From: mel@csn.ul.ie (Mel Gorman)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 08/15] mm: mmzone: MIGRATE_CMA migration type added
Date: Mon, 30 Jan 2012 14:52:30 +0000 [thread overview]
Message-ID: <20120130145230.GQ25268@csn.ul.ie> (raw)
In-Reply-To: <op.v8wepotk3l0zgt@mpn-glaptop>
On Mon, Jan 30, 2012 at 02:06:50PM +0100, Michal Nazarewicz wrote:
> >>@@ -1017,11 +1049,14 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
> >> rmv_page_order(page);
> >>
> >> /* Take ownership for orders >= pageblock_order */
> >>- if (current_order >= pageblock_order)
> >>+ if (current_order >= pageblock_order &&
> >>+ !is_pageblock_cma(page))
> >> change_pageblock_range(page, current_order,
> >> start_migratetype);
> >>
> >>- expand(zone, page, order, current_order, area, migratetype);
> >>+ expand(zone, page, order, current_order, area,
> >>+ is_migrate_cma(start_migratetype)
> >>+ ? start_migratetype : migratetype);
> >>
> >
> >What is this check meant to be doing?
> >
> >start_migratetype is determined by allocflags_to_migratetype() and
> >that never will be MIGRATE_CMA so is_migrate_cma(start_migratetype)
> >should always be false.
>
> Right, thanks! This should be the other way around, ie.:
>
> + expand(zone, page, order, current_order, area,
> + is_migrate_cma(migratetype)
> + ? migratetype : start_migratetype);
>
> I'll fix this and the calls to is_pageblock_cma().
>
That makes a lot more sense. Thanks.
I have a vague recollection that there was a problem with finding
unmovable pages in MIGRATE_CMA regions. This might have been part of
the problem.
--
Mel Gorman
SUSE Labs
WARNING: multiple messages have this Message-ID (diff)
From: Mel Gorman <mel@csn.ul.ie>
To: Michal Nazarewicz <mina86@mina86.com>
Cc: 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,
Kyungmin Park <kyungmin.park@samsung.com>,
Russell King <linux@arm.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Daniel Walker <dwalker@codeaurora.org>,
Arnd Bergmann <arnd@arndb.de>,
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: [PATCH 08/15] mm: mmzone: MIGRATE_CMA migration type added
Date: Mon, 30 Jan 2012 14:52:30 +0000 [thread overview]
Message-ID: <20120130145230.GQ25268@csn.ul.ie> (raw)
In-Reply-To: <op.v8wepotk3l0zgt@mpn-glaptop>
On Mon, Jan 30, 2012 at 02:06:50PM +0100, Michal Nazarewicz wrote:
> >>@@ -1017,11 +1049,14 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
> >> rmv_page_order(page);
> >>
> >> /* Take ownership for orders >= pageblock_order */
> >>- if (current_order >= pageblock_order)
> >>+ if (current_order >= pageblock_order &&
> >>+ !is_pageblock_cma(page))
> >> change_pageblock_range(page, current_order,
> >> start_migratetype);
> >>
> >>- expand(zone, page, order, current_order, area, migratetype);
> >>+ expand(zone, page, order, current_order, area,
> >>+ is_migrate_cma(start_migratetype)
> >>+ ? start_migratetype : migratetype);
> >>
> >
> >What is this check meant to be doing?
> >
> >start_migratetype is determined by allocflags_to_migratetype() and
> >that never will be MIGRATE_CMA so is_migrate_cma(start_migratetype)
> >should always be false.
>
> Right, thanks! This should be the other way around, ie.:
>
> + expand(zone, page, order, current_order, area,
> + is_migrate_cma(migratetype)
> + ? migratetype : start_migratetype);
>
> I'll fix this and the calls to is_pageblock_cma().
>
That makes a lot more sense. Thanks.
I have a vague recollection that there was a problem with finding
unmovable pages in MIGRATE_CMA regions. This might have been part of
the problem.
--
Mel Gorman
SUSE Labs
WARNING: multiple messages have this Message-ID (diff)
From: Mel Gorman <mel@csn.ul.ie>
To: Michal Nazarewicz <mina86@mina86.com>
Cc: 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,
Kyungmin Park <kyungmin.park@samsung.com>,
Russell King <linux@arm.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Daniel Walker <dwalker@codeaurora.org>,
Arnd Bergmann <arnd@arndb.de>,
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: [PATCH 08/15] mm: mmzone: MIGRATE_CMA migration type added
Date: Mon, 30 Jan 2012 14:52:30 +0000 [thread overview]
Message-ID: <20120130145230.GQ25268@csn.ul.ie> (raw)
In-Reply-To: <op.v8wepotk3l0zgt@mpn-glaptop>
On Mon, Jan 30, 2012 at 02:06:50PM +0100, Michal Nazarewicz wrote:
> >>@@ -1017,11 +1049,14 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
> >> rmv_page_order(page);
> >>
> >> /* Take ownership for orders >= pageblock_order */
> >>- if (current_order >= pageblock_order)
> >>+ if (current_order >= pageblock_order &&
> >>+ !is_pageblock_cma(page))
> >> change_pageblock_range(page, current_order,
> >> start_migratetype);
> >>
> >>- expand(zone, page, order, current_order, area, migratetype);
> >>+ expand(zone, page, order, current_order, area,
> >>+ is_migrate_cma(start_migratetype)
> >>+ ? start_migratetype : migratetype);
> >>
> >
> >What is this check meant to be doing?
> >
> >start_migratetype is determined by allocflags_to_migratetype() and
> >that never will be MIGRATE_CMA so is_migrate_cma(start_migratetype)
> >should always be false.
>
> Right, thanks! This should be the other way around, ie.:
>
> + expand(zone, page, order, current_order, area,
> + is_migrate_cma(migratetype)
> + ? migratetype : start_migratetype);
>
> I'll fix this and the calls to is_pageblock_cma().
>
That makes a lot more sense. Thanks.
I have a vague recollection that there was a problem with finding
unmovable pages in MIGRATE_CMA regions. This might have been part of
the problem.
--
Mel Gorman
SUSE Labs
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next prev parent reply other threads:[~2012-01-30 14:52 UTC|newest]
Thread overview: 202+ 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 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` [PATCH 01/15] mm: page_alloc: remove trailing whitespace Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 10:59 ` Mel Gorman
2012-01-30 10:59 ` Mel Gorman
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
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 11:15 ` Mel Gorman
2012-01-30 11:15 ` Mel Gorman
2012-01-30 11:15 ` Mel Gorman
2012-01-30 15:41 ` Michal Nazarewicz
2012-01-30 15:41 ` Michal Nazarewicz
2012-01-30 15:41 ` Michal Nazarewicz
2012-01-30 16:14 ` Mel Gorman
2012-01-30 16:14 ` Mel Gorman
2012-01-30 16:14 ` Mel Gorman
2012-01-31 16:23 ` Marek Szyprowski
2012-01-31 16:23 ` Marek Szyprowski
2012-01-31 16:23 ` Marek Szyprowski
2012-02-02 12:47 ` Mel Gorman
2012-02-02 12:47 ` Mel Gorman
2012-02-02 12:47 ` Mel Gorman
2012-02-02 19:53 ` Michal Nazarewicz
2012-02-02 19:53 ` Michal Nazarewicz
2012-02-02 19:53 ` Michal Nazarewicz
2012-02-03 9:31 ` Marek Szyprowski
2012-02-03 9:31 ` Marek Szyprowski
2012-02-03 9:31 ` Marek Szyprowski
2012-02-03 11:27 ` Mel Gorman
2012-02-03 11:27 ` Mel Gorman
2012-02-03 11:27 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 03/15] mm: compaction: introduce isolate_migratepages_range() Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 11:24 ` Mel Gorman
2012-01-30 11:24 ` Mel Gorman
2012-01-30 11:24 ` Mel Gorman
2012-01-30 12:42 ` Michal Nazarewicz
2012-01-30 12:42 ` Michal Nazarewicz
2012-01-30 12:42 ` Michal Nazarewicz
2012-01-30 13:25 ` Mel Gorman
2012-01-30 13:25 ` Mel Gorman
2012-01-30 13:25 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 04/15] mm: compaction: introduce isolate_freepages_range() Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 11:48 ` Mel Gorman
2012-01-30 11:48 ` Mel Gorman
2012-01-30 11:48 ` Mel Gorman
2012-01-30 11:55 ` Mel Gorman
2012-01-30 11:55 ` 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
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 11:57 ` Mel Gorman
2012-01-30 11:57 ` Mel Gorman
2012-01-30 11:57 ` Mel Gorman
2012-01-30 12:33 ` Michal Nazarewicz
2012-01-30 12:33 ` Michal Nazarewicz
2012-01-30 12:33 ` Michal Nazarewicz
2012-01-26 9:00 ` [PATCH 06/15] mm: page_alloc: introduce alloc_contig_range() Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 12:11 ` Mel Gorman
2012-01-30 12:11 ` Mel Gorman
2012-01-30 12:11 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 07/15] mm: page_alloc: change fallbacks array handling Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 12:12 ` Mel Gorman
2012-01-30 12:12 ` Mel Gorman
2012-01-30 12:12 ` Mel Gorman
2012-01-26 9:00 ` [PATCH 08/15] mm: mmzone: MIGRATE_CMA migration type added Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 12:35 ` Mel Gorman
2012-01-30 12:35 ` Mel Gorman
2012-01-30 12:35 ` Mel Gorman
2012-01-30 13:06 ` Michal Nazarewicz
2012-01-30 13:06 ` Michal Nazarewicz
2012-01-30 13:06 ` Michal Nazarewicz
2012-01-30 14:52 ` Mel Gorman [this message]
2012-01-30 14:52 ` Mel Gorman
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 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` [PATCH 10/15] mm: extract reclaim code from __alloc_pages_direct_reclaim() Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 12:42 ` Mel Gorman
2012-01-30 12:42 ` Mel Gorman
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
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-30 13:05 ` Mel Gorman
2012-01-30 13:05 ` Mel Gorman
2012-01-30 13:05 ` Mel Gorman
2012-01-31 17:15 ` Marek Szyprowski
2012-01-31 17:15 ` Marek Szyprowski
2012-01-31 17:15 ` Marek Szyprowski
2012-01-26 9:00 ` [PATCH 12/15] drivers: add Contiguous Memory Allocator Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-27 9:44 ` [Linaro-mm-sig] " Ohad Ben-Cohen
2012-01-27 9:44 ` Ohad Ben-Cohen
2012-01-27 9:44 ` Ohad Ben-Cohen
2012-01-27 10:53 ` Marek Szyprowski
2012-01-27 10:53 ` Marek Szyprowski
2012-01-27 10:53 ` Marek Szyprowski
2012-01-27 14:27 ` Clark, Rob
2012-01-27 14:27 ` Clark, Rob
2012-01-27 14:27 ` Clark, Rob
2012-01-27 14:51 ` Marek Szyprowski
2012-01-27 14:51 ` Marek Szyprowski
2012-01-27 14:51 ` Marek Szyprowski
2012-01-27 14:59 ` Ohad Ben-Cohen
2012-01-27 14:59 ` Ohad Ben-Cohen
2012-01-27 14:59 ` Ohad Ben-Cohen
2012-01-27 15:17 ` Marek Szyprowski
2012-01-27 15:17 ` Marek Szyprowski
2012-01-27 15:17 ` Marek Szyprowski
2012-01-28 18:57 ` Ohad Ben-Cohen
2012-01-28 18:57 ` Ohad Ben-Cohen
2012-01-28 18:57 ` Ohad Ben-Cohen
2012-01-30 7:43 ` Marek Szyprowski
2012-01-30 7:43 ` Marek Szyprowski
2012-01-30 7:43 ` Marek Szyprowski
2012-01-30 9:16 ` Ohad Ben-Cohen
2012-01-30 9:16 ` Ohad Ben-Cohen
2012-01-30 9:16 ` Ohad Ben-Cohen
2012-01-27 14:56 ` Ohad Ben-Cohen
2012-01-27 14:56 ` 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 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` [PATCH 14/15] ARM: " Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` 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 9:00 ` Marek Szyprowski
2012-01-26 9:00 ` Marek Szyprowski
2012-01-26 15:31 ` [PATCHv19 00/15] Contiguous Memory Allocator Arnd Bergmann
2012-01-26 15:31 ` Arnd Bergmann
2012-01-26 15:31 ` Arnd Bergmann
2012-01-26 15:38 ` Michal Nazarewicz
2012-01-26 15:38 ` Michal Nazarewicz
2012-01-26 15:38 ` Michal Nazarewicz
2012-01-26 15:48 ` Marek Szyprowski
2012-01-26 15:48 ` Marek Szyprowski
2012-01-26 15:48 ` Marek Szyprowski
2012-01-28 0:26 ` Andrew Morton
2012-01-28 0:26 ` Andrew Morton
2012-01-28 0:26 ` Andrew Morton
2012-01-29 18:09 ` Rob Clark
2012-01-29 18:09 ` Rob Clark
2012-01-29 18:09 ` Rob Clark
2012-01-29 20:32 ` Anca Emanuel
2012-01-29 20:32 ` Anca Emanuel
2012-01-29 20:32 ` Anca Emanuel
2012-01-29 20:51 ` Arnd Bergmann
2012-01-29 20:51 ` Arnd Bergmann
2012-01-29 20:51 ` Arnd Bergmann
2012-01-30 13:25 ` Mel Gorman
2012-01-30 13:25 ` Mel Gorman
2012-01-30 13:25 ` Mel Gorman
2012-01-30 15:43 ` Michal Nazarewicz
2012-01-30 15:43 ` Michal Nazarewicz
2012-01-30 15:43 ` Michal Nazarewicz
2012-01-31 17:17 ` Benjamin Gaignard
2012-02-01 8:47 ` Marek Szyprowski
2012-02-01 8:47 ` Marek Szyprowski
2012-02-01 8:47 ` Marek Szyprowski
2012-02-10 18:10 ` Marek Szyprowski
2012-02-10 18:10 ` Marek Szyprowski
2012-02-10 18:10 ` Marek Szyprowski
-- strict thread matches above, loose matches on Subject: below --
2012-02-03 12:18 [PATCHv20 " Marek Szyprowski
2012-02-03 12:18 ` [PATCH 08/15] mm: mmzone: MIGRATE_CMA migration type added Marek Szyprowski
2012-02-03 12:18 ` Marek Szyprowski
2012-02-03 12:18 ` Marek Szyprowski
2012-02-03 13:53 ` Mel Gorman
2012-02-03 13:53 ` Mel Gorman
2012-02-03 13:53 ` Mel Gorman
2012-02-03 14:19 ` Hillf Danton
2012-02-03 14:19 ` Hillf Danton
2012-02-03 14:19 ` Hillf Danton
2012-02-03 15:50 ` Michal Nazarewicz
2012-02-03 15:50 ` Michal Nazarewicz
2012-02-03 15:50 ` Michal Nazarewicz
2012-02-04 9:09 ` Hillf Danton
2012-02-04 9:09 ` Hillf Danton
2012-02-04 9:09 ` Hillf Danton
2012-02-05 14:37 ` Michal Nazarewicz
2012-02-05 14:37 ` Michal Nazarewicz
2012-02-05 14:37 ` Michal Nazarewicz
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