The patch titled
Subject: mm: compaction: push isolate search base of compact control one pfn ahead
has been removed from the -mm tree. Its filename was
mm-compaction-push-isolate-search-base-of-compact-control-one-pfn-ahead.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Hillf Danton <dhillf@xxxxxxxxx>
Subject: mm: compaction: push isolate search base of compact control one pfn ahead
After isolated the current pfn will no longer be scanned and isolated if
the next round is necessary, so push the isolate_migratepages search base
of the given compact_control one step ahead.
Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
Reviewed-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/compaction.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN mm/compaction.c~mm-compaction-push-isolate-search-base-of-compact-control-one-pfn-ahead mm/compaction.c
--- a/mm/compaction.c~mm-compaction-push-isolate-search-base-of-compact-control-one-pfn-ahead
+++ a/mm/compaction.c
@@ -365,8 +365,10 @@ static isolate_migrate_t isolate_migrate
nr_isolated++;
/* Avoid isolating too much */
- if (cc->nr_migratepages == COMPACT_CLUSTER_MAX)
+ if (cc->nr_migratepages == COMPACT_CLUSTER_MAX) {
+ ++low_pfn;
break;
+ }
}
acct_isolated(zone, cc);
_
Patches currently in -mm which might be from dhillf@xxxxxxxxx are
origin.patch
linux-next.patch
mm-hugetlb-undo-change-to-page-mapcount-in-fault-handler.patch
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