linux-kernel - Re: [PATCH] mm-move-mremap-from-file_operations-to-vm_operations

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Message-ID: <20150717092249.76adc131@canb.auug.org.au>
Date:	Fri, 17 Jul 2015 09:22:49 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <js1304@...il.com>,
	Benjamin LaHaise <bcrl@...ck.org>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Jeff Moyer <jmoyer@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH]
 mm-move-mremap-from-file_operations-to-vm_operations_struct-fix

Hi Oleg,

On Fri, 17 Jul 2015 01:14:05 +0200 Oleg Nesterov <oleg@...hat.com> wrote:
>
> fs/aio.c can't be compiled if CONFIG_MMU=n, filemap_page_mkwrite()
> is not defined in this case. Add yet another "must not be called"
> helper into nommu.c to make the linker happy.
> 
> I still think this is pointless, afaics sys_io_setup() simply can't
> succeed if CONFIG_MMU=n. Instead we should make CONFIG_AIO depend
> on CONFIG_MMU.
> 
> Reported-by: Fengguang Wu <fengguang.wu@...el.com>
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>

Added as a fix to linux-next today.

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
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