COMMIT_PMAP
maptype = (tblk->xflag & COMMIT_PMAP) ? COMMIT_PMAP : COMMIT_PWMAP;
if (maptype == COMMIT_PMAP || maptype == COMMIT_PWMAP) {
assert(flag != COMMIT_PMAP);
tblk->xflag |= COMMIT_PMAP;
tblk->xflag |= COMMIT_PMAP;