On Tue, 11 Dec 2018 18:21:41 +0100 Jan Kara <jack@xxxxxxx> 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?
