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Btrfs: detect duplicate subvol names 

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-04-10 20:07:20 -04:00 committed by David Woodhouse
parent 2619ba1f0f
commit 2d13d8d065
1 changed files with 2 additions and 2 deletions
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4
fs/btrfs/super.c
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@ -1853,13 +1853,13 @@ static int btrfs_ioctl(struct inode *inode, struct file *filp, unsigned int
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
root_dirid = btrfs_root_dirid(
&root->fs_info->tree_root->root_item);
root_dirid = root->fs_info->sb->s_root->d_inode->i_ino,
mutex_lock(&root->fs_info->fs_mutex);
ret = btrfs_lookup_dir_item(NULL, root->fs_info->tree_root,
path, root_dirid,
vol_args.name, namelen, 0);
mutex_unlock(&root->fs_info->fs_mutex);
btrfs_free_path(path);
if (ret == 0)
return -EEXIST;