From: Vlastimil Babka <vbabka@suse.cz> To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>, Greg Thelen <gthelen@google.com>, Vlastimil Babka <vbabka@suse.cz>, Minchan Kim <minchan@kernel.org>, Mel Gorman <mgorman@suse.de>, Michal Nazarewicz <mina86@mina86.com>, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>, Christoph Lameter <cl@linux.com>, Rik van Riel <riel@redhat.com>, David Rientjes <rientjes@google.com> Subject: [RFC PATCH 2/6] mm, compaction: skip rechecks when lock was already held Date: Wed, 4 Jun 2014 18:11:46 +0200 [thread overview] Message-ID: <1401898310-14525-2-git-send-email-vbabka@suse.cz> (raw) In-Reply-To: <1401898310-14525-1-git-send-email-vbabka@suse.cz> Compaction scanners try to lock zone locks as late as possible by checking many page or pageblock properties opportunistically without lock and skipping them if not unsuitable. For pages that pass the initial checks, some properties have to be checked again safely under lock. However, if the lock was already held from a previous iteration in the initial checks, the rechecks are unnecessary. This patch therefore skips the rechecks when the lock was already held. This is now possible to do, since we don't (potentially) drop and reacquire the lock between the initial checks and the safe rechecks anymore. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Cc: Minchan Kim <minchan@kernel.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Christoph Lameter <cl@linux.com> Cc: Rik van Riel <riel@redhat.com> Cc: David Rientjes <rientjes@google.com> --- mm/compaction.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/mm/compaction.c b/mm/compaction.c index f0fd4b5..27c73d7 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -332,6 +332,16 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, goto isolate_fail; /* + * If we already hold the lock, we can skip some rechecking. + * Note that if we hold the lock now, checked_pageblock was + * already set in some previous iteration (or strict is true), + * so it is correct to skip the suitable migration target + * recheck as well. + */ + if (locked) + goto skip_recheck; + + /* * The zone lock must be held to isolate freepages. * Unfortunately this is a very coarse lock and can be * heavily contended if there are parallel allocations @@ -339,9 +349,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, * spin on the lock and we acquire the lock as late as * possible. */ - if (!locked) - locked = compact_trylock_irqsave(&cc->zone->lock, - &flags, cc); + locked = compact_trylock_irqsave(&cc->zone->lock, &flags, cc); if (!locked) break; @@ -361,6 +369,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, if (!PageBuddy(page)) goto isolate_fail; +skip_recheck: /* Found a free page, break it into order-0 pages */ isolated = split_free_page(page); total_isolated += isolated; @@ -671,10 +680,11 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc, page_count(page) > page_mapcount(page)) continue; - /* If the lock is not held, try to take it */ - if (!locked) - locked = compact_trylock_irqsave(&zone->lru_lock, - &flags, cc); + /* If we already hold the lock, we can skip some rechecking */ + if (locked) + goto skip_recheck; + + locked = compact_trylock_irqsave(&zone->lru_lock, &flags, cc); if (!locked) break; @@ -686,6 +696,7 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc, continue; } +skip_recheck: lruvec = mem_cgroup_page_lruvec(page, zone); /* Try isolate the page */ -- 1.8.4.5
WARNING: multiple messages have this Message-ID (diff)
From: Vlastimil Babka <vbabka@suse.cz> To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>, Greg Thelen <gthelen@google.com>, Vlastimil Babka <vbabka@suse.cz>, Minchan Kim <minchan@kernel.org>, Mel Gorman <mgorman@suse.de>, Michal Nazarewicz <mina86@mina86.com>, Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>, Christoph Lameter <cl@linux.com>, Rik van Riel <riel@redhat.com>, David Rientjes <rientjes@google.com> Subject: [RFC PATCH 2/6] mm, compaction: skip rechecks when lock was already held Date: Wed, 4 Jun 2014 18:11:46 +0200 [thread overview] Message-ID: <1401898310-14525-2-git-send-email-vbabka@suse.cz> (raw) In-Reply-To: <1401898310-14525-1-git-send-email-vbabka@suse.cz> Compaction scanners try to lock zone locks as late as possible by checking many page or pageblock properties opportunistically without lock and skipping them if not unsuitable. For pages that pass the initial checks, some properties have to be checked again safely under lock. However, if the lock was already held from a previous iteration in the initial checks, the rechecks are unnecessary. This patch therefore skips the rechecks when the lock was already held. This is now possible to do, since we don't (potentially) drop and reacquire the lock between the initial checks and the safe rechecks anymore. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Cc: Minchan Kim <minchan@kernel.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Christoph Lameter <cl@linux.com> Cc: Rik van Riel <riel@redhat.com> Cc: David Rientjes <rientjes@google.com> --- mm/compaction.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/mm/compaction.c b/mm/compaction.c index f0fd4b5..27c73d7 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -332,6 +332,16 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, goto isolate_fail; /* + * If we already hold the lock, we can skip some rechecking. + * Note that if we hold the lock now, checked_pageblock was + * already set in some previous iteration (or strict is true), + * so it is correct to skip the suitable migration target + * recheck as well. + */ + if (locked) + goto skip_recheck; + + /* * The zone lock must be held to isolate freepages. * Unfortunately this is a very coarse lock and can be * heavily contended if there are parallel allocations @@ -339,9 +349,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, * spin on the lock and we acquire the lock as late as * possible. */ - if (!locked) - locked = compact_trylock_irqsave(&cc->zone->lock, - &flags, cc); + locked = compact_trylock_irqsave(&cc->zone->lock, &flags, cc); if (!locked) break; @@ -361,6 +369,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, if (!PageBuddy(page)) goto isolate_fail; +skip_recheck: /* Found a free page, break it into order-0 pages */ isolated = split_free_page(page); total_isolated += isolated; @@ -671,10 +680,11 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc, page_count(page) > page_mapcount(page)) continue; - /* If the lock is not held, try to take it */ - if (!locked) - locked = compact_trylock_irqsave(&zone->lru_lock, - &flags, cc); + /* If we already hold the lock, we can skip some rechecking */ + if (locked) + goto skip_recheck; + + locked = compact_trylock_irqsave(&zone->lru_lock, &flags, cc); if (!locked) break; @@ -686,6 +696,7 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc, continue; } +skip_recheck: lruvec = mem_cgroup_page_lruvec(page, zone); /* Try isolate the page */ -- 1.8.4.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2014-06-04 16:12 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 ` Vlastimil Babka [this message] 2014-06-04 16:11 ` [RFC PATCH 2/6] mm, compaction: skip rechecks when lock was already held 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 ` [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 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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