Re: [PATCH 3/3] virtio_balloon: Introduce memory recover

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Hi zhenwei,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on next-20220519]
[cannot apply to linux/master linus/master v5.18-rc7]
[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/intel-lab-lkp/linux/commits/zhenwei-pi/recover-hardware-corrupted-page-by-virtio-balloon/20220520-151328
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: nios2-randconfig-r002-20220519 (https://download.01.org/0day-ci/archive/20220520/202205202151.7T3K7Szf-lkp@xxxxxxxxx/config)
compiler: nios2-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/a42127073dd4adb6354649c8235c5cde033d01f2
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review zhenwei-pi/recover-hardware-corrupted-page-by-virtio-balloon/20220520-151328
        git checkout a42127073dd4adb6354649c8235c5cde033d01f2
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   nios2-linux-ld: drivers/virtio/virtio_balloon.o: in function `unpoison_memory_func':
>> drivers/virtio/virtio_balloon.c:679: undefined reference to `unpoison_memory'
   drivers/virtio/virtio_balloon.c:679:(.text+0xc00): relocation truncated to fit: R_NIOS2_CALL26 against `unpoison_memory'
   nios2-linux-ld: drivers/virtio/virtio_balloon.o: in function `virtballoon_probe':
>> drivers/virtio/virtio_balloon.c:1247: undefined reference to `register_memory_failure_notifier'
   drivers/virtio/virtio_balloon.c:1247:(.text+0x1940): relocation truncated to fit: R_NIOS2_CALL26 against `register_memory_failure_notifier'
   nios2-linux-ld: drivers/virtio/virtio_balloon.o: in function `virtballoon_remove':
>> drivers/virtio/virtio_balloon.c:1323: undefined reference to `unregister_memory_failure_notifier'
   drivers/virtio/virtio_balloon.c:1323:(.text+0x1bcc): relocation truncated to fit: R_NIOS2_CALL26 against `unregister_memory_failure_notifier'


vim +679 drivers/virtio/virtio_balloon.c

   661	
   662	static void unpoison_memory_func(struct work_struct *work)
   663	{
   664		struct virtio_balloon *vb;
   665		struct page *page;
   666	
   667		vb = container_of(work, struct virtio_balloon, unpoison_memory_work);
   668	
   669		do {
   670			spin_lock(&vb->recover_page_list_lock);
   671			page = list_first_entry_or_null(&vb->recovered_page_list,
   672							struct page, lru);
   673			if (page)
   674				list_del(&page->lru);
   675			spin_unlock(&vb->recover_page_list_lock);
   676	
   677			if (page) {
   678				put_page(page);
 > 679				unpoison_memory(page_to_pfn(page), true, "virtio-balloon");
   680			}
   681		} while (page);
   682	}
   683	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp




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