linux-kernel - Re: Converting dev->mutex into dev->spinlock ?

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Message-ID: <Y+CFofRj7EYefqUR@casper.infradead.org>
Date:   Mon, 6 Feb 2023 04:44:17 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Hillf Danton <hdanton@...a.com>
Cc:     Alan Stern <stern@...land.harvard.edu>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>, linux-mm@...ck.org,
        LKML <linux-kernel@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Converting dev->mutex into dev->spinlock ?

On Mon, Feb 06, 2023 at 10:56:29AM +0800, Hillf Danton wrote:
> On Sun, 5 Feb 2023 11:46:06 -0500 Alan Stern <stern@...land.harvard.edu>
> > 
> > And by the way, by disabling lockdep validation I am declaraing that 
> > enabling it would cause an overwhelming number of false positives, 
> 
> Could you share 5 false positives you see upstream to help understand how
> it is useless?

I've asked you before to stop cc'ing linux-mm on things which aren't
about memory management.  Now I'm asking you publically.