Hi Minchan, I love your patch! Yet something to improve: [auto build test ERROR on block/for-next] [also build test ERROR on linux/master linus/master v5.12-rc1 next-20210303] [cannot apply to hnaz-linux-mm/master] [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/Minchan-Kim/mm-disable-LRU-pagevec-during-the-migration-temporarily/20210303-191809 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: arm-randconfig-r031-20210303 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 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/0day-ci/linux/commit/a1c74fba81d1258e320ef52bc995cb0333e3e083 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Minchan-Kim/mm-disable-LRU-pagevec-during-the-migration-temporarily/20210303-191809 git checkout a1c74fba81d1258e320ef52bc995cb0333e3e083 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): mm/swap.c: In function 'lru_add_drain_cpu': >> mm/swap.c:671:2: error: implicit declaration of function 'invalidate_bh_lru'; did you mean 'invalidate_bdev'? [-Werror=implicit-function-declaration] 671 | invalidate_bh_lru(NULL); | ^~~~~~~~~~~~~~~~~ | invalidate_bdev mm/swap.c: At top level: mm/swap.c:874:6: error: conflicting types for 'lru_add_drain_all' 874 | void lru_add_drain_all(void) | ^~~~~~~~~~~~~~~~~ In file included from mm/swap.c:20: include/linux/swap.h:348:13: note: previous declaration of 'lru_add_drain_all' was here 348 | extern void lru_add_drain_all(bool force_all_cpus); | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +671 mm/swap.c 634 635 /* 636 * Drain pages out of the cpu's pagevecs. 637 * Either "cpu" is the current CPU, and preemption has already been 638 * disabled; or "cpu" is being hot-unplugged, and is already dead. 639 */ 640 void lru_add_drain_cpu(int cpu) 641 { 642 struct pagevec *pvec = &per_cpu(lru_pvecs.lru_add, cpu); 643 644 if (pagevec_count(pvec)) 645 __pagevec_lru_add(pvec); 646 647 pvec = &per_cpu(lru_rotate.pvec, cpu); 648 /* Disabling interrupts below acts as a compiler barrier. */ 649 if (data_race(pagevec_count(pvec))) { 650 unsigned long flags; 651 652 /* No harm done if a racing interrupt already did this */ 653 local_lock_irqsave(&lru_rotate.lock, flags); 654 pagevec_lru_move_fn(pvec, pagevec_move_tail_fn); 655 local_unlock_irqrestore(&lru_rotate.lock, flags); 656 } 657 658 pvec = &per_cpu(lru_pvecs.lru_deactivate_file, cpu); 659 if (pagevec_count(pvec)) 660 pagevec_lru_move_fn(pvec, lru_deactivate_file_fn); 661 662 pvec = &per_cpu(lru_pvecs.lru_deactivate, cpu); 663 if (pagevec_count(pvec)) 664 pagevec_lru_move_fn(pvec, lru_deactivate_fn); 665 666 pvec = &per_cpu(lru_pvecs.lru_lazyfree, cpu); 667 if (pagevec_count(pvec)) 668 pagevec_lru_move_fn(pvec, lru_lazyfree_fn); 669 670 activate_page_drain(cpu); > 671 invalidate_bh_lru(NULL); 672 } 673 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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