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From: Vlastimil Babka <vbabka@suse.cz>
To: Fabio Estevam <festevam@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Shawn Guo <shawn.guo@linaro.org>,
	Kevin Hilman <khilman@linaro.org>, Rik van Riel <riel@redhat.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Minchan Kim <minchan@kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Hugh Dickins <hughd@google.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Michal Nazarewicz <mina86@mina86.com>,
	linux-mm@kvack.org, Mel Gorman <mgorman@suse.de>,
	David Rientjes <rientjes@google.com>,
	Olof Johansson <olof@lixom.net>, Greg Thelen <gthelen@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Christoph Lameter <cl@linux.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH -mm] mm, compaction: properly signal and act upon lock and need_sched() contention - fix
Date: Mon, 02 Jun 2014 16:33:41 +0200	[thread overview]
Message-ID: <538C8B45.6070803@suse.cz> (raw)
In-Reply-To: <CAOMZO5BKaicq7NkoJO4vU5W3hiDike6kSdH+2eD=h0B5BsDjTg@mail.gmail.com>

compact_should_abort() returns true instead of false and vice versa
due to changes between v1 and v2 of the patch. This makes both async
and sync compaction abort with high probability, and has been reported
to cause e.g. soft lockups on some ARM boards, or drivers calling
dma_alloc_coherent() fail to probe with CMA enabled on different boards.

This patch fixes the return value to match comments and callers expecations.

Reported-and-tested-by: Kevin Hilman <khilman@linaro.org>
Reported-and-tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
 mm/compaction.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index a525cd4..5175019 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -237,13 +237,13 @@ static inline bool compact_should_abort(struct compact_control *cc)
 	if (need_resched()) {
 		if (cc->mode == MIGRATE_ASYNC) {
 			cc->contended = true;
-			return false;
+			return true;
 		}
 
 		cond_resched();
 	}
 
-	return true;
+	return false;
 }
 
 /* Returns true if the page is within a block suitable for migration to */
-- 1.8.4.5 

WARNING: multiple messages have this Message-ID
From: Vlastimil Babka <vbabka@suse.cz>
To: Fabio Estevam <festevam@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Shawn Guo <shawn.guo@linaro.org>,
	Kevin Hilman <khilman@linaro.org>, Rik van Riel <riel@redhat.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Minchan Kim <minchan@kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Hugh Dickins <hughd@google.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Michal Nazarewicz <mina86@mina86.com>,
	linux-mm@kvack.org, Mel Gorman <mgorman@suse.de>,
	David Rientjes <rientjes@google.com>,
	Olof Johansson <olof@lixom.net>, Greg Thelen <gthelen@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Christoph Lameter <cl@linux.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH -mm] mm, compaction: properly signal and act upon lock and need_sched() contention - fix
Date: Mon, 02 Jun 2014 16:33:41 +0200	[thread overview]
Message-ID: <538C8B45.6070803@suse.cz> (raw)
In-Reply-To: <CAOMZO5BKaicq7NkoJO4vU5W3hiDike6kSdH+2eD=h0B5BsDjTg@mail.gmail.com>

compact_should_abort() returns true instead of false and vice versa
due to changes between v1 and v2 of the patch. This makes both async
and sync compaction abort with high probability, and has been reported
to cause e.g. soft lockups on some ARM boards, or drivers calling
dma_alloc_coherent() fail to probe with CMA enabled on different boards.

This patch fixes the return value to match comments and callers expecations.

Reported-and-tested-by: Kevin Hilman <khilman@linaro.org>
Reported-and-tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
 mm/compaction.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index a525cd4..5175019 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -237,13 +237,13 @@ static inline bool compact_should_abort(struct compact_control *cc)
 	if (need_resched()) {
 		if (cc->mode == MIGRATE_ASYNC) {
 			cc->contended = true;
-			return false;
+			return true;
 		}
 
 		cond_resched();
 	}
 
-	return true;
+	return false;
 }
 
 /* Returns true if the page is within a block suitable for migration to */
-- 1.8.4.5 

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WARNING: multiple messages have this Message-ID
From: vbabka@suse.cz (Vlastimil Babka)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH -mm] mm, compaction: properly signal and act upon lock and need_sched() contention - fix
Date: Mon, 02 Jun 2014 16:33:41 +0200	[thread overview]
Message-ID: <538C8B45.6070803@suse.cz> (raw)
In-Reply-To: <CAOMZO5BKaicq7NkoJO4vU5W3hiDike6kSdH+2eD=h0B5BsDjTg@mail.gmail.com>

compact_should_abort() returns true instead of false and vice versa
due to changes between v1 and v2 of the patch. This makes both async
and sync compaction abort with high probability, and has been reported
to cause e.g. soft lockups on some ARM boards, or drivers calling
dma_alloc_coherent() fail to probe with CMA enabled on different boards.

This patch fixes the return value to match comments and callers expecations.

Reported-and-tested-by: Kevin Hilman <khilman@linaro.org>
Reported-and-tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
 mm/compaction.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index a525cd4..5175019 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -237,13 +237,13 @@ static inline bool compact_should_abort(struct compact_control *cc)
 	if (need_resched()) {
 		if (cc->mode == MIGRATE_ASYNC) {
 			cc->contended = true;
-			return false;
+			return true;
 		}
 
 		cond_resched();
 	}
 
-	return true;
+	return false;
 }
 
 /* Returns true if the page is within a block suitable for migration to */
-- 1.8.4.5 

  reply	other threads:[~2014-06-02 14:33 UTC|newest]

Thread overview: 267+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-01  0:45 [patch 1/2] mm, migration: add destination page freeing callback David Rientjes
2014-05-01  0:45 ` David Rientjes
2014-05-01  0:45 ` [patch 2/2] mm, compaction: return failed migration target pages back to freelist David Rientjes
2014-05-01  0:45   ` David Rientjes
2014-05-01  5:10   ` Naoya Horiguchi
2014-05-01 21:02     ` David Rientjes
2014-05-01 21:02       ` David Rientjes
2014-05-01  5:08 ` [patch 1/2] mm, migration: add destination page freeing callback Naoya Horiguchi
     [not found] ` <5361d71e.236ec20a.1b3d.ffffc8aeSMTPIN_ADDED_BROKEN@mx.google.com>
2014-05-01 21:02   ` David Rientjes
2014-05-01 21:02     ` David Rientjes
2014-05-01 21:35 ` [patch v2 1/4] " David Rientjes
2014-05-01 21:35   ` David Rientjes
2014-05-01 21:35   ` [patch v2 2/4] mm, compaction: return failed migration target pages back to freelist David Rientjes
2014-05-01 21:35     ` David Rientjes
2014-05-02 10:11     ` Mel Gorman
2014-05-02 10:11       ` Mel Gorman
2014-05-02 15:23     ` Vlastimil Babka
2014-05-02 15:23       ` Vlastimil Babka
2014-05-02 15:26       ` [PATCH] mm/compaction: do not count migratepages when unnecessary Vlastimil Babka
2014-05-06 21:18         ` Naoya Horiguchi
     [not found]         ` <1399411134-k43fsr0p@n-horiguchi@ah.jp.nec.com>
2014-05-07  9:33           ` Vlastimil Babka
2014-05-07  9:33             ` Vlastimil Babka
2014-05-02 15:27       ` [PATCH 2/2] mm/compaction: avoid rescanning pageblocks in isolate_freepages Vlastimil Babka
2014-05-02 15:27         ` Vlastimil Babka
2014-05-06 22:19         ` Naoya Horiguchi
     [not found]         ` <1399414778-xakujfb3@n-horiguchi@ah.jp.nec.com>
2014-05-07  9:22           ` Vlastimil Babka
2014-05-07  9:22             ` Vlastimil Babka
2014-05-02 15:29       ` [PATCH 1/2] mm/compaction: do not count migratepages when unnecessary Vlastimil Babka
2014-05-02 15:29         ` Vlastimil Babka
2014-05-01 21:35   ` [patch v2 3/4] mm, compaction: add per-zone migration pfn cache for async compaction David Rientjes
2014-05-01 21:35     ` David Rientjes
2014-05-05  9:34     ` Vlastimil Babka
2014-05-05  9:34       ` Vlastimil Babka
2014-05-05  9:51       ` David Rientjes
2014-05-05  9:51         ` David Rientjes
2014-05-05 14:24         ` Vlastimil Babka
2014-05-05 14:24           ` Vlastimil Babka
2014-05-06  0:29           ` David Rientjes
2014-05-06  0:29             ` David Rientjes
2014-05-06 11:52             ` Vlastimil Babka
2014-05-06 11:52               ` Vlastimil Babka
2014-05-01 21:35   ` [patch v2 4/4] mm, thp: do not perform sync compaction on pagefault David Rientjes
2014-05-01 21:35     ` David Rientjes
2014-05-02 10:22     ` Mel Gorman
2014-05-02 10:22       ` Mel Gorman
2014-05-02 11:22       ` David Rientjes
2014-05-02 11:22         ` David Rientjes
2014-05-02 11:58         ` Mel Gorman
2014-05-02 20:29           ` David Rientjes
2014-05-02 20:29             ` David Rientjes
2014-05-05 14:48             ` Vlastimil Babka
2014-05-05 14:48               ` Vlastimil Babka
2014-05-06  8:55             ` Mel Gorman
2014-05-06  8:55               ` Mel Gorman
2014-05-06 15:05               ` Vlastimil Babka
2014-05-06 15:05                 ` Vlastimil Babka
2014-05-02 10:10   ` [patch v2 1/4] mm, migration: add destination page freeing callback Mel Gorman
2014-05-07  2:22   ` [patch v3 1/6] " David Rientjes
2014-05-07  2:22     ` David Rientjes
2014-05-07  2:22     ` [patch v3 2/6] mm, compaction: return failed migration target pages back to freelist David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07 14:14       ` Naoya Horiguchi
2014-05-07 21:15       ` Andrew Morton
2014-05-07 21:15         ` Andrew Morton
2014-05-07 21:21         ` David Rientjes
2014-05-07 21:21           ` David Rientjes
2014-05-12  8:35           ` Vlastimil Babka
2014-05-12  8:35             ` Vlastimil Babka
2014-05-07 21:39         ` Greg Thelen
2014-05-07 21:39           ` Greg Thelen
2014-05-12  8:37           ` Vlastimil Babka
2014-05-12  8:37             ` Vlastimil Babka
2014-05-07  2:22     ` [patch v3 3/6] mm, compaction: add per-zone migration pfn cache for async compaction David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:34       ` Vlastimil Babka
2014-05-07  9:34         ` Vlastimil Babka
2014-05-07 20:56       ` Naoya Horiguchi
2014-05-07  2:22     ` [patch v3 4/6] mm, compaction: embed migration mode in compact_control David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:55       ` Vlastimil Babka
2014-05-07  9:55         ` Vlastimil Babka
2014-05-07 10:36         ` [patch v4 " David Rientjes
2014-05-07 10:36           ` David Rientjes
2014-05-09 22:03           ` Andrew Morton
2014-05-09 22:03             ` Andrew Morton
2014-05-07  2:22     ` [patch v3 5/6] mm, thp: avoid excessive compaction latency during fault David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:39       ` Mel Gorman
2014-05-07  9:39         ` Mel Gorman
2014-05-08  5:30       ` [patch -mm] mm, thp: avoid excessive compaction latency during fault fix David Rientjes
2014-05-08  5:30         ` David Rientjes
2014-05-13 10:00         ` Vlastimil Babka
2014-05-13 10:00           ` Vlastimil Babka
2014-05-22  2:49           ` David Rientjes
2014-05-22  2:49             ` David Rientjes
2014-05-22  8:43             ` Vlastimil Babka
2014-05-22  8:43               ` Vlastimil Babka
2014-05-07  2:22     ` [patch v3 6/6] mm, compaction: terminate async compaction when rescheduling David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:41       ` Mel Gorman
2014-05-07  9:41         ` Mel Gorman
2014-05-07 12:09       ` [PATCH v2 1/2] mm/compaction: do not count migratepages when unnecessary Vlastimil Babka
2014-05-07 12:09         ` Vlastimil Babka
2014-05-07 12:09         ` [PATCH v2 2/2] mm/compaction: avoid rescanning pageblocks in isolate_freepages Vlastimil Babka
2014-05-07 12:09           ` Vlastimil Babka
2014-05-07 21:47           ` David Rientjes
2014-05-07 21:47             ` David Rientjes
2014-05-07 22:06           ` Naoya Horiguchi
2014-05-08  5:28           ` Joonsoo Kim
2014-05-08  5:28             ` Joonsoo Kim
2014-05-12  9:09             ` Vlastimil Babka
2014-05-12  9:09               ` Vlastimil Babka
2014-05-13  1:15               ` Joonsoo Kim
2014-05-13  1:15                 ` Joonsoo Kim
2014-05-09 15:49           ` Michal Nazarewicz
2014-05-09 15:49             ` Michal Nazarewicz
2014-05-19 10:14           ` Vlastimil Babka
2014-05-19 10:14             ` Vlastimil Babka
2014-05-22  2:51             ` David Rientjes
2014-05-22  2:51               ` David Rientjes
2014-05-07 21:44         ` [PATCH v2 1/2] mm/compaction: do not count migratepages when unnecessary David Rientjes
2014-05-07 21:44           ` David Rientjes
2014-05-09 15:48         ` Michal Nazarewicz
2014-05-09 15:48           ` Michal Nazarewicz
2014-05-12  9:51           ` Vlastimil Babka
2014-05-12  9:51             ` Vlastimil Babka
2014-05-07 12:10       ` [patch v3 6/6] mm, compaction: terminate async compaction when rescheduling Vlastimil Babka
2014-05-07 12:10         ` Vlastimil Babka
2014-05-07 21:20       ` Andrew Morton
2014-05-07 21:20         ` Andrew Morton
2014-05-07 21:28         ` David Rientjes
2014-05-07 21:28           ` David Rientjes
2014-05-08  5:17       ` Joonsoo Kim
2014-05-08  5:17         ` Joonsoo Kim
2014-05-12 14:15         ` [PATCH] mm, compaction: properly signal and act upon lock and need_sched() contention Vlastimil Babka
2014-05-12 14:15           ` Vlastimil Babka
2014-05-12 15:34           ` Naoya Horiguchi
     [not found]           ` <1399908847-ouuxeneo@n-horiguchi@ah.jp.nec.com>
2014-05-12 15:45             ` Vlastimil Babka
2014-05-12 15:45               ` Vlastimil Babka
2014-05-12 15:53               ` Naoya Horiguchi
2014-05-12 20:28           ` David Rientjes
2014-05-12 20:28             ` David Rientjes
2014-05-13  8:50             ` Vlastimil Babka
2014-05-13  8:50               ` Vlastimil Babka
2014-05-13  0:44           ` Joonsoo Kim
2014-05-13  0:44             ` Joonsoo Kim
2014-05-13  8:54             ` Vlastimil Babka
2014-05-13  8:54               ` Vlastimil Babka
2014-05-15  2:21               ` Joonsoo Kim
2014-05-15  2:21                 ` Joonsoo Kim
2014-05-16  9:47           ` [PATCH v2] " Vlastimil Babka
2014-05-16  9:47             ` Vlastimil Babka
2014-05-16 17:33             ` Michal Nazarewicz
2014-05-16 17:33               ` Michal Nazarewicz
2014-05-19 23:37             ` Andrew Morton
2014-05-19 23:37               ` Andrew Morton
2014-05-21 14:13               ` Vlastimil Babka
2014-05-21 14:13                 ` Vlastimil Babka
2014-05-21 20:11                 ` Andrew Morton
2014-05-21 20:11                   ` Andrew Morton
2014-05-22  3:20             ` compaction is still too expensive for thp (was: [PATCH v2] mm, compaction: properly signal and act upon lock and need_sched() contention) David Rientjes
2014-05-22  3:20               ` David Rientjes
2014-05-22  8:10               ` compaction is still too expensive for thp Vlastimil Babka
2014-05-22  8:10                 ` Vlastimil Babka
2014-05-22  8:55                 ` David Rientjes
2014-05-22  8:55                   ` David Rientjes
2014-05-22 12:03                   ` Vlastimil Babka
2014-05-22 12:03                     ` Vlastimil Babka
2014-06-04  0:29                     ` [patch -mm 1/3] mm: rename allocflags_to_migratetype for clarity David Rientjes
2014-06-04  0:29                       ` David Rientjes
2014-06-04  0:29                       ` [patch -mm 2/3] mm, compaction: pass gfp mask to compact_control David Rientjes
2014-06-04  0:29                         ` David Rientjes
2014-06-04  0:30                       ` [patch -mm 3/3] mm, compaction: avoid compacting memory for thp if pageblock cannot become free David Rientjes
2014-06-04  0:30                         ` David Rientjes
2014-06-04 11:04                         ` Mel Gorman
2014-06-04 11:04                           ` Mel Gorman
2014-06-04 22:02                           ` David Rientjes
2014-06-04 22:02                             ` David Rientjes
2014-06-04 16:07                         ` Vlastimil Babka
2014-06-04 16:07                           ` Vlastimil Babka
2014-06-04 16:11               ` [RFC PATCH 1/6] mm, compaction: periodically drop lock and restore IRQs in scanners Vlastimil Babka
2014-06-04 16:11                 ` Vlastimil Babka
2014-06-04 16:11                 ` [RFC PATCH 2/6] mm, compaction: skip rechecks when lock was already held Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-04 23:46                   ` David Rientjes
2014-06-04 23:46                     ` David Rientjes
2014-06-04 16:11                 ` [RFC PATCH 3/6] mm, compaction: remember position within pageblock in free pages scanner Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-04 16:11                 ` [RFC PATCH 4/6] mm, compaction: skip buddy pages by their order in the migrate scanner Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-05  0:02                   ` David Rientjes
2014-06-05  0:02                     ` David Rientjes
2014-06-05  9:24                     ` Vlastimil Babka
2014-06-05  9:24                       ` Vlastimil Babka
2014-06-05 21:30                       ` David Rientjes
2014-06-05 21:30                         ` David Rientjes
2014-06-06  7:20                         ` Vlastimil Babka
2014-06-06  7:20                           ` Vlastimil Babka
2014-06-09  9:09                           ` David Rientjes
2014-06-09  9:09                             ` David Rientjes
2014-06-09 11:35                             ` Vlastimil Babka
2014-06-09 11:35                               ` Vlastimil Babka
2014-06-09 22:25                               ` David Rientjes
2014-06-09 22:25                                 ` David Rientjes
2014-06-10  7:26                                 ` Vlastimil Babka
2014-06-10  7:26                                   ` Vlastimil Babka
2014-06-10 23:54                                   ` David Rientjes
2014-06-10 23:54                                     ` David Rientjes
2014-06-11 12:18                                     ` Vlastimil Babka
2014-06-11 12:18                                       ` Vlastimil Babka
2014-06-12  0:21                                       ` David Rientjes
2014-06-12  0:21                                         ` David Rientjes
2014-06-12 11:56                                         ` Vlastimil Babka
2014-06-12 11:56                                           ` Vlastimil Babka
2014-06-12 21:48                                           ` David Rientjes
2014-06-12 21:48                                             ` David Rientjes
2014-06-04 16:11                 ` [RFC PATCH 5/6] mm, compaction: try to capture the just-created high-order freepage Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-04 16:11                 ` [RFC PATCH 6/6] mm, compaction: don't migrate in blocks that cannot be fully compacted in async direct compaction Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-05  0:08                   ` David Rientjes
2014-06-05  0:08                     ` David Rientjes
2014-06-05 15:38                     ` Vlastimil Babka
2014-06-05 15:38                       ` Vlastimil Babka
2014-06-05 21:38                       ` David Rientjes
2014-06-05 21:38                         ` David Rientjes
2014-06-06  7:33                         ` Vlastimil Babka
2014-06-06  7:33                           ` Vlastimil Babka
2014-06-09  9:06                           ` David Rientjes
2014-06-09  9:06                             ` David Rientjes
2014-06-12 12:18                             ` Vlastimil Babka
2014-06-12 12:18                               ` Vlastimil Babka
2014-06-04 23:39                 ` [RFC PATCH 1/6] mm, compaction: periodically drop lock and restore IRQs in scanners David Rientjes
2014-06-04 23:39                   ` David Rientjes
2014-06-05  9:05                   ` Vlastimil Babka
2014-06-05  9:05                     ` Vlastimil Babka
2014-05-22 23:49             ` [PATCH v2] mm, compaction: properly signal and act upon lock and need_sched() contention Kevin Hilman
2014-05-22 23:49               ` Kevin Hilman
2014-05-23  2:48               ` Shawn Guo
2014-05-23  2:48                 ` Shawn Guo
2014-05-23  2:48                 ` Shawn Guo
2014-05-23  8:34                 ` Vlastimil Babka
2014-05-23  8:34                   ` Vlastimil Babka
2014-05-23  8:34                   ` Vlastimil Babka
2014-05-23 10:49                   ` Shawn Guo
2014-05-23 10:49                     ` Shawn Guo
2014-05-23 10:49                     ` Shawn Guo
2014-05-23 15:07                   ` Kevin Hilman
2014-05-23 15:07                     ` Kevin Hilman
2014-05-23 15:07                     ` Kevin Hilman
2014-05-30 16:59                   ` Stephen Warren
2014-05-30 16:59                     ` Stephen Warren
2014-05-30 16:59                     ` Stephen Warren
2014-06-02 13:35                   ` Fabio Estevam
2014-06-02 13:35                     ` Fabio Estevam
2014-06-02 13:35                     ` Fabio Estevam
2014-06-02 14:33                     ` Vlastimil Babka [this message]
2014-06-02 14:33                       ` [PATCH -mm] mm, compaction: properly signal and act upon lock and need_sched() contention - fix Vlastimil Babka
2014-06-02 14:33                       ` Vlastimil Babka
2014-06-02 15:18                       ` Fabio Estevam
2014-06-02 15:18                         ` Fabio Estevam
2014-06-02 15:18                         ` Fabio Estevam
2014-06-02 20:09                       ` David Rientjes
2014-06-02 20:09                         ` David Rientjes
2014-06-02 20:09                         ` David Rientjes
2014-05-02 13:16 ` [patch 1/2] mm, migration: add destination page freeing callback Vlastimil Babka
2014-05-02 13:16   ` Vlastimil Babka

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