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-rw-r--r--mm/page_isolation.c26
1 files changed, 2 insertions, 24 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 9d2264ea460..383bdbb98b0 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -8,28 +8,6 @@
#include <linux/memory.h>
#include "internal.h"
-/* called while holding zone->lock */
-static void set_pageblock_isolate(struct page *page)
-{
- if (get_pageblock_migratetype(page) == MIGRATE_ISOLATE)
- return;
-
- set_pageblock_migratetype(page, MIGRATE_ISOLATE);
- page_zone(page)->nr_pageblock_isolate++;
-}
-
-/* called while holding zone->lock */
-static void restore_pageblock_isolate(struct page *page, int migratetype)
-{
- struct zone *zone = page_zone(page);
- if (WARN_ON(get_pageblock_migratetype(page) != MIGRATE_ISOLATE))
- return;
-
- BUG_ON(zone->nr_pageblock_isolate <= 0);
- set_pageblock_migratetype(page, migratetype);
- zone->nr_pageblock_isolate--;
-}
-
int set_migratetype_isolate(struct page *page, bool skip_hwpoisoned_pages)
{
struct zone *zone;
@@ -80,7 +58,7 @@ out:
unsigned long nr_pages;
int migratetype = get_pageblock_migratetype(page);
- set_pageblock_isolate(page);
+ set_pageblock_migratetype(page, MIGRATE_ISOLATE);
nr_pages = move_freepages_block(zone, page, MIGRATE_ISOLATE);
__mod_zone_freepage_state(zone, -nr_pages, migratetype);
@@ -103,7 +81,7 @@ void unset_migratetype_isolate(struct page *page, unsigned migratetype)
goto out;
nr_pages = move_freepages_block(zone, page, migratetype);
__mod_zone_freepage_state(zone, nr_pages, migratetype);
- restore_pageblock_isolate(page, migratetype);
+ set_pageblock_migratetype(page, migratetype);
out:
spin_unlock_irqrestore(&zone->lock, flags);
}