From: Mel Gorman <mel@csn.ul.ie>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org, linux-mm@kvack.org,
linaro-mm-sig@lists.linaro.org,
Michal Nazarewicz <mina86@mina86.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Russell King <linux@arm.linux.org.uk>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Daniel Walker <dwalker@codeaurora.org>,
Jesse Barker <jesse.barker@linaro.org>,
Jonathan Corbet <corbet@lwn.net>,
Shariq Hasnain <shariq.hasnain@linaro.org>,
Chunsang Jeong <chunsang.jeong@linaro.org>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Benjamin Gaignard <benjamin.gaignard@linaro.org>
Subject: Re: [PATCHv19 00/15] Contiguous Memory Allocator
Date: Mon, 30 Jan 2012 13:25:12 +0000 [thread overview]
Message-ID: <20120130132512.GO25268@csn.ul.ie> (raw)
In-Reply-To: <20120127162624.40cba14e.akpm@linux-foundation.org>
On Fri, Jan 27, 2012 at 04:26:24PM -0800, Andrew Morton wrote:
> On Thu, 26 Jan 2012 15:31:40 +0000
> Arnd Bergmann <arnd@arndb.de> wrote:
>
> > On Thursday 26 January 2012, Marek Szyprowski wrote:
> > > Welcome everyone!
> > >
> > > Yes, that's true. This is yet another release of the Contiguous Memory
> > > Allocator patches. This version mainly includes code cleanups requested
> > > by Mel Gorman and a few minor bug fixes.
> >
> > Hi Marek,
> >
> > Thanks for keeping up this work! I really hope it works out for the
> > next merge window.
>
> Someone please tell me when it's time to start paying attention
> again ;)
>
> These patches don't seem to have as many acked-bys and reviewed-bys as
> I'd expect.
I reviewed the core MM changes and I've acked most of them so the
next release should have a few acks where you expect them. I did not
add a reviewed-by because I did not build and test the thing.
For me, Patch 2 is the only one that must be fixed prior to merging
as it can interfere with pages on a remote per-cpu list which is
dangerous. I know your suggestion will be to delete the per-cpu lists
and be done with it but I am a bit away from doing that just yet.
Patch 8 could do with a bit more care too but it is not a
potential hand grenade like patch 2 and could be fixed as part of
a follow-up. Even if you don't see an ack from me there, it should not
be treated as a show stopper.
I highlighted some issues on how CMA interacts with reclaim but I
think this is a problem specific to CMA and should not prevent it being
merged. I just wanted to be sure that the CMA people were aware of the
potential issues so they will recognise the class of bug if it occurs.
> Given the scope and duration of this, it would be useful
> to gather these up. But please ensure they are real ones - people
> sometimes like to ack things without showing much sign of having
> actually read them.
>
FWIW, the acks I put on the core MM changes are real acks :)
> The patches do seem to have been going round in ever-decreasing circles
> lately and I think we have decided to merge them (yes?) so we may as well
> get on and do that and sort out remaining issues in-tree.
>
I'm a lot happier with the core MM patches than I was when I reviewed
this first around last September or October.
--
Mel Gorman
SUSE Labs
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next prev parent reply other threads:[~2012-01-30 13:25 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-26 9:00 [PATCHv19 00/15] Contiguous Memory Allocator Marek Szyprowski
2012-01-26 9:00 ` [PATCH 01/15] mm: page_alloc: remove trailing whitespace Marek Szyprowski
2012-01-30 10:59 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 02/15] mm: page_alloc: update migrate type of pages on pcp when isolating Marek Szyprowski
2012-01-30 11:15 ` Mel Gorman
2012-01-30 15:41 ` Michal Nazarewicz
2012-01-30 16:14 ` Mel Gorman
2012-01-31 16:23 ` Marek Szyprowski
2012-02-02 12:47 ` Mel Gorman
2012-02-02 19:53 ` Michal Nazarewicz
2012-02-03 9:31 ` Marek Szyprowski
2012-02-03 11:27 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 03/15] mm: compaction: introduce isolate_migratepages_range() Marek Szyprowski
2012-01-30 11:24 ` Mel Gorman
2012-01-30 12:42 ` Michal Nazarewicz
2012-01-30 13:25 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 04/15] mm: compaction: introduce isolate_freepages_range() Marek Szyprowski
2012-01-30 11:48 ` Mel Gorman
2012-01-30 11:55 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 05/15] mm: compaction: export some of the functions Marek Szyprowski
2012-01-30 11:57 ` Mel Gorman
2012-01-30 12:33 ` Michal Nazarewicz
2012-01-26 9:00 ` [PATCH 06/15] mm: page_alloc: introduce alloc_contig_range() Marek Szyprowski
2012-01-30 12:11 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 07/15] mm: page_alloc: change fallbacks array handling Marek Szyprowski
2012-01-30 12:12 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 08/15] mm: mmzone: MIGRATE_CMA migration type added Marek Szyprowski
2012-01-30 12:35 ` Mel Gorman
2012-01-30 13:06 ` Michal Nazarewicz
2012-01-30 14:52 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 09/15] mm: page_isolation: MIGRATE_CMA isolation functions added Marek Szyprowski
2012-01-26 9:00 ` [PATCH 10/15] mm: extract reclaim code from __alloc_pages_direct_reclaim() Marek Szyprowski
2012-01-30 12:42 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 11/15] mm: trigger page reclaim in alloc_contig_range() to stabilize watermarks Marek Szyprowski
2012-01-30 13:05 ` Mel Gorman
2012-01-31 17:15 ` Marek Szyprowski
2012-01-26 9:00 ` [PATCH 12/15] drivers: add Contiguous Memory Allocator Marek Szyprowski
2012-01-27 9:44 ` [Linaro-mm-sig] " Ohad Ben-Cohen
2012-01-27 10:53 ` Marek Szyprowski
2012-01-27 14:27 ` Clark, Rob
2012-01-27 14:51 ` Marek Szyprowski
2012-01-27 14:59 ` Ohad Ben-Cohen
2012-01-27 15:17 ` Marek Szyprowski
2012-01-28 18:57 ` Ohad Ben-Cohen
2012-01-30 7:43 ` Marek Szyprowski
2012-01-30 9:16 ` Ohad Ben-Cohen
2012-01-27 14:56 ` Ohad Ben-Cohen
2012-01-26 9:00 ` [PATCH 13/15] X86: integrate CMA with DMA-mapping subsystem Marek Szyprowski
2012-01-26 9:00 ` [PATCH 14/15] ARM: " Marek Szyprowski
2012-01-26 9:00 ` [PATCH 15/15] ARM: Samsung: use CMA for 2 memory banks for s5p-mfc device Marek Szyprowski
2012-01-26 15:31 ` [PATCHv19 00/15] Contiguous Memory Allocator Arnd Bergmann
2012-01-26 15:38 ` Michal Nazarewicz
2012-01-26 15:48 ` Marek Szyprowski
2012-01-28 0:26 ` Andrew Morton
2012-01-29 18:09 ` Rob Clark
2012-01-29 20:32 ` Anca Emanuel
2012-01-29 20:51 ` Arnd Bergmann
2012-01-30 13:25 ` Mel Gorman [this message]
2012-01-30 15:43 ` Michal Nazarewicz
2012-01-31 17:17 ` Benjamin Gaignard
2012-02-01 8:47 ` Marek Szyprowski
2012-02-10 18:10 ` Marek Szyprowski
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