Re: [PATCH 3.16, 4.4, 4.9] dm bufio: drop the lock when doing GFP_NOIO allocation

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Subject: Re: [PATCH 3.16, 4.4, 4.9] dm bufio: drop the lock when doing GFP_NOIO allocation
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 10 Jul 2018 16:16:01 +0200
Cc: Ben Hutchings <ben@xxxxxxxxxxxxxxx>, stable@xxxxxxxxxxxxxxx, jing xia <jing.xia.mail@xxxxxxxxx>, David Rientjes <rientjes@xxxxxxxxxx>, Guenter Roeck <linux@xxxxxxxxxxxx>, Douglas Anderson <dianders@xxxxxxxxxxxx>, Mike Snitzer <msnitzer@xxxxxxxxxx>
In-reply-to: <alpine.LRH.2.02.1807041037150.18998@file01.intranet.prod.int.rdu2.redhat.com>
User-agent: Mutt/1.10.0 (2018-05-17)

On Wed, Jul 04, 2018 at 10:39:40AM -0400, Mikulas Patocka wrote:
> This is backport of the upstream patch 
> 41c73a49df31151f4ff868f28fe4f129f113fa2c. 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

References:
- [PATCH 3.16, 4.4, 4.9] dm bufio: drop the lock when doing GFP_NOIO allocation
  - From: Mikulas Patocka

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