gfs2_lookupi
return d_obtain_alias(gfs2_lookupi(d_inode(child), &gfs2_qdotdot, 1));
tmp = gfs2_lookupi(dir, &gfs2_qdotdot, 1);
inode = gfs2_lookupi(dip, &qstr, 1);
inode = gfs2_lookupi(dir, &dentry->d_name, 0);
struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);