linux-kernel - Re: [PATCH 04/18] virtiofs: Check connected state for VQ

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Message-ID: <20190906104549.GL5900@stefanha-x1.localdomain>
Date:   Fri, 6 Sep 2019 11:45:49 +0100
From:   Stefan Hajnoczi <stefanha@...hat.com>
To:     Vivek Goyal <vgoyal@...hat.com>
Cc:     linux-fsdevel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, miklos@...redi.hu,
        linux-kernel@...r.kernel.org, virtio-fs@...hat.com,
        dgilbert@...hat.com, mst@...hat.com
Subject: Re: [PATCH 04/18] virtiofs: Check connected state for VQ_REQUEST
 queue as well

On Thu, Sep 05, 2019 at 03:48:45PM -0400, Vivek Goyal wrote:
> Right now we are checking ->connected state only for VQ_HIPRIO. Now we want
> to make use of this method for all queues. So check it for VQ_REQUEST as
> well.
> 
> This will be helpful if device has been removed and virtqueue is gone. In
> that case ->connected will be false and request can't be submitted anymore
> and user space will see error -ENOTCONN.
> 
> Signed-off-by: Vivek Goyal <vgoyal@...hat.com>
> ---
>  fs/fuse/virtio_fs.c | 6 ++++++
>  1 file changed, 6 insertions(+)

Reviewed-by: Stefan Hajnoczi <stefanha@...hat.com>

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