X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=mm%2Fpage_isolation.c;h=064b7fb6e0b5f01c07eb4035fef84731be6ed4bf;hb=c01d5b300774d130a24d787825b01eb24e6e20cb;hp=c4f568206544b616969d59631017d51da0d46a85;hpb=fbbeb39183e08120b4116cdbadde91385f30d4f3;p=cascardo%2Flinux.git

diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index c4f568206544..064b7fb6e0b5 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -7,6 +7,7 @@
 #include <linux/pageblock-flags.h>
 #include <linux/memory.h>
 #include <linux/hugetlb.h>
+#include <linux/page_owner.h>
 #include "internal.h"
 
 #define CREATE_TRACE_POINTS
@@ -80,7 +81,7 @@ static void unset_migratetype_isolate(struct page *page, unsigned migratetype)
 {
 	struct zone *zone;
 	unsigned long flags, nr_pages;
-	struct page *isolated_page = NULL;
+	bool isolated_page = false;
 	unsigned int order;
 	unsigned long page_idx, buddy_idx;
 	struct page *buddy;
@@ -108,9 +109,7 @@ static void unset_migratetype_isolate(struct page *page, unsigned migratetype)
 			if (pfn_valid_within(page_to_pfn(buddy)) &&
 			    !is_migrate_isolate_page(buddy)) {
 				__isolate_free_page(page, order);
-				kernel_map_pages(page, (1 << order), 1);
-				set_page_refcounted(page);
-				isolated_page = page;
+				isolated_page = true;
 			}
 		}
 	}
@@ -128,8 +127,10 @@ static void unset_migratetype_isolate(struct page *page, unsigned migratetype)
 	zone->nr_isolate_pageblock--;
 out:
 	spin_unlock_irqrestore(&zone->lock, flags);
-	if (isolated_page)
-		__free_pages(isolated_page, order);
+	if (isolated_page) {
+		post_alloc_hook(page, order, __GFP_MOVABLE);
+		__free_pages(page, order);
+	}
 }
 
 static inline struct page *
@@ -246,6 +247,7 @@ __test_page_isolated_in_pageblock(unsigned long pfn, unsigned long end_pfn,
 	return pfn;
 }
 
+/* Caller should ensure that requested range is in a single zone */
 int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
 			bool skip_hwpoisoned_pages)
 {
@@ -288,13 +290,10 @@ struct page *alloc_migrate_target(struct page *page, unsigned long private,
 	 * accordance with memory policy of the user process if possible. For
 	 * now as a simple work-around, we use the next node for destination.
 	 */
-	if (PageHuge(page)) {
-		int node = next_online_node(page_to_nid(page));
-		if (node == MAX_NUMNODES)
-			node = first_online_node;
+	if (PageHuge(page))
 		return alloc_huge_page_node(page_hstate(compound_head(page)),
-					    node);
-	}
+					    next_node_in(page_to_nid(page),
+							 node_online_map));
 
 	if (PageHighMem(page))
 		gfp_mask |= __GFP_HIGHMEM;