vfs: new helper - vfs_ustat()
[linux-3.10.git] / mm / compaction.c
index 47f717f..899d956 100644 (file)
@@ -261,6 +261,7 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
        unsigned long last_pageblock_nr = 0, pageblock_nr;
        unsigned long nr_scanned = 0, nr_isolated = 0;
        struct list_head *migratelist = &cc->migratepages;
+       isolate_mode_t mode = ISOLATE_ACTIVE|ISOLATE_INACTIVE;
 
        /* Do not scan outside zone boundaries */
        low_pfn = max(cc->migrate_pfn, zone->zone_start_pfn);
@@ -348,9 +349,11 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
                        continue;
                }
 
+               if (!cc->sync)
+                       mode |= ISOLATE_CLEAN;
+
                /* Try isolate the page */
-               if (__isolate_lru_page(page,
-                               ISOLATE_ACTIVE|ISOLATE_INACTIVE, 0) != 0)
+               if (__isolate_lru_page(page, mode, 0) != 0)
                        continue;
 
                VM_BUG_ON(PageTransCompound(page));
@@ -579,7 +582,7 @@ out:
        return ret;
 }
 
-unsigned long compact_zone_order(struct zone *zone,
+static unsigned long compact_zone_order(struct zone *zone,
                                 int order, gfp_t gfp_mask,
                                 bool sync)
 {