From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cn.fujitsu.com ([222.73.24.84]:9719 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1757352Ab3A1MeN (ORCPT ); Mon, 28 Jan 2013 07:34:13 -0500 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id r0SCYA3O007382 for ; Mon, 28 Jan 2013 20:34:11 +0800 Message-ID: <5106706F.5030803@cn.fujitsu.com> Date: Mon, 28 Jan 2013 20:34:55 +0800 From: Miao Xie Reply-To: miaox@cn.fujitsu.com MIME-Version: 1.0 To: Linux Btrfs Subject: [PATCH 1/3] Btrfs: fix wrong sync_writers decrement in btrfs_file_aio_write() Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: If the checks at the beginning of btrfs_file_aio_write() fail, we needn't decrease ->sync_writers, because we have not increased it. Fix it. Signed-off-by: Miao Xie --- fs/btrfs/file.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 20452c1..370ed5b 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1595,9 +1595,10 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, if (err < 0 && num_written > 0) num_written = err; } -out: + if (sync) atomic_dec(&BTRFS_I(inode)->sync_writers); +out: sb_end_write(inode->i_sb); current->backing_dev_info = NULL; return num_written ? num_written : err; -- 1.6.5.2