1 files changed, 1 insertions, 1 deletions

diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index de88ddf3bf02..379fda4c668c 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -66,7 +66,7 @@ struct nilfs_bmap_operations {
         int (*bop_delete)(struct nilfs_bmap *, __u64);
         void (*bop_clear)(struct nilfs_bmap *);
 
-        int (*bop_propagate)(const struct nilfs_bmap *, struct buffer_head *);
+        int (*bop_propagate)(struct nilfs_bmap *, struct buffer_head *);
         void (*bop_lookup_dirty_buffers)(struct nilfs_bmap *,
                                          struct list_head *);