static int sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
static void *sysv_follow_link(struct dentry *dentry, struct nameidata *nd)
static int sysv_follow_link(struct dentry *dentry, struct nameidata *nd){	nd_set_link(nd, (char *)SYSV_I(dentry->d_inode)->i_data);	return 0;}