linux-kernel - Re: [DRBD-user] [PATCH] xen-blkback: Switch to closed state after releasing the backing device

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Message-ID: <20180910161831.GG26705@gavran.carpriv.carnet.hr>
Date:   Mon, 10 Sep 2018 18:18:31 +0200
From:   Valentin Vidic <Valentin.Vidic@...Net.hr>
To:     Roger Pau Monné <roger.pau@...rix.com>
Cc:     drbd-user@...ts.linbit.com, Jens Axboe <axboe@...nel.dk>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux-block@...r.kernel.org, xen-devel@...ts.xenproject.org
Subject: Re: [DRBD-user] [PATCH] xen-blkback: Switch to closed state after
 releasing the backing device

On Mon, Sep 10, 2018 at 05:00:58PM +0200, Roger Pau Monné wrote:
> I can try to take a look at this and attempt to make sure the state is
> only changed to closed in blkback _after_ the device has been
> released, but it might take me a couple of days to get you a patch.

Thanks, I have two test nodes now where I can try different approaches.

> I'm afraid that other hotplug scripts will also have issues with such
> behavior, and we shouldn't force all users of hotplug scripts to add
> such workarounds.

True, iSCSI and other "network" disks might have similar problems.

-- 
Valentin