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Date: Tue, 10 Jul 2018 16:18:25 +0200
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org, jing xia <jing.xia.mail@gmail.com>,
        David Rientjes <rientjes@google.com>,
        Guenter Roeck <linux@roeck-us.net>,
        Douglas Anderson <dianders@chromium.org>,
        Mike Snitzer <msnitzer@redhat.com>
Subject: Re: [PATCH 4.4, 4.9] dm bufio: don't take the lock in
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On Wed, Jul 04, 2018 at 10:41:03AM -0400, Mikulas Patocka wrote:
> This is backport of the upstream patch 
> d12067f428c037b4575aaeb2be00847fc214c24a. It should be backported to 
> stable kernels because this performance problem was seen on the android 
> 4.4 kernel.

Now applied, thanks.

greg k-h