linux-kernel - Re: [PATCH 07/10] mm: base LRU balancing on an explicit cost model

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Date:	Tue, 7 Jun 2016 03:13:13 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Johannes Weiner <hannes@...xchg.org>
Cc:	kbuild-all@...org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>, Mel Gorman <mgorman@...e.de>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Michal Hocko <mhocko@...e.cz>,
	Tim Chen <tim.c.chen@...ux.intel.com>, kernel-team@...com
Subject: Re: [PATCH 07/10] mm: base LRU balancing on an explicit cost model

Hi,

[auto build test ERROR on cifs/for-next]
[also build test ERROR on v4.7-rc2 next-20160606]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Johannes-Weiner/mm-balance-LRU-lists-based-on-relative-thrashing/20160607-035348
base:   git://git.samba.org/sfrench/cifs-2.6.git for-next
config: s390-default_defconfig (attached as .config)
compiler: s390x-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=s390 

All errors (new ones prefixed by >>):

   mm/memcontrol.c: In function 'memcg_stat_show':
>> mm/memcontrol.c:3221:24: error: 'struct lruvec' has no member named 'reclaim_stat'
        rstat = &mz->lruvec.reclaim_stat;
                           ^
>> mm/memcontrol.c:3223:31: error: dereferencing pointer to incomplete type 'struct zone_reclaim_stat'
        recent_rotated[0] += rstat->recent_rotated[0];
                                  ^

vim +3221 mm/memcontrol.c

7f016ee8 KOSAKI Motohiro 2009-01-07  3215  		unsigned long recent_rotated[2] = {0, 0};
7f016ee8 KOSAKI Motohiro 2009-01-07  3216  		unsigned long recent_scanned[2] = {0, 0};
7f016ee8 KOSAKI Motohiro 2009-01-07  3217  
7f016ee8 KOSAKI Motohiro 2009-01-07  3218  		for_each_online_node(nid)
7f016ee8 KOSAKI Motohiro 2009-01-07  3219  			for (zid = 0; zid < MAX_NR_ZONES; zid++) {
e231875b Jianyu Zhan     2014-06-06  3220  				mz = &memcg->nodeinfo[nid]->zoneinfo[zid];
89abfab1 Hugh Dickins    2012-05-29 @3221  				rstat = &mz->lruvec.reclaim_stat;
7f016ee8 KOSAKI Motohiro 2009-01-07  3222  
89abfab1 Hugh Dickins    2012-05-29 @3223  				recent_rotated[0] += rstat->recent_rotated[0];
89abfab1 Hugh Dickins    2012-05-29  3224  				recent_rotated[1] += rstat->recent_rotated[1];
89abfab1 Hugh Dickins    2012-05-29  3225  				recent_scanned[0] += rstat->recent_scanned[0];
89abfab1 Hugh Dickins    2012-05-29  3226  				recent_scanned[1] += rstat->recent_scanned[1];

:::::: The code at line 3221 was first introduced by commit
:::::: 89abfab133ef1f5902abafb744df72793213ac19 mm/memcg: move reclaim_stat into lruvec

:::::: TO: Hugh Dickins <hughd@...gle.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

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0-DAY kernel test infrastructure                Open Source Technology Center
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