linux-kernel - Re: [PATCH v13 049/137] mm/memcg: Add folio_lruvec_relock_irq() and folio_lruvec_relock

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Date:   Mon, 12 Jul 2021 15:18:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-kernel@...r.kernel.org
Cc:     kbuild-all@...ts.01.org,
        "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-mm@...ck.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v13 049/137] mm/memcg: Add folio_lruvec_relock_irq() and
 folio_lruvec_relock_irqsave()

Hi "Matthew,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.14-rc1]
[cannot apply to hnaz-linux-mm/master xfs-linux/for-next tip/perf/core next-20210712]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Matthew-Wilcox-Oracle/Memory-folios/20210712-122232
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git e73f0f0ee7541171d89f2e2491130c7771ba58d3
config: i386-randconfig-a015-20210712 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/5aef571282e393651f972fc71e3610582147b6e7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Matthew-Wilcox-Oracle/Memory-folios/20210712-122232
        git checkout 5aef571282e393651f972fc71e3610582147b6e7
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/x86/kernel/asm-offsets.c:13:
   include/linux/memcontrol.h: In function 'folio_matches_lruvec':
>> include/linux/memcontrol.h:1530:33: error: implicit declaration of function 'folio_memcg' [-Werror=implicit-function-declaration]
    1530 |         lruvec_memcg(lruvec) == folio_memcg(folio);
         |                                 ^~~~~~~~~~~
   include/linux/memcontrol.h:1530:30: warning: comparison between pointer and integer
    1530 |         lruvec_memcg(lruvec) == folio_memcg(folio);
         |                              ^~
   cc1: some warnings being treated as errors
--
   In file included from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/x86/kernel/asm-offsets.c:13:
   include/linux/memcontrol.h: In function 'folio_matches_lruvec':
>> include/linux/memcontrol.h:1530:33: error: implicit declaration of function 'folio_memcg' [-Werror=implicit-function-declaration]
    1530 |         lruvec_memcg(lruvec) == folio_memcg(folio);
         |                                 ^~~~~~~~~~~
   include/linux/memcontrol.h:1530:30: warning: comparison between pointer and integer
    1530 |         lruvec_memcg(lruvec) == folio_memcg(folio);
         |                              ^~
   cc1: some warnings being treated as errors
   make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1212: prepare0] Error 2
   make[1]: Target 'modules_prepare' not remade because of errors.
   make: *** [Makefile:220: __sub-make] Error 2
   make: Target 'modules_prepare' not remade because of errors.
--
   In file included from include/linux/swap.h:9,
                    from include/linux/suspend.h:5,
                    from arch/x86/kernel/asm-offsets.c:13:
   include/linux/memcontrol.h: In function 'folio_matches_lruvec':
>> include/linux/memcontrol.h:1530:33: error: implicit declaration of function 'folio_memcg' [-Werror=implicit-function-declaration]
    1530 |         lruvec_memcg(lruvec) == folio_memcg(folio);
         |                                 ^~~~~~~~~~~
   include/linux/memcontrol.h:1530:30: warning: comparison between pointer and integer
    1530 |         lruvec_memcg(lruvec) == folio_memcg(folio);
         |                              ^~
   cc1: some warnings being treated as errors
   make[2]: *** [scripts/Makefile.build:117: arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1212: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:220: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +/folio_memcg +1530 include/linux/memcontrol.h

  1524	
  1525	/* Test requires a stable page->memcg binding, see page_memcg() */
  1526	static inline bool folio_matches_lruvec(struct folio *folio,
  1527			struct lruvec *lruvec)
  1528	{
  1529		return lruvec_pgdat(lruvec) == folio_pgdat(folio) &&
> 1530		       lruvec_memcg(lruvec) == folio_memcg(folio);
  1531	}
  1532	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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