---

yaml --- r: 164427 b: refs/heads/master c: 2f66a68 h: refs/heads/master i: 164425: 3881716 164423: 9839abf v: v3
git-mirror · Sep 22, 2009 · 82fc59c · 82fc59c
1 parent 49631bd
commit 82fc59c
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Showing 2 changed files with 15 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fe1ff49d0d1c30254dbfc84c3786eb538e0cc7d1
+refs/heads/master: 2f66a68f3fac2e94da360c342ff78ab45553f86c
diff --git a/trunk/mm/page_alloc.c b/trunk/mm/page_alloc.c
@@ -783,6 +783,17 @@ static int move_freepages_block(struct zone *zone, struct page *page,
 	return move_freepages(zone, start_page, end_page, migratetype);
 }
 
+static void change_pageblock_range(struct page *pageblock_page,
+					int start_order, int migratetype)
+{
+	int nr_pageblocks = 1 << (start_order - pageblock_order);
+
+	while (nr_pageblocks--) {
+		set_pageblock_migratetype(pageblock_page, migratetype);
+		pageblock_page += pageblock_nr_pages;
+	}
+}
+
 /* Remove an element from the buddy allocator from the fallback list */
 static inline struct page *
 __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
@@ -836,8 +847,9 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
 			list_del(&page->lru);
 			rmv_page_order(page);
 
-			if (current_order == pageblock_order)
-				set_pageblock_migratetype(page,
+			/* Take ownership for orders >= pageblock_order */
+			if (current_order >= pageblock_order)
+				change_pageblock_range(page, current_order,
 							start_migratetype);
 
 			expand(zone, page, order, current_order, area, migratetype);