From: Dave Hansen <dave@sr71.net>
To: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Dan Magenheimer <dan.magenheimer@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Nitin Gupta <ngupta@vflare.org>, Minchan Kim <minchan@kernel.org>,
Robert Jennings <rcj@linux.vnet.ibm.com>,
Jenifer Hopper <jhopper@us.ibm.com>, Mel Gorman <mgorman@suse.de>,
Johannes Weiner <jweiner@redhat.com>,
Rik van Riel <riel@redhat.com>,
Larry Woodman <lwoodman@redhat.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Joe Perches <joe@perches.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Cody P Schafer <cody@linux.vnet.ibm.com>,
Hugh Dickens <hughd@google.com>,
Paul Mackerras <paulus@samba.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
devel@driverdev.osuosl.org
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
Date: Wed, 15 May 2013 13:24:07 -0700 [thread overview]
Message-ID: <5193EEE7.80603@sr71.net> (raw)
In-Reply-To: <20130515200942.GA17724@cerebellum>
On 05/15/2013 01:09 PM, Seth Jennings wrote:
> On Wed, May 15, 2013 at 02:55:06PM -0400, Konrad Rzeszutek Wilk wrote:
>>> Sorry, but I don't think that's appropriate for a patch in the MM subsystem.
>>
>> Perhaps a compromise can be reached where this code is merged as a driver
>> not a core mm component. There is a high bar to be in the MM - it has to
>> work with many many different configurations.
>>
>> And drivers don't have such a high bar. They just need to work on a specific
>> issue and that is it. If zswap ended up in say, drivers/mm that would make
>> it more palpable I think.
The issue is not whether it is a loadable module or a driver. Nobody
here is stupid enough to say, "hey, now it's a driver/module, all of the
complex VM interactions are finally fixed!"
If folks don't want this in their system, there's a way to turn it off,
today, with the sysfs tunables. We don't need _another_ way to turn it
off at runtime (unloading the module/driver).
--
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next prev parent reply other threads:[~2013-05-15 20:24 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <<1368448803-2089-1-git-send-email-sjenning@linux.vnet.ibm.com>
[not found] ` <<1368448803-2089-3-git-send-email-sjenning@linux.vnet.ibm.com>
2013-05-13 15:43 ` [PATCHv11 2/4] zbud: add to mm/ Dan Magenheimer
2013-05-13 20:59 ` Seth Jennings
2013-05-16 15:30 ` Rik van Riel
[not found] ` <<1368448803-2089-4-git-send-email-sjenning@linux.vnet.ibm.com>
2013-05-13 22:31 ` [PATCHv11 3/4] zswap: " Dan Magenheimer
2013-05-14 16:35 ` Seth Jennings
2013-05-14 20:18 ` Dan Magenheimer
2013-05-14 22:55 ` Seth Jennings
2013-05-15 17:09 ` Dan Magenheimer
2013-05-15 18:55 ` Konrad Rzeszutek Wilk
2013-05-15 19:35 ` Dan Magenheimer
2013-05-15 20:45 ` Rik van Riel
2013-05-15 21:36 ` Dan Magenheimer
2013-05-15 22:01 ` Rik van Riel
2013-05-15 20:09 ` Seth Jennings
2013-05-15 20:24 ` Dave Hansen [this message]
2013-05-15 20:55 ` Dan Magenheimer
2013-05-15 20:45 ` Konrad Rzeszutek Wilk
2013-05-15 20:52 ` Dan Magenheimer
2013-05-15 22:14 ` Rik van Riel
2013-05-16 16:45 ` Dan Magenheimer
2013-05-16 17:06 ` Rik van Riel
2013-05-13 12:39 [PATCHv11 0/4] zswap: compressed swap caching Seth Jennings
2013-05-13 12:40 ` [PATCHv11 1/4] debugfs: add get/set for atomic types Seth Jennings
2013-05-16 14:58 ` Rik van Riel
2013-05-13 12:40 ` [PATCHv11 2/4] zbud: add to mm/ Seth Jennings
2013-05-14 8:47 ` Bob Liu
2013-05-14 17:03 ` Seth Jennings
2013-05-16 15:30 ` Rik van Riel
2013-05-17 15:48 ` Mel Gorman
2013-05-19 20:52 ` Seth Jennings
2013-05-20 13:54 ` Mel Gorman
2013-05-20 15:42 ` Seth Jennings
2013-05-21 8:10 ` Mel Gorman
2013-05-23 2:00 ` Bob Liu
2013-05-23 9:52 ` Mel Gorman
2013-05-13 12:40 ` [PATCHv11 3/4] zswap: " Seth Jennings
2013-05-14 9:19 ` Bob Liu
2013-05-14 16:00 ` Seth Jennings
2013-05-14 16:37 ` Dan Magenheimer
2013-05-14 17:28 ` Seth Jennings
2013-05-14 20:54 ` Dan Magenheimer
2013-05-17 17:00 ` Mel Gorman
2013-05-16 17:16 ` Rik van Riel
2013-05-17 16:54 ` Mel Gorman
2013-05-19 23:33 ` Seth Jennings
2013-05-13 12:40 ` [PATCHv11 4/4] zswap: add documentation Seth Jennings
2013-05-16 17:06 ` Rik van Riel
2013-05-17 16:04 ` Mel Gorman
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