linux-kernel - Re: [REGRESSION] "add a disk_uevent helper" breaks booting Andorid w/ dynamic partitions

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Message-ID: <CALAqxLVtM0PKSen8eo_bud+NmBEamEJjK7qZTT49pTX5QtqvrA@mail.gmail.com>
Date:   Tue, 23 Feb 2021 14:39:36 -0800
From:   John Stultz <john.stultz@...aro.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Tejun Heo <tj@...nel.org>, Jens Axboe <axboe@...nel.dk>,
        David Anderson <dvander@...gle.com>,
        linux-block@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>,
        Todd Kjos <tkjos@...gle.com>,
        Amit Pundir <amit.pundir@...aro.org>,
        Alistair Delva <adelva@...gle.com>
Subject: Re: [REGRESSION] "add a disk_uevent helper" breaks booting Andorid w/
 dynamic partitions

On Mon, Feb 22, 2021 at 10:31 PM Christoph Hellwig <hch@....de> wrote:
>
> Please try the patch below:
>
> ---
> From 85943345b41ec04f5a9e92dfad85b0fb24e2d2eb Mon Sep 17 00:00:00 2001
> From: Christoph Hellwig <hch@....de>
> Date: Tue, 23 Feb 2021 07:28:22 +0100
> Subject: block: don't skip empty device in in disk_uevent
>
> Restore the previous behavior by using the correct flag for the whole device
> ("part0").
>
> Fixes: 99dfc43ecbf6 ("block: use ->bi_bdev for bio based I/O accounting")
> Reported-by: John Stultz <john.stultz@...aro.org>
> Signed-off-by: Christoph Hellwig <hch@....de>

Yes, this seems to fix the problem! Thank you so much!
Tested-by: John Stultz <john.stultz@...aro.org>