From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Yu Subject: [PATCH 1/4] f2fs: fix to clear private data in page Date: Thu, 28 Apr 2016 23:13:48 +0800 Message-ID: <572228AC.30109@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1avndt-0006Ii-2d for linux-f2fs-devel@lists.sourceforge.net; Thu, 28 Apr 2016 15:14:13 +0000 Received: from mail.kernel.org ([198.145.29.136]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1avndl-00027X-NH for linux-f2fs-devel@lists.sourceforge.net; Thu, 28 Apr 2016 15:14:13 +0000 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: Jaegeuk Kim Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net From: Chao Yu 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 --- 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 ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z