EXT4_EPOCH_BITS   797 fs/ext4/ext4.h #define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)
EXT4_EPOCH_BITS   798 fs/ext4/ext4.h #define EXT4_NSEC_MASK  (~0UL << EXT4_EPOCH_BITS)
EXT4_EPOCH_BITS   840 fs/ext4/ext4.h 	return cpu_to_le32(extra | (time->tv_nsec << EXT4_EPOCH_BITS));
EXT4_EPOCH_BITS   848 fs/ext4/ext4.h 	time->tv_nsec = (le32_to_cpu(extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;