gfs2_internal_read
ssize_t gfs2_internal_read(struct gfs2_inode *ip,
error = gfs2_internal_read(ip, (char *)&q, &pos, sizeof(q));
err = gfs2_internal_read(ip, (char *)&q, &loc, sizeof(q));
error = gfs2_internal_read(ip, buf, &pos,
error = gfs2_internal_read(ip, (char *)&buf, &pos,