MFT_REF_MASK_CPU
#define MFT_REF_MASK_LE cpu_to_le64(MFT_REF_MASK_CPU)
((u64)(m) & MFT_REF_MASK_CPU)))
#define MREF(x) ((unsigned long)((x) & MFT_REF_MASK_CPU))
#define MREF_LE(x) ((unsigned long)(le64_to_cpu(x) & MFT_REF_MASK_CPU))