NTFS: Fix several occurences of a bug where we would perform 'var & ~const'
      with a 64-bit variable and a int, i.e. 32-bit, constant.  This causes
      the higher order 32-bits of the 64-bit variable to be zeroed.  To fix
      this cast the 'const' to the same 64-bit type as 'var'.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
index 6eb9977..3de5c02 100644
--- a/fs/ntfs/inode.h
+++ b/fs/ntfs/inode.h
@@ -110,7 +110,7 @@
 			u8 block_size_bits; 	/* Log2 of the above. */
 			u8 vcn_size_bits;	/* Log2 of the above. */
 		} index;
-		struct { /* It is a compressed file or an attribute inode. */
+		struct { /* It is a compressed/sparse file/attribute inode. */
 			s64 size;		/* Copy of compressed_size from
 						   $DATA. */
 			u32 block_size;		/* Size of a compression block