Linux 3.1-git4 (upstream dc47d3810cdc)

1 files changed, 0 insertions, 54 deletions

diff --git a/0001-mm-vmscan-Limit-direct-reclaim-for-higher-order-allo.patch b/0001-mm-vmscan-Limit-direct-reclaim-for-higher-order-allo.patch
deleted file mode 100644
index 77777f01..00000000
--- a/0001-mm-vmscan-Limit-direct-reclaim-for-higher-order-allo.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-From 6b7025ea927d290a59d2772828435c1893f0267f Mon Sep 17 00:00:00 2001
-From: Rik van Riel <riel@redhat.com>
-Date: Fri, 7 Oct 2011 16:17:22 +0100
-Subject: [PATCH 1/2] mm: vmscan: Limit direct reclaim for higher order
- allocations
-
-When suffering from memory fragmentation due to unfreeable pages,
-THP page faults will repeatedly try to compact memory.  Due to the
-unfreeable pages, compaction fails.
-
-Needless to say, at that point page reclaim also fails to create
-free contiguous 2MB areas.  However, that doesn't stop the current
-code from trying, over and over again, and freeing a minimum of 4MB
-(2UL << sc->order pages) at every single invocation.
-
-This resulted in my 12GB system having 2-3GB free memory, a
-corresponding amount of used swap and very sluggish response times.
-
-This can be avoided by having the direct reclaim code not reclaim from
-zones that already have plenty of free memory available for compaction.
-
-If compaction still fails due to unmovable memory, doing additional
-reclaim will only hurt the system, not help.
-
-Signed-off-by: Rik van Riel <riel@redhat.com>
-Signed-off-by: Mel Gorman <mgorman@suse.de>
----
- mm/vmscan.c |   10 ++++++++++
- 1 files changed, 10 insertions(+), 0 deletions(-)
-
-diff --git a/mm/vmscan.c b/mm/vmscan.c
-index 6072d74..8c03534 100644
---- a/mm/vmscan.c
-+++ b/mm/vmscan.c
-@@ -2022,6 +2022,16 @@ static void shrink_zones(int priority, struct zonelist *zonelist,
- 				continue;
- 			if (zone->all_unreclaimable && priority != DEF_PRIORITY)
- 				continue;	/* Let kswapd poll it */
-+			if (COMPACTION_BUILD) {
-+				/*
-+				 * If we already have plenty of memory free
-+				 * for compaction, don't free any more.
-+				 */
-+				if (sc->order > PAGE_ALLOC_COSTLY_ORDER &&
-+					(compaction_suitable(zone, sc->order) ||
-+					 compaction_deferred(zone)))
-+					continue;
-+			}
- 			/*
- 			 * This steals pages from memory cgroups over softlimit
- 			 * and returns the number of reclaimed pages and
--- 
-1.7.6.4
-