SMR_SEQ_INCR
#define SMR_SEQ_MAX_DELTA (SMR_SEQ_INCR * 32)
#define SMR_LAZY_INCR (SMR_LAZY_GRACE * SMR_SEQ_INCR)
s_wr.seq += d * SMR_SEQ_INCR;
return (atomic_fetchadd_int(&s->s_wr.seq, SMR_SEQ_INCR) + SMR_SEQ_INCR);
return (smr_shared_current(s) + SMR_SEQ_INCR);