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Date: Tue, 26 Sep 2023 11:24:27 +0200
From: Christoph Hellwig <hch@lst.de>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Christoph Hellwig <hch@lst.de>, Christian Brauner <brauner@kernel.org>,
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Subject: Re: [PATCH 10/19] USB: gadget/legacy: remove sb_mutex
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	lindbergh.monkeyblade.net

On Wed, Sep 13, 2023 at 12:10:56PM -0400, Alan Stern wrote:
> On Wed, Sep 13, 2023 at 08:10:04AM -0300, Christoph Hellwig wrote:
> > Creating new a new super_block vs freeing the old one for single instance
> > file systems is serialized by the wait for SB_DEAD.
> > 
> > Remove the superfluous sb_mutex.
> > 
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > ---
> 
> You might mention that this is essentially a reversion of commit 
> d18dcfe9860e ("USB: gadgetfs: Fix race between mounting and 
> unmounting").

The difference we have now is that sb creation waits for the
old one to go way, but I'll add a notice on all that.