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Wong" , Ted Tso , Jaegeuk Kim , , , linux-f2fs-devel@lists.sourceforge.net, Jan Kara , stable@vger.kernel.org Subject: [PATCH v2 1/6] ext4: Remove ext4 locking of moved directory Date: Thu, 1 Jun 2023 12:58:21 +0200 Message-Id: <20230601105830.13168-1-jack@suse.cz> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230601104525.27897-1-jack@suse.cz> References: <20230601104525.27897-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1467; i=jack@suse.cz; h=from:subject; bh=XV5CJdcSgiBkW1x4p8thTfL0TVuanLRiOHdfMG5wLnM=; b=owGbwMvMwME4Z+4qdvsUh5uMp9WSGFIqKs8qZLmlpvw48TWHpdA694OFxWeVaLv2zZwfJjl4Hzj9 Ne5aJ6MxCwMjB4OsmCLL6siL2tfmGXVtDdWQgRnEygQyhYGLUwAmwsDH/k/X8e7htO0Jitt7fN9Nbv TO+Z9oc7PXwOSov8BXnTima2z8heFKVlyyGr3ZDFzWDhYWWVsvW5/osepYKtf7f+qeL+2iXDW6PHl/ BJe4FApfulAz+VFo/28bwyiOltbZUsu/F73dsUDVlfceS/PXqbXTc/7Jz4j7IN4W9lF5s77Mmc0CRn eD699+b5rwIO7By67vRpuFF9/WCLr1MrnaXW+Vo8zUHfxum5/MmiJjFLLxRNTFjU92sy9d5VlS1rmI V1E38gt76rL95UtsE6ZMcsjxWrd/cbFb9KQDS5eVn0iZuXQTb7Wg1KMA1dd7+g47T4h11IluPa6Q1l ARMPl6hU2PbNGaPHe5kr7CeFshAA== X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Remove locking of moved directory in ext4_rename2(). We will take care of it in VFS instead. This effectively reverts commit 0813299c586b ("ext4: Fix possible corruption when moving a directory") and followup fixes. CC: Ted Tso CC: stable@vger.kernel.org Signed-off-by: Jan Kara --- fs/ext4/namei.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 45b579805c95..0caf6c730ce3 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -3834,19 +3834,10 @@ static int ext4_rename(struct mnt_idmap *idmap, struct inode *old_dir, return retval; } - /* - * We need to protect against old.inode directory getting converted - * from inline directory format into a normal one. - */ - if (S_ISDIR(old.inode->i_mode)) - inode_lock_nested(old.inode, I_MUTEX_NONDIR2); - old.bh = ext4_find_entry(old.dir, &old.dentry->d_name, &old.de, &old.inlined); - if (IS_ERR(old.bh)) { - retval = PTR_ERR(old.bh); - goto unlock_moved_dir; - } + if (IS_ERR(old.bh)) + return PTR_ERR(old.bh); /* * Check for inode number is _not_ due to possible IO errors. @@ -4043,10 +4034,6 @@ static int ext4_rename(struct mnt_idmap *idmap, struct inode *old_dir, brelse(old.bh); brelse(new.bh); -unlock_moved_dir: - if (S_ISDIR(old.inode->i_mode)) - inode_unlock(old.inode); - return retval; } -- 2.35.3