1 files changed, 2 insertions, 2 deletions

diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 9cb831899119..156bf6091a96 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -136,7 +136,7 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
                        int mode, struct buffer_head **out_bh)
 {
         struct buffer_head *bh;
-        unsigned long blknum = 0;
+        __u64 blknum = 0;
         int ret = -ENOMEM;
 
         bh = nilfs_grab_buffer(inode, inode->i_mapping, blkoff, 0);
@@ -166,7 +166,7 @@ nilfs_mdt_submit_block(struct inode *inode, unsigned long blkoff,
                 goto failed_bh;
         }
         bh->b_bdev = NILFS_MDT(inode)->mi_nilfs->ns_bdev;
-        bh->b_blocknr = blknum;
+        bh->b_blocknr = (sector_t)blknum;
         set_buffer_mapped(bh);
 
         bh->b_end_io = end_buffer_read_sync;