NTFS: Complete the previous fix for the unset device when mapping buffers
      for  mft record writing.  I had missed the writepage based mft record
      write code path.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index 3f43bfe6..78adad7 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -924,6 +924,7 @@
 			LCN lcn;
 			unsigned int vcn_ofs;
 
+			bh->b_bdev = vol->sb->s_bdev;
 			/* Obtain the vcn and offset of the current block. */
 			vcn = (VCN)block << bh_size_bits;
 			vcn_ofs = vcn & vol->cluster_size_mask;