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

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Date:	Wed, 17 Jul 2013 13:41:24 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Benjamin LaHaise <bcrl@...ck.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Gu Zheng <guz.fnst@...fujitsu.com>
Subject: linux-next: build failure after merge of the final tree (aio tree
 related)

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 reverted that commit for today.

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

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