linux-kernel - Re: [PATCH 3/3] percpu: improve allocation success rate for non-GFP

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Message-ID: <201702260805.zhem8KFI%fengguang.wu@intel.com>
Date:   Sun, 26 Feb 2017 08:48:04 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Tahsin Erdogan <tahsin@...gle.com>
Cc:     kbuild-all@...org, Tejun Heo <tj@...nel.org>,
        Christoph Lameter <cl@...ux.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Roman Pen <r.peniaev@...il.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Michal Hocko <mhocko@...e.com>, zijun_hu <zijun_hu@....com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Tahsin Erdogan <tahsin@...gle.com>
Subject: Re: [PATCH 3/3] percpu: improve allocation success rate for
 non-GFP_KERNEL callers

Hi Tahsin,

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.10 next-20170224]
[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/Tahsin-Erdogan/percpu-remove-unused-chunk_alloc-parameter-from-pcpu_get_pages/20170226-052515
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: blackfin-BF561-EZKIT-SMP_defconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
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=blackfin 

All errors (new ones prefixed by >>):

   mm/built-in.o: In function `pcpu_mem_zalloc':
>> mm/percpu.c:314: undefined reference to `vmalloc_gfp'

vim +314 mm/percpu.c

   308		if (WARN_ON_ONCE(!slab_is_available()))
   309			return NULL;
   310	
   311		if (size <= PAGE_SIZE)
   312			return kzalloc(size, gfp);
   313		else
 > 314			return vmalloc_gfp(size, gfp | __GFP_HIGHMEM | __GFP_ZERO);
   315	}
   316	
   317	/**

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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