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nilfs2: i_nlink races in rename() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-03-02 12:01:13 -05:00
parent 6f88049caf
commit 30eb43d314
1 changed files with 1 additions and 7 deletions
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8
fs/nilfs2/namei.c
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@ -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);