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-rw-r--r--mm/migrate.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index d917ac3207f5..35e454189966 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -883,8 +883,9 @@ out:
*
* The function returns after 10 attempts or if no pages
* are movable anymore because to has become empty
- * or no retryable pages exist anymore. All pages will be
- * returned to the LRU or freed.
+ * or no retryable pages exist anymore.
+ * Caller should call putback_lru_pages to return pages to the LRU
+ * or free list.
*
* Return: Number of pages not migrated or error code.
*/
@@ -931,8 +932,6 @@ out:
if (!swapwrite)
current->flags &= ~PF_SWAPWRITE;
- putback_lru_pages(from);
-
if (rc)
return rc;
@@ -1087,9 +1086,12 @@ set_status:
}
err = 0;
- if (!list_empty(&pagelist))
+ if (!list_empty(&pagelist)) {
err = migrate_pages(&pagelist, new_page_node,
(unsigned long)pm, 0);
+ if (err)
+ putback_lru_pages(&pagelist);
+ }
up_read(&mm->mmap_sem);
return err;