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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-02 12:01:13 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-03 01:28:17 -0500 |
| commit | 30eb43d31478f0fca28423623f3ec6af13f845fa (patch) | |
| tree | 7bcf4777cd9c4da6c5c1f9f44cb59bed73e9c64b /fs/nilfs2/namei.c | |
| parent | 6f88049caf56022c773272e03ddfa8cf79867059 (diff) | |
| download | op-kernel-dev-30eb43d31478f0fca28423623f3ec6af13f845fa.zip op-kernel-dev-30eb43d31478f0fca28423623f3ec6af13f845fa.tar.gz | |
nilfs2: i_nlink races in rename()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nilfs2/namei.c')
| -rw-r--r-- | fs/nilfs2/namei.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c index 9803427..161791d 100644 --- a/fs/nilfs2/namei.c +++ b/fs/nilfs2/namei.c @@ -397,7 +397,6 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry, new_de = nilfs_find_entry(new_dir, &new_dentry->d_name, &new_page); if (!new_de) goto out_dir; - inc_nlink(old_inode); nilfs_set_link(new_dir, new_de, new_page, old_inode); nilfs_mark_inode_dirty(new_dir); new_inode->i_ctime = CURRENT_TIME; @@ -411,13 +410,9 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (new_dir->i_nlink >= NILFS_LINK_MAX) goto out_dir; } - inc_nlink(old_inode); err = nilfs_add_link(new_dentry, old_inode); - if (err) { - drop_nlink(old_inode); - nilfs_mark_inode_dirty(old_inode); + if (err) goto out_dir; - } if (dir_de) { inc_nlink(new_dir); nilfs_mark_inode_dirty(new_dir); @@ -431,7 +426,6 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry, old_inode->i_ctime = CURRENT_TIME; nilfs_delete_entry(old_de, old_page); - drop_nlink(old_inode); if (dir_de) { nilfs_set_link(old_inode, dir_de, dir_page, new_dir); |
