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-rw-r--r--include/linux/page-isolation.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index 3fff8e774067..2dc1e1697b45 100644
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -2,6 +2,10 @@
#define __LINUX_PAGEISOLATION_H
#ifdef CONFIG_MEMORY_ISOLATION
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+ return zone->nr_isolate_pageblock;
+}
static inline bool is_migrate_isolate_page(struct page *page)
{
return get_pageblock_migratetype(page) == MIGRATE_ISOLATE;
@@ -11,6 +15,10 @@ static inline bool is_migrate_isolate(int migratetype)
return migratetype == MIGRATE_ISOLATE;
}
#else
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+ return false;
+}
static inline bool is_migrate_isolate_page(struct page *page)
{
return false;
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