From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaegeuk Kim Subject: [PATCH 2/4] f2fs: inject to produce some orphan inodes Date: Thu, 26 May 2016 17:25:22 -0700 Message-ID: <1464308724-71070-2-git-send-email-jaegeuk@kernel.org> References: <1464308724-71070-1-git-send-email-jaegeuk@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1b65ap-00033z-Te for linux-f2fs-devel@lists.sourceforge.net; Fri, 27 May 2016 00:25:35 +0000 Received: from mail.kernel.org ([198.145.29.136]) by sog-mx-2.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1b65ap-0000C1-5J for linux-f2fs-devel@lists.sourceforge.net; Fri, 27 May 2016 00:25:35 +0000 In-Reply-To: <1464308724-71070-1-git-send-email-jaegeuk@kernel.org> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Jaegeuk Kim Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 3 +++ fs/f2fs/inode.c | 5 +++++ fs/f2fs/super.c | 1 + 3 files changed, 9 insertions(+) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 5daba19..c4697b7 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -45,6 +45,7 @@ enum { FAULT_ORPHAN, FAULT_BLOCK, FAULT_DIR_DEPTH, + FAULT_EVICT_INODE, FAULT_MAX, }; @@ -74,6 +75,8 @@ static inline bool time_to_inject(int type) return false; else if (type == FAULT_DIR_DEPTH && !IS_FAULT_SET(type)) return false; + else if (type == FAULT_EVICT_INODE && !IS_FAULT_SET(type)) + return false; atomic_inc(&f2fs_fault.inject_ops); if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) { diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index bdd814d..11cb60a 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -345,6 +345,11 @@ void f2fs_evict_inode(struct inode *inode) if (inode->i_nlink || is_bad_inode(inode)) goto no_delete; +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(FAULT_EVICT_INODE)) + goto no_delete; +#endif + sb_start_intwrite(inode->i_sb); set_inode_flag(inode, FI_NO_ALLOC); i_size_write(inode, 0); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index a5b5739..27f76819e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -49,6 +49,7 @@ char *fault_name[FAULT_MAX] = { [FAULT_ORPHAN] = "orphan", [FAULT_BLOCK] = "no more block", [FAULT_DIR_DEPTH] = "too big dir depth", + [FAULT_EVICT_INODE] = "evict_inode fail", }; static void f2fs_build_fault_attr(unsigned int rate) -- 2.6.3 ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e