From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751952AbcACB0L (ORCPT ); Sat, 2 Jan 2016 20:26:11 -0500 Received: from mail.kernel.org ([198.145.29.136]:50434 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751047AbcACB0J (ORCPT ); Sat, 2 Jan 2016 20:26:09 -0500 From: Jaegeuk Kim To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim Subject: [PATCH 1/3] f2fs: check the page status filled from disk Date: Sat, 2 Jan 2016 17:26:04 -0800 Message-Id: <1451784366-14261-1-git-send-email-jaegeuk@kernel.org> X-Mailer: git-send-email 2.6.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org After reading a page, we need to check whether there is any error. Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 89a978c..11b2111 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -448,6 +448,14 @@ repeat: /* wait for read completion */ lock_page(page); + if (unlikely(!PageUptodate(page))) { + f2fs_put_page(page, 1); + return ERR_PTR(-EIO); + } + if (unlikely(page->mapping != mapping)) { + f2fs_put_page(page, 1); + goto repeat; + } } got_it: if (new_i_size && i_size_read(inode) < -- 2.6.3