Re: [PATCH 4/6] mm: migrate: Provide buffer_migrate_page_norefs()

Andrew Morton
2018-12-14T04:53:58Z

On Tue, 11 Dec 2018 18:21:41 +0100 Jan Kara <jack@suse.cz> wrote:

> Provide a variant of buffer_migrate_page() that also checks whether
> there are no unexpected references to buffer heads. This function will
> then be safe to use for block device pages.
>
> ...
>
> +EXPORT_SYMBOL(buffer_migrate_page_norefs);

The export is presently unneeded and I don't think we expect that this
will be used by anything other than fs/block_dev.c?