PAGE_SHARED
ASSERT(PAGE_SHARED(pp));
((se) == SE_EXCL ? PAGE_EXCL(pp) : PAGE_SHARED(pp))
ASSERT(PAGE_SHARED(pp));
ASSERT(PAGE_SHARED(ppa[i]));
ASSERT(prealloc != 0 || PAGE_SHARED(pp));
ASSERT(PAGE_EXCL(pp) || (PAGE_SHARED(pp) && page_iolock_assert(pp)));
(PAGE_EXCL(pp)) || (PAGE_SHARED(pp) && page_iolock_assert(pp)));
((PAGE_SHARED(pp) && page_tryupgrade(pp)) || PAGE_EXCL(pp)) &&
PAGE_EXCL(pp) : PAGE_SHARED(pp));
ASSERT(PAGE_SHARED(pp));
ASSERT(PAGE_SHARED(pp));