1 files changed, 20 insertions, 18 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 628968c1ccf4..44c56049edf9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5679,7 +5679,8 @@ __alloc_contig_migrate_alloc(struct page *page, unsigned long private,
 }
 
 /* [start, end) must belong to a single zone. */
-static int __alloc_contig_migrate_range(unsigned long start, unsigned long end)
+static int __alloc_contig_migrate_range(struct compact_control *cc,
+                                        unsigned long start, unsigned long end)
 {
         /* This function is based on compact_zone() from compaction.c. */
 
@@ -5687,25 +5688,17 @@ static int __alloc_contig_migrate_range(unsigned long start, unsigned long end)
         unsigned int tries = 0;
         int ret = 0;
 
-        struct compact_control cc = {
-                .nr_migratepages = 0,
-                .order = -1,
-                .zone = page_zone(pfn_to_page(start)),
-                .sync = true,
-        };
-        INIT_LIST_HEAD(&cc.migratepages);
-
         migrate_prep_local();
 
-        while (pfn < end || !list_empty(&cc.migratepages)) {
+        while (pfn < end || !list_empty(&cc->migratepages)) {
                 if (fatal_signal_pending(current)) {
                         ret = -EINTR;
                         break;
                 }
 
-                if (list_empty(&cc.migratepages)) {
-                        cc.nr_migratepages = 0;
-                        pfn = isolate_migratepages_range(cc.zone, &cc,
+                if (list_empty(&cc->migratepages)) {
+                        cc->nr_migratepages = 0;
+                        pfn = isolate_migratepages_range(cc->zone, cc,
                                                          pfn, end);
                         if (!pfn) {
                                 ret = -EINTR;
@@ -5717,14 +5710,14 @@ static int __alloc_contig_migrate_range(unsigned long start, unsigned long end)
                         break;
                 }
 
-                reclaim_clean_pages_from_list(cc.zone, &cc.migratepages);
+                reclaim_clean_pages_from_list(cc->zone, &cc->migratepages);
 
-                ret = migrate_pages(&cc.migratepages,
+                ret = migrate_pages(&cc->migratepages,
                                     __alloc_contig_migrate_alloc,
                                     0, false, MIGRATE_SYNC);
         }
 
-        putback_lru_pages(&cc.migratepages);
+        putback_lru_pages(&cc->migratepages);
         return ret > 0 ? 0 : ret;
 }
 
@@ -5803,6 +5796,15 @@ int alloc_contig_range(unsigned long start, unsigned long end,
         unsigned long outer_start, outer_end;
         int ret = 0, order;
 
+        struct compact_control cc = {
+                .nr_migratepages = 0,
+                .order = -1,
+                .zone = page_zone(pfn_to_page(start)),
+                .sync = true,
+                .ignore_skip_hint = true,
+        };
+        INIT_LIST_HEAD(&cc.migratepages);
+
         /*
          * What we do here is we mark all pageblocks in range as
          * MIGRATE_ISOLATE.  Because pageblock and max order pages may
@@ -5832,7 +5834,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
         if (ret)
                 goto done;
 
-        ret = __alloc_contig_migrate_range(start, end);
+        ret = __alloc_contig_migrate_range(&cc, start, end);
         if (ret)
                 goto done;
 
@@ -5881,7 +5883,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
         __reclaim_pages(zone, GFP_HIGHUSER_MOVABLE, end-start);
 
         /* Grab isolated pages from freelists. */
-        outer_end = isolate_freepages_range(outer_start, end);
+        outer_end = isolate_freepages_range(&cc, outer_start, end);
         if (!outer_end) {
                 ret = -EBUSY;
                 goto done;