* Re: [PATCH v2 01/10] mm: memory_hotplug: check hwpoisoned page firstly in do_migrate_range()
[not found] <20240425084028.3888403-2-wangkefeng.wang@huawei.com>
@ 2024-04-27 7:23 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-04-27 7:23 UTC (permalink / raw)
To: Kefeng Wang, Andrew Morton
Cc: llvm, oe-kbuild-all, Linux Memory Management List, willy,
David Hildenbrand, Miaohe Lin, Naoya Horiguchi, Oscar Salvador,
Zi Yan, Hugh Dickins, Jonathan Corbet, Vishal Moola, Kefeng Wang
Hi Kefeng,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
url: https://github.com/intel-lab-lkp/linux/commits/Kefeng-Wang/mm-memory_hotplug-check-hwpoisoned-page-firstly-in-do_migrate_range/20240425-164317
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20240425084028.3888403-2-wangkefeng.wang%40huawei.com
patch subject: [PATCH v2 01/10] mm: memory_hotplug: check hwpoisoned page firstly in do_migrate_range()
config: s390-defconfig (https://download.01.org/0day-ci/archive/20240427/202404271547.obYnCedG-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 5ef5eb66fb428aaf61fb51b709f065c069c11242)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240427/202404271547.obYnCedG-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202404271547.obYnCedG-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from mm/memory_hotplug.c:9:
In file included from include/linux/mm.h:2253:
include/linux/vmstat.h:500:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
500 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
501 | item];
| ~~~~
include/linux/vmstat.h:507:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
507 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
508 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
519 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
520 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
528 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
529 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from mm/memory_hotplug.c:30:
include/linux/mm_inline.h:47:41: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
47 | __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages);
| ~~~~~~~~~~~ ^ ~~~
include/linux/mm_inline.h:49:22: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
49 | NR_ZONE_LRU_BASE + lru, nr_pages);
| ~~~~~~~~~~~~~~~~ ^ ~~~
In file included from mm/memory_hotplug.c:34:
In file included from include/linux/memblock.h:13:
In file included from arch/s390/include/asm/dma.h:5:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
| ^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
| ^
In file included from mm/memory_hotplug.c:34:
In file included from include/linux/memblock.h:13:
In file included from arch/s390/include/asm/dma.h:5:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
| ^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
| ^
In file included from mm/memory_hotplug.c:34:
In file included from include/linux/memblock.h:13:
In file included from arch/s390/include/asm/dma.h:5:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
693 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
701 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
709 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
718 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
727 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
736 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> mm/memory_hotplug.c:1786:13: error: call to undeclared function 'hugetlb_page_mapping_lock_write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1786 | mapping = hugetlb_page_mapping_lock_write(&folio->page);
| ^
mm/memory_hotplug.c:1786:13: note: did you mean 'hugetlb_folio_mapping_lock_write'?
include/linux/hugetlb.h:181:23: note: 'hugetlb_folio_mapping_lock_write' declared here
181 | struct address_space *hugetlb_folio_mapping_lock_write(struct folio *folio);
| ^
>> mm/memory_hotplug.c:1786:11: error: incompatible integer to pointer conversion assigning to 'struct address_space *' from 'int' [-Wint-conversion]
1786 | mapping = hugetlb_page_mapping_lock_write(&folio->page);
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19 warnings and 2 errors generated.
vim +/hugetlb_page_mapping_lock_write +1786 mm/memory_hotplug.c
1774
1775 static bool isolate_and_unmap_hwposion_folio(struct folio *folio)
1776 {
1777 if (WARN_ON(folio_test_lru(folio)))
1778 folio_isolate_lru(folio);
1779
1780 if (!folio_mapped(folio))
1781 return true;
1782
1783 if (folio_test_hugetlb(folio) && !folio_test_anon(folio)) {
1784 struct address_space *mapping;
1785
> 1786 mapping = hugetlb_page_mapping_lock_write(&folio->page);
1787 if (mapping) {
1788 /*
1789 * In shared mappings, try_to_unmap could potentially
1790 * call huge_pmd_unshare. Because of this, take
1791 * semaphore in write mode here and set TTU_RMAP_LOCKED
1792 * to let lower levels know we have taken the lock.
1793 */
1794 try_to_unmap(folio, TTU_IGNORE_MLOCK | TTU_RMAP_LOCKED);
1795 i_mmap_unlock_write(mapping);
1796 }
1797 } else {
1798 try_to_unmap(folio, TTU_IGNORE_MLOCK);
1799 }
1800
1801 return folio_mapped(folio);
1802 }
1803
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