__gfs2_free_blocks
__gfs2_free_blocks(ip, rgd, bstart, (u32)blen, meta);
__gfs2_free_blocks(ip, rgd, bstart, (u32)blen, meta);
__gfs2_free_blocks(ip, rgd, bstart, blen, 1);
void __gfs2_free_blocks(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,