[PATCH] mm: Remove unused has_isolate_pageblock

[Luoxi Li]

has_isolate_pageblock() has been unused since commit 55612e80e722
("mm: page_alloc: close migratetype race between freeing and stealing")

Remove it.

Signed-off-by: Luoxi Li <kaixa@xxxxxxxxxxxx>
---
 include/linux/page-isolation.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index c16db0067090..73dc2c1841ec 100644
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -3,10 +3,6 @@
 #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;
@@ -16,10 +12,6 @@ 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;
-- 
2.34.1