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From: "Holger Hoffstätte" <holger@applied-asynchrony.com>
To: stable@vger.kernel.org
Subject: Re: Fwd: [PATCH] cfq: fix starvation of asynchronous writes
Date: Fri, 21 Oct 2016 08:53:17 +0000 (UTC)	[thread overview]
Message-ID: <pan$8750b$b6c35f9b$3a06946b$eaaea718@applied-asynchrony.com> (raw)
In-Reply-To: 20161021073634.GD22683@kroah.com

On Fri, 21 Oct 2016 09:36:34 +0200, Greg KH wrote:

> On Thu, Oct 20, 2016 at 02:08:50PM -0400, Glauber Costa wrote:
>> subject: [PATCH] cfq: fix starvation of asynchronous writes
>> commit id: 3932a86b4b9d1f0b049d64d4591ce58ad18b44ec
>> why: cfq starvation, easily can easily trigger with O_DIRECT-heavy workloads.
>> versions: all that are maintained, if possible. I have verified it
>> cherry picks cleanly at least until 4.5
>> reason for not using "CC stable": I just forgot, sorry.
> 
> It seems to apply to 4.4 as well, is that ok, or should it not go there?

FWIW I've had it in 4.4 until recently and it worked just fine.
The corner case that is addressed is generic and seems to have been
there quite a while.

-h


  reply	other threads:[~2016-10-21  8:53 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-23  0:59 [PATCH] cfq: fix starvation of asynchronous writes Glauber Costa
2016-09-23  2:10 ` Jens Axboe
2016-09-23 16:11   ` Jens Axboe
2016-09-23 10:22 ` Paolo Valente
2016-09-23 10:22   ` Paolo Valente
2016-09-23 11:28   ` Glauber Costa
2016-09-23 12:19     ` Glauber Costa
2016-10-20 18:08 ` Fwd: " Glauber Costa
2016-10-21  7:36   ` Greg KH
2016-10-21  8:53     ` Holger Hoffstätte [this message]
2016-10-21  9:07       ` Greg KH
2016-10-21 13:15     ` Glauber Costa

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