L2LOGPSIZE
(L2LOGPSIZE - sb->s_blocksize_bits);
ASSERT(L2LOGPSIZE >= sb->s_blocksize_bits);
log->l2bsize = L2LOGPSIZE;
log->logsize = (log->size - 2) << L2LOGPSIZE;
bp->l_blkno = log->base + (pn << (L2LOGPSIZE - log->l2bsize));
log->base + (bp->l_pn << (L2LOGPSIZE - log->l2bsize));
log->base + (bp->l_pn << (L2LOGPSIZE - log->l2bsize));
log->clsn = (bp->l_pn << L2LOGPSIZE) + bp->l_ceor;
lsn = (log->page << L2LOGPSIZE) + dstoffset;
log->size = newLogSize >> (L2LOGPSIZE - sb->s_blocksize_bits);