From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753792AbcC3UZE (ORCPT ); Wed, 30 Mar 2016 16:25:04 -0400 Received: from mail.kernel.org ([198.145.29.136]:54370 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752673AbcC3UZB (ORCPT ); Wed, 30 Mar 2016 16:25:01 -0400 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 1/2] f2fs: use PGP_LOCK to check its truncation Date: Wed, 30 Mar 2016 13:24:55 -0700 Message-Id: <1459369496-61911-1-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 Previously, after trylock_page is succeeded, it doesn't check its mapping. In order to fix that, we can just give PGP_LOCK to pagecache_get_page. Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 118321b..2f2810e 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1202,13 +1202,10 @@ static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) if (!inode) return; - page = pagecache_get_page(inode->i_mapping, 0, FGP_NOWAIT, 0); + page = pagecache_get_page(inode->i_mapping, 0, FGP_LOCK|FGP_NOWAIT, 0); if (!page) goto iput_out; - if (!trylock_page(page)) - goto release_out; - if (!PageUptodate(page)) goto page_out; -- 2.6.3