H_PAGE_BUSY        40 arch/powerpc/include/asm/book3s/64/hash-4k.h #define H_PAGE_BUSY	_RPAGE_RSV1     /* software: PTE & hash are busy */
H_PAGE_BUSY        35 arch/powerpc/include/asm/book3s/64/hash-64k.h #define H_PAGE_BUSY	_RPAGE_RPN44     /* software: PTE & hash are busy */