Symbol: __SWP_OFFSET_MASK
arch/arm64/include/asm/pgtable.h
1517
#define __SWP_OFFSET_MASK ((1UL << __SWP_OFFSET_BITS) - 1)
arch/s390/include/asm/pgtable.h
1803
#define __SWP_OFFSET_MASK ((1UL << 52) - 1)