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Date:   Mon, 25 Sep 2023 09:48:38 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Samuel Holland <samuel.holland@sifive.com>
Cc:     Christoph Hellwig <hch@lst.de>, Al Viro <viro@zeniv.linux.org.uk>,
        Christian Brauner <brauner@kernel.org>,
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        Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Subject: Re: [PATCH 07/17] nbd: call blk_mark_disk_dead in
 nbd_clear_sock_ioctl
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On Wed, Sep 20, 2023 at 03:41:11PM -0500, Samuel Holland wrote:
> [   14.619101] Buffer I/O error on dev nbd0, logical block 0, async page read
> 
> [   14.630490]  nbd0: unable to read partition table
> 
> I wonder if disk_force_media_change() is the right thing to call here instead.

So what are the semantics of clearing the socket?

The <= 6.5 behavior of invalidating fs caches, but not actually marking
the fs shutdown is pretty broken, especially if this expects to resurrect
the device and thus the file system later on.