Hi, [auto build test ERROR on v4.7-rc4] [also build test ERROR on next-20160621] [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/Jan-Kara/dax-Clear-dirty-bits-after-flushing-caches/20160621-234931 config: i386-allmodconfig (attached as .config) compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 reproduce: # save the attached .config to linux build tree make ARCH=i386 All error/warnings (new ones prefixed by >>): In file included from include/linux/pagemap.h:10:0, from include/linux/blkdev.h:14, from fs/dax.c:18: fs/dax.c: In function 'dax_mapping_entry_mkclean': >> arch/x86/include/asm/pgtable_32.h:52:38: error: incompatible type for argument 1 of '__kunmap_atomic' #define pte_unmap(pte) kunmap_atomic((pte)) ^ include/linux/highmem.h:127:18: note: in definition of macro 'kunmap_atomic' __kunmap_atomic(addr); \ ^~~~ >> include/linux/mm.h:1681:2: note: in expansion of macro 'pte_unmap' pte_unmap(pte); \ ^~~~~~~~~ >> fs/dax.c:714:3: note: in expansion of macro 'pte_unmap_unlock' pte_unmap_unlock(pte, ptl); ^~~~~~~~~~~~~~~~ In file included from include/linux/highmem.h:34:0, from include/linux/pagemap.h:10, from include/linux/blkdev.h:14, from fs/dax.c:18: arch/x86/include/asm/highmem.h:68:6: note: expected 'void *' but argument is of type 'pte_t {aka union <anonymous>}' void __kunmap_atomic(void *kvaddr); ^~~~~~~~~~~~~~~ vim +/pte_unmap_unlock +714 fs/dax.c 698 address = pgoff_address(index, vma); 699 changed = false; 700 if (follow_pte(vma->vm_mm, address, &ptep, &ptl)) 701 continue; 702 if (pfn != pte_pfn(*ptep)) 703 goto unlock; 704 if (!pte_dirty(*ptep) && !pte_write(*ptep)) 705 goto unlock; 706 707 flush_cache_page(vma, address, pfn); 708 pte = ptep_clear_flush(vma, address, ptep); 709 pte = pte_wrprotect(pte); 710 pte = pte_mkclean(pte); 711 set_pte_at(vma->vm_mm, address, ptep, pte); 712 changed = true; 713 unlock: > 714 pte_unmap_unlock(pte, ptl); 715 716 if (changed) 717 mmu_notifier_invalidate_page(vma->vm_mm, address); 718 } 719 i_mmap_unlock_read(mapping); 720 } 721 722 static int dax_writeback_one(struct block_device *bdev, --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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