NTFS: Add helpers fs/ntfs/layout.h::MK_MREF() and MK_LE_MREF().

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>

fs/ntfs/ChangeLog

@@ -133,6 +133,7 @@ ToDo/Notes:
 	  add a declaration for it to inode.h.  Fix some compilation issues
 	  that resulted due to #includes and header file interdependencies.
 	- Simplify setup of i_mode in fs/ntfs/inode.c::ntfs_read_locked_inode().
+	- Add helpers fs/ntfs/layout.h::MK_MREF() and MK_LE_MREF().
 
 2.1.20 - Fix two stupid bugs introduced in 2.1.18 release.
 

fs/ntfs/layout.h

@@ -316,6 +316,10 @@ typedef enum {
 typedef u64 MFT_REF;
 typedef le64 leMFT_REF;
 
+#define MK_MREF(m, s)	((MFT_REF)(((MFT_REF)(s) << 48) |		\
+					((MFT_REF)(m) & MFT_REF_MASK_CPU)))
+#define MK_LE_MREF(m, s) cpu_to_le64(MK_MREF(m, s))
+
 #define MREF(x)		((unsigned long)((x) & MFT_REF_MASK_CPU))
 #define MSEQNO(x)	((u16)(((x) >> 48) & 0xffff))
 #define MREF_LE(x)	((unsigned long)(le64_to_cpu(x) & MFT_REF_MASK_CPU))