OFFSET_BITS        60 arch/arm/mm/alignment.c #define OFFSET_BITS(i)	(i & 0x0fff)
OFFSET_BITS        46 arch/unicore32/mm/alignment.c #define OFFSET_BITS(i)	(i & 0x03fff)
OFFSET_BITS        62 fs/ceph/dir.c  #define OFFSET_BITS	28