From 9055cba711891a6313232629cd6bbca7c901e07f Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Tue, 24 May 2011 13:06:12 -0700 Subject: vfs: clean up vfs_rename_dir Simplify control flow through vfs_rename_dir. Signed-off-by: Sage Weil Signed-off-by: Al Viro --- fs/namei.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) (limited to 'fs/namei.c') diff --git a/fs/namei.c b/fs/namei.c index 18c3293411f..ecb16d3727e 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2963,7 +2963,7 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { int error = 0; - struct inode *target; + struct inode *target = new_dentry->d_inode; /* * If we are going to change the parent - check write permissions, @@ -2979,20 +2979,24 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry, if (error) return error; - target = new_dentry->d_inode; if (target) mutex_lock(&target->i_mutex); - if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry)) - error = -EBUSY; - else - error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry); + + error = -EBUSY; + if (d_mountpoint(old_dentry) || d_mountpoint(new_dentry)) + goto out; + + error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry); + if (error) + goto out; + if (target) { - if (!error) { - target->i_flags |= S_DEAD; - dont_mount(new_dentry); - } - mutex_unlock(&target->i_mutex); + target->i_flags |= S_DEAD; + dont_mount(new_dentry); } +out: + if (target) + mutex_unlock(&target->i_mutex); if (!error) if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE)) d_move(old_dentry,new_dentry); -- cgit v1.2.3