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Date: Fri, 17 Jul 2015 08:08:22 +1000
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
        Oleg Nesterov <oleg@redhat.com>
Subject: linux-next: build failure after merge of the akpm-current tree
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Hi Andrew,

After merging the akpm-current tree, today's linux-next build (lots with
CONFIG_MMU not set) failed like this:

fs/built-in.o:(.rodata+0x1060): undefined reference to `filemap_page_mkwrite'

Caused by commit

  fb416a02f75c ("mm: move ->mremap() from file_operations to vm_operations_struct").

filemap_page_mkwrite only exists when CONFIG_MMU is set.

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