linux-kernel - Re: [PATCH] nfs: cover ->migratepage with CONFIG

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Date:   Tue, 20 Sep 2016 20:51:24 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Chao Yu <yuchao0@...wei.com>
Cc:     kbuild-all@...org, trond.myklebust@...marydata.com,
        anna.schumaker@...app.com, linux-nfs@...r.kernel.org,
        linux-kernel@...r.kernel.org, Chao Yu <yuchao0@...wei.com>
Subject: Re: [PATCH] nfs: cover ->migratepage with CONFIG_MIGRATION

Hi Chao,

[auto build test ERROR on nfs/linux-next]
[also build test ERROR on v4.8-rc7 next-20160919]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Chao-Yu/nfs-cover-migratepage-with-CONFIG_MIGRATION/20160920-121006
base:   git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next
config: i386-randconfig-s1-09191616 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

>> fs/nfs/file.c:547:17: error: 'nfs_migrate_page' undeclared here (not in a function)
     .migratepage = nfs_migrate_page,
                    ^~~~~~~~~~~~~~~~

vim +/nfs_migrate_page +547 fs/nfs/file.c

4899f9c8 Nick Piggin     2007-10-16  541  	.write_begin = nfs_write_begin,
4899f9c8 Nick Piggin     2007-10-16  542  	.write_end = nfs_write_end,
cd52ed35 Trond Myklebust 2006-03-20  543  	.invalidatepage = nfs_invalidate_page,
cd52ed35 Trond Myklebust 2006-03-20  544  	.releasepage = nfs_release_page,
^1da177e Linus Torvalds  2005-04-16  545  	.direct_IO = nfs_direct_IO,
daa42d9f Chao Yu         2016-09-20  546  #ifdef CONFIG_MIGRATION
074cc1de Trond Myklebust 2009-08-10 @547  	.migratepage = nfs_migrate_page,
daa42d9f Chao Yu         2016-09-20  548  #endif
e3db7691 Trond Myklebust 2007-01-10  549  	.launder_page = nfs_launder_page,
f919b196 Mel Gorman      2013-07-03  550  	.is_dirty_writeback = nfs_check_dirty_writeback,

:::::: The code at line 547 was first introduced by commit
:::::: 074cc1deec5dee63fcd5d966b36fa4f3765b50fc NFS: Add a ->migratepage() aop for NFS

:::::: TO: Trond Myklebust <Trond.Myklebust@...app.com>
:::::: CC: Trond Myklebust <Trond.Myklebust@...app.com>

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