_PAGE_SILENT_WRITE
#define __WRITEABLE (_PAGE_SILENT_WRITE | _PAGE_WRITE | _PAGE_MODIFIED)
pte.pte_low &= ~_PAGE_SILENT_WRITE;
pte.pte_high &= ~_PAGE_SILENT_WRITE;
pte.pte_low &= ~_PAGE_SILENT_WRITE;
pte.pte_high &= ~_PAGE_SILENT_WRITE;
pte.pte_low |= _PAGE_SILENT_WRITE;
pte.pte_high |= _PAGE_SILENT_WRITE;
pte.pte_low |= _PAGE_SILENT_WRITE;
pte.pte_high |= _PAGE_SILENT_WRITE;
pte_val(pte) &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
pte_val(pte) &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
pte_val(pte) |= _PAGE_SILENT_WRITE;
pte_val(pte) |= _PAGE_SILENT_WRITE;
pmd_val(pmd) &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
pmd_val(pmd) |= _PAGE_SILENT_WRITE;
pmd_val(pmd) &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
pmd_val(pmd) |= _PAGE_SILENT_WRITE;