Re: [PATCH v8 5/7] fsdax: Dedup file range to use a compare function

[Christoph Hellwig]

> +EXPORT_SYMBOL(vfs_dedupe_file_range_compare);

I don't see why this would need to be exported.

> @@ -370,6 +384,15 @@ int generic_remap_file_range_prep(struct file *file_in, 
> loff_t pos_in,
>  
>       return ret;
>  }
> +EXPORT_SYMBOL(__generic_remap_file_range_prep);

Same here.