SNOOP_RWAIT
snp->snp_flags &= ~SNOOP_RWAIT;
snp->snp_flags |= SNOOP_RWAIT;
if (snp->snp_flags & SNOOP_RWAIT) {
snp->snp_flags &= ~SNOOP_RWAIT;
if (snp->snp_flags & SNOOP_RWAIT) {
snp->snp_flags &= ~SNOOP_RWAIT;