Comment 7 for bug 1692143

Seems this was resolved in 4.12-rc2, mounting ntfs-3g volumes is fine, doesn't generate a kernel warning! It was fixed in fs/fuse/inode.c at https://github.com/torvalds/linux/commit/69c8ebf83213e6165b13d94ec599b861467ee2dc

with

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 5a1b58f..65c8837 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -975,8 +975,15 @@ static int fuse_bdi_init(struct fuse_conn *fc, struct super_block *sb)
  int err;
  char *suffix = "";

- if (sb->s_bdev)
+ if (sb->s_bdev) {
   suffix = "-fuseblk";
+ /*
+ * sb->s_bdi points to blkdev's bdi however we want to redirect
+ * it to our private bdi...
+ */
+ bdi_put(sb->s_bdi);
+ sb->s_bdi = &noop_backing_dev_info;
+ }
  err = super_setup_bdi_name(sb, "%u:%u%s", MAJOR(fc->dev),
        MINOR(fc->dev), suffix);
  if (err)