From: Daniel Wagner <dwagner@suse.de>
To: linux-nvme@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, Hannes Reinecke <hare@suse.de>,
Sagi Grimberg <sagi@grimberg.me>
Subject: Re: [PATCH v3] nvme: revalidate paths during rescan
Date: Wed, 18 Aug 2021 14:44:54 +0200 [thread overview]
Message-ID: <20210818124454.vcfid2otecdprlsh@carbon.lan> (raw)
In-Reply-To: <20210811152803.30017-1-dwagner@suse.de>
On Wed, Aug 11, 2021 at 05:28:03PM +0200, Daniel Wagner wrote:
> From: Hannes Reinecke <hare@suse.de>
>
> When triggering a rescan due to a namespace resize we will be
> receiving AENs on every controller, triggering a rescan of all
> attached namespaces. If multipath is active only the current path and
> the ns_head disk will be updated, the other paths will still refer to
> the old size until AENs for the remaining controllers are received.
>
> If I/O comes in before that it might be routed to one of the old
> paths, triggering an I/O failure with 'access beyond end of device'.
> With this patch the old paths are skipped from multipath path
> selection until the controller serving these paths has been rescanned.
ping
next prev parent reply other threads:[~2021-08-18 12:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-11 15:28 [PATCH v3] nvme: revalidate paths during rescan Daniel Wagner
2021-08-18 12:44 ` Daniel Wagner [this message]
2021-08-23 8:00 ` Christoph Hellwig
2021-08-23 17:16 ` Sagi Grimberg
2021-08-24 13:44 ` Daniel Wagner
2021-08-24 13:48 ` Daniel Wagner
2021-08-24 14:00 ` Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210818124454.vcfid2otecdprlsh@carbon.lan \
--to=dwagner@suse.de \
--cc=hare@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=sagi@grimberg.me \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox