Subject: Re: [PATCH v2] mm-move-mremap-from-file_operations-to-vm_operations_struct-fix

From: Oleg Nesterov <[email-masked]>
Date: Tue, 21 Jul 2015 18:18:31 +0200

On 07/21, Benjamin LaHaise wrote:
>
> On Tue, Jul 21, 2015 at 05:29:03PM +0200, Oleg Nesterov wrote:
> >
> >  static const struct vm_operations_struct aio_ring_vm_ops = {
> >  	.mremap		= aio_ring_mremap,
> > +#ifdef CONFIG_MMU
> >  	.fault		= filemap_fault,
> >  	.map_pages	= filemap_map_pages,
> >  	.page_mkwrite	= filemap_page_mkwrite,
> > +#endif
> >  };
>
> One nit: using #if IS_ENABLED(CONFIG_MMU) is recommended these days not
> #ifdef CONFIG_MMU.

OK, this matches IS_ENABLED(CONFIG_MIGRATION). I am sending v3.

Oleg.