linux-kernel - Re: [PATCH v2 0/6] block: add a sequence number to disks

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Message-ID: <CAFnufp3k7-8FGnFyqushBHq6-bf=b5D-sxOKT7dWx1VKW9hDTw@mail.gmail.com>
Date:   Tue, 8 Jun 2021 16:31:02 +0200
From:   Matteo Croce <mcroce@...ux.microsoft.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     linux-kernel@...r.kernel.org,
        Lennart Poettering <lennart@...ttering.net>,
        Luca Boccassi <bluca@...ian.org>, Jens Axboe <axboe@...nel.dk>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Damien Le Moal <damien.lemoal@....com>,
        Tejun Heo <tj@...nel.org>,
        Javier González <javier@...igon.com>,
        linux-block@...r.kernel.org, Niklas Cassel <niklas.cassel@....com>,
        Johannes Thumshirn <johannes.thumshirn@....com>,
        Hannes Reinecke <hare@...e.de>,
        Matthew Wilcox <willy@...radead.org>,
        linux-fsdevel@...r.kernel.org,
        JeffleXu <jefflexu@...ux.alibaba.com>
Subject: Re: [PATCH v2 0/6] block: add a sequence number to disks

On Thu, May 20, 2021 at 3:56 PM Matteo Croce <mcroce@...ux.microsoft.com> wrote:
>
> From: Matteo Croce <mcroce@...rosoft.com>
>
> With this series a monotonically increasing number is added to disks,
> precisely in the genhd struct, and it's exported in sysfs and uevent.
>
> This helps the userspace correlate events for devices that reuse the
> same device, like loop.
>
> The first patch is the core one, the 2..4 expose the information in
> different ways, the 5th increases the seqnum on media change and
> the last one increases the sequence number for loop devices upon
> attach, detach or reconfigure.
>
> If merged, this feature will immediately used by the userspace:
> https://github.com/systemd/systemd/issues/17469#issuecomment-762919781
>

Hi Christoph,

I just noticed that the series doesn't apply anymore. Before
refreshing it, I wish to know what are your opinion on this one, as
nobody expressed one on latest submission.

-- 
per aspera ad upstream