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-rw-r--r--mm/page_isolation.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 63a3db10a8c0..ad3aa7ac59a7 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -29,10 +29,12 @@ static int set_migratetype_isolate(struct page *page, int migratetype, int isol_
/*
* We assume the caller intended to SET migrate type to isolate.
* If it is already set, then someone else must have raced and
- * set it before us. Return -EBUSY
+ * set it before us.
*/
- if (is_migrate_isolate_page(page))
- goto out;
+ if (is_migrate_isolate_page(page)) {
+ spin_unlock_irqrestore(&zone->lock, flags);
+ return -EBUSY;
+ }
/*
* FIXME: Now, memory hotplug doesn't call shrink_slab() by itself.
@@ -52,7 +54,6 @@ static int set_migratetype_isolate(struct page *page, int migratetype, int isol_
ret = 0;
}
-out:
spin_unlock_irqrestore(&zone->lock, flags);
if (!ret) {
drain_all_pages(zone);