linux-kernel - Re: linux-next: build failure after merge of the final tree (aio tree related)

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Message-ID: <20130717134639.GC19643@kvack.org>
Date:	Wed, 17 Jul 2013 09:46:39 -0400
From:	Benjamin LaHaise <bcrl@...ck.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Gu Zheng <guz.fnst@...fujitsu.com>, linux-aio@...ck.org
Subject: Re: linux-next: build failure after merge of the final tree (aio tree related)

Hello Stephen, (actually a greeting this time!)

On Wed, Jul 17, 2013 at 01:41:24PM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the final tree, today's linux-next build (powerpc
> allnoconfig) failed like this:
> 
> fs/aio.c: In function 'aio_migratepage':
> fs/aio.c:196:2: error: implicit declaration of function 'migrate_page_move_mapping' [-Werror=implicit-function-declaration]
>   rc = migrate_page_move_mapping(mapping, new, old, NULL, mode);
>   ^
> 
> Caused by commit 36bc08cc0170 ("fs/aio: Add support to aio ring pages
> migration"). The declaration of migrate_page_move_mapping() in
> linux/migrate.h is protected by CONFIG_MIGRATION - its use in fs/aio.c is
> not.  So the usage needs to be protected, or there needs to be a dummy
> version in linux/migrate.h

I have added and tested a fix for this issue and pushed it out to my 
tree.  Thanks for the report -- I'll try to be a bit more careful.

		-ben

> I have reverted that commit for today.
> 
> -- 
> Cheers,
> Stephen Rothwell                    sfr@...b.auug.org.au



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