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-rw-r--r--mm/hugetlb.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3a5aeb37c11..ffbdfc86aed 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2,7 +2,6 @@
* Generic hugetlb support.
* (C) William Irwin, April 2004
*/
-#include <linux/gfp.h>
#include <linux/list.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -18,6 +17,7 @@
#include <linux/mutex.h>
#include <linux/bootmem.h>
#include <linux/sysfs.h>
+#include <linux/slab.h>
#include <asm/page.h>
#include <asm/pgtable.h>
@@ -546,6 +546,7 @@ static void free_huge_page(struct page *page)
mapping = (struct address_space *) page_private(page);
set_page_private(page, 0);
+ page->mapping = NULL;
BUG_ON(page_count(page));
INIT_LIST_HEAD(&page->lru);
@@ -2447,8 +2448,10 @@ retry:
spin_lock(&inode->i_lock);
inode->i_blocks += blocks_per_huge_page(h);
spin_unlock(&inode->i_lock);
- } else
+ } else {
lock_page(page);
+ page->mapping = HUGETLB_POISON;
+ }
}
/*