nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
{
	struct inode *inode = d_inode(old_dentry);
	int error;

	dfprintk(VFS, "NFS: link(%pd2 -> %pd2)\n",
		old_dentry, dentry);

	trace_nfs_link_enter(inode, dir, dentry);
	d_drop(dentry);
	if (S_ISREG(inode->i_mode))
		nfs_sync_inode(inode);
	error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);
	if (error == 0) {
		nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
		ihold(inode);
		d_add(dentry, inode);
	}
	trace_nfs_link_exit(inode, dir, dentry, error);
	return error;
}
Unknown