[PATCH 1/4] f2fs: fix to clear private data in page

[Chao Yu]

From: Chao Yu <yuch...@huawei.com>

Private data in page should be removed during ->releasepage or
->invalidatepage, otherwise garbage data would be remained in that page.

Signed-off-by: Chao Yu <yuch...@huawei.com>
---
 fs/f2fs/data.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 38ce5d6..888f178 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1723,6 +1723,7 @@ void f2fs_invalidate_page(struct page *page, unsigned int
offset,
        if (IS_ATOMIC_WRITTEN_PAGE(page))
                return;

+       set_page_private(page, 0);
        ClearPagePrivate(page);
 }

@@ -1736,6 +1737,7 @@ int f2fs_release_page(struct page *page, gfp_t wait)
        if (IS_ATOMIC_WRITTEN_PAGE(page))
                return 0;

+       set_page_private(page, 0);
        ClearPagePrivate(page);
        return 1;
 }
-- 
2.7.2