PGA_MODIFIED
attrs |= (PGA_REFERENCED|PGA_MODIFIED);
else if ((attrs & PGA_MODIFIED) == 0)
if (md->pvh_listx & PGA_MODIFIED) {
md->pvh_listx &= ~PGA_MODIFIED;
md->pvh_listx |= (PGA_REFERENCED|PGA_MODIFIED);
#define PGA_ATTRS (PGA_MODIFIED | PGA_REFERENCED)
(((pg)->mdpage.pvh_listx & PGA_MODIFIED) != 0)