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f2fs: fix to clear private data in page

PATCH New Chao Yu 1 participant 1 message Apr 29, 2016 F2FS file system

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Chao Yu

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

From: Chao Yu <[email protected]>

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 <[email protected]>
---
 fs/f2fs/data.c | 2 ++
 1 file changed, 2 insertions(+)
fs/f2fs/data.c +2 -0
index 38ce5d6..888f178 100644
@@ -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;
 }
Signature · 1 line
2.7.2