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

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Message-ID: <20180829092329.GY26705@gavran.carpriv.carnet.hr>
Date:   Wed, 29 Aug 2018 11:23:29 +0200
From:   Valentin Vidic <Valentin.Vidic@...Net.hr>
To:     Juergen Gross <jgross@...e.com>
Cc:     Roger Pau Monné <roger.pau@...rix.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Jens Axboe <axboe@...nel.dk>, xen-devel@...ts.xenproject.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH] xen-blkback: Switch to closed state after releasing the
 backing device

On Wed, Aug 29, 2018 at 10:43:48AM +0200, Juergen Gross wrote:
> I think this should be an action triggered by the frontend, not by dom0
> (xen tools will always set "online" to 0 when removing a device, AFAIK).
> 
> I'm not sure this is relevant, but I realized this behavior is changed
> by your patch.

Can't find any place in xen-blkfront.c (or the rest of the kernel) where
the "online" value gets set, so it seems xen tools in dom0 is the only
thing that modifies this Xenbus node?

-- 
Valentin