linux-kernel - Re: [PATCH v5 0/4] virtio-fs: shared file system for virtual machines

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Message-ID: <CAJfpeguWB_6M1kr0ORQCvLgk3EQKxHisk0bQ2Os++dysfuXKmw@mail.gmail.com>
Date:   Thu, 12 Sep 2019 16:12:04 +0200
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Miklos Szeredi <mszeredi@...hat.com>
Cc:     Stefan Hajnoczi <stefanha@...hat.com>,
        virtualization@...ts.linux-foundation.org,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Vivek Goyal <vgoyal@...hat.com>,
        "Dr. David Alan Gilbert" <dgilbert@...hat.com>
Subject: Re: [PATCH v5 0/4] virtio-fs: shared file system for virtual machines

On Thu, Sep 12, 2019 at 3:07 PM Miklos Szeredi <mszeredi@...hat.com> wrote:

> Is this a regression from 9p?

Let me answer myself: 9p seems to behave similarly: after
suspend/resume it hangs.

So added -EOPNOTSUPP + pr_warn() to the freeze function and verified
that this fixes the bad behavior.

Thanks,
Miklos