon, 25 Sep 2017 08:37:44 +0300
From:   Sagi Grimberg <sagi@...mberg.me>
To:     Johannes Thumshirn <jthumshirn@...e.de>,
        Christoph Hellwig <hch@....de>
Cc:     Keith Busch <keith.busch@...el.com>,
        Hannes Reinecke <hare@...e.de>,
        Linux NVMe Mailinglist <linux-nvme@...ts.infradead.org>,
        Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] nvme: make controller 'state' sysfs attribute pollable


> So why exposing it then in the first time? I know you don't want dm-mpath in
> NVMe (neither do I) but we have to have something until your patchset and ANA
> is merged. And with this patch it's trivial to build a path checker that just
> looks at the state attribute in sysfs.

Can't we just not use path-checkers for nvme (we already have one in
nvme)?