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-rw-r--r--include/linux/page-isolation.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index 3bdcab30ca4..105077aa768 100644
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -1,6 +1,11 @@
#ifndef __LINUX_PAGEISOLATION_H
#define __LINUX_PAGEISOLATION_H
+
+bool has_unmovable_pages(struct zone *zone, struct page *page, int count);
+void set_pageblock_migratetype(struct page *page, int migratetype);
+int move_freepages_block(struct zone *zone, struct page *page,
+ int migratetype);
/*
* Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE.
* If specified range includes migrate types other than MOVABLE or CMA,
@@ -10,7 +15,7 @@
* free all pages in the range. test_page_isolated() can be used for
* test it.
*/
-extern int
+int
start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
unsigned migratetype);
@@ -18,7 +23,7 @@ start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
* Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
* target range is [start_pfn, end_pfn)
*/
-extern int
+int
undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
unsigned migratetype);
@@ -30,8 +35,8 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn);
/*
* Internal functions. Changes pageblock's migrate type.
*/
-extern int set_migratetype_isolate(struct page *page);
-extern void unset_migratetype_isolate(struct page *page, unsigned migratetype);
+int set_migratetype_isolate(struct page *page);
+void unset_migratetype_isolate(struct page *page, unsigned migratetype);
#endif