[PATCH V2] arm64: properly define SOFT_DIRTY functionality
kernel test robot
lkp at intel.com
Tue Jul 11 15:28:37 PDT 2023
Hi Nico,
kernel test robot noticed the following build errors:
[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on arm/for-next arm/fixes kvmarm/next soc/for-next linus/master v6.5-rc1 next-20230711]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nico-Pache/arm64-properly-define-SOFT_DIRTY-functionality/20230704-213758
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link: https://lore.kernel.org/r/20230704133633.1918147-1-npache%40redhat.com
patch subject: [PATCH V2] arm64: properly define SOFT_DIRTY functionality
config: arm64-randconfig-r001-20230712 (https://download.01.org/0day-ci/archive/20230712/202307120618.qcxXw9mm-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230712/202307120618.qcxXw9mm-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307120618.qcxXw9mm-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from include/linux/mm_inline.h:10,
from fs/proc/task_mmu.c:3:
include/linux/swapops.h: In function 'pte_swp_clear_flags':
include/linux/swapops.h:77:23: error: implicit declaration of function 'pte_swp_clear_soft_dirty'; did you mean 'pte_swp_soft_dirty'? [-Werror=implicit-function-declaration]
77 | pte = pte_swp_clear_soft_dirty(pte);
| ^~~~~~~~~~~~~~~~~~~~~~~~
| pte_swp_soft_dirty
include/linux/swapops.h:77:23: error: incompatible types when assigning to type 'pte_t' from type 'int'
include/linux/swapops.h: In function 'pmd_to_swp_entry':
include/linux/swapops.h:506:13: error: implicit declaration of function 'pmd_swp_soft_dirty'; did you mean 'pte_swp_soft_dirty'? [-Werror=implicit-function-declaration]
506 | if (pmd_swp_soft_dirty(pmd))
| ^~~~~~~~~~~~~~~~~~
| pte_swp_soft_dirty
include/linux/swapops.h:507:23: error: implicit declaration of function 'pmd_swp_clear_soft_dirty'; did you mean 'pmd_swp_clear_uffd_wp'? [-Werror=implicit-function-declaration]
507 | pmd = pmd_swp_clear_soft_dirty(pmd);
| ^~~~~~~~~~~~~~~~~~~~~~~~
| pmd_swp_clear_uffd_wp
include/linux/swapops.h:507:23: error: incompatible types when assigning to type 'pmd_t' from type 'int'
fs/proc/task_mmu.c: In function 'pagemap_pmd_range':
>> fs/proc/task_mmu.c:1488:29: error: implicit declaration of function 'pmd_soft_dirty'; did you mean 'pte_soft_dirty'? [-Werror=implicit-function-declaration]
1488 | if (pmd_soft_dirty(pmd))
| ^~~~~~~~~~~~~~
| pte_soft_dirty
cc1: some warnings being treated as errors
vim +1488 fs/proc/task_mmu.c
bcf8039ed45f56 Dave Hansen 2008-06-12 1463
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1464 static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end,
2165009bdf63f7 Dave Hansen 2008-06-12 1465 struct mm_walk *walk)
85863e475e59af Matt Mackall 2008-02-04 1466 {
f995ece24dfecb Naoya Horiguchi 2015-02-11 1467 struct vm_area_struct *vma = walk->vma;
2165009bdf63f7 Dave Hansen 2008-06-12 1468 struct pagemapread *pm = walk->private;
bf929152e9f6c4 Kirill A. Shutemov 2013-11-14 1469 spinlock_t *ptl;
05fbf357d94152 Konstantin Khlebnikov 2015-02-11 1470 pte_t *pte, *orig_pte;
85863e475e59af Matt Mackall 2008-02-04 1471 int err = 0;
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1472 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
24d7275ce27918 Yang Shi 2022-02-11 1473 bool migration = false;
24d7275ce27918 Yang Shi 2022-02-11 1474
b6ec57f4b92e9b Kirill A. Shutemov 2016-01-21 1475 ptl = pmd_trans_huge_lock(pmdp, vma);
b6ec57f4b92e9b Kirill A. Shutemov 2016-01-21 1476 if (ptl) {
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1477 u64 flags = 0, frame = 0;
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1478 pmd_t pmd = *pmdp;
84c3fc4e9c563d Zi Yan 2017-09-08 1479 struct page *page = NULL;
0f8975ec4db2c8 Pavel Emelyanov 2013-07-03 1480
b83d7e432399d4 Huang Ying 2017-11-02 1481 if (vma->vm_flags & VM_SOFTDIRTY)
deb945441b9408 Konstantin Khlebnikov 2015-09-08 1482 flags |= PM_SOFT_DIRTY;
d9104d1ca96624 Cyrill Gorcunov 2013-09-11 1483
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1484 if (pmd_present(pmd)) {
84c3fc4e9c563d Zi Yan 2017-09-08 1485 page = pmd_page(pmd);
77bb499bb60f4b Konstantin Khlebnikov 2015-09-08 1486
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1487 flags |= PM_PRESENT;
b83d7e432399d4 Huang Ying 2017-11-02 @1488 if (pmd_soft_dirty(pmd))
b83d7e432399d4 Huang Ying 2017-11-02 1489 flags |= PM_SOFT_DIRTY;
fb8e37f35a2fe1 Peter Xu 2021-06-30 1490 if (pmd_uffd_wp(pmd))
fb8e37f35a2fe1 Peter Xu 2021-06-30 1491 flags |= PM_UFFD_WP;
1c90308e7a77af Konstantin Khlebnikov 2015-09-08 1492 if (pm->show_pfn)
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1493 frame = pmd_pfn(pmd) +
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1494 ((addr & ~PMD_MASK) >> PAGE_SHIFT);
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1495 }
84c3fc4e9c563d Zi Yan 2017-09-08 1496 #ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION
84c3fc4e9c563d Zi Yan 2017-09-08 1497 else if (is_swap_pmd(pmd)) {
84c3fc4e9c563d Zi Yan 2017-09-08 1498 swp_entry_t entry = pmd_to_swp_entry(pmd);
ab6ecf247a9321 Huang Ying 2018-06-07 1499 unsigned long offset;
84c3fc4e9c563d Zi Yan 2017-09-08 1500
ab6ecf247a9321 Huang Ying 2018-06-07 1501 if (pm->show_pfn) {
0d206b5d2e0d7d Peter Xu 2022-08-11 1502 if (is_pfn_swap_entry(entry))
0d206b5d2e0d7d Peter Xu 2022-08-11 1503 offset = swp_offset_pfn(entry);
0d206b5d2e0d7d Peter Xu 2022-08-11 1504 else
0d206b5d2e0d7d Peter Xu 2022-08-11 1505 offset = swp_offset(entry);
0d206b5d2e0d7d Peter Xu 2022-08-11 1506 offset = offset +
ab6ecf247a9321 Huang Ying 2018-06-07 1507 ((addr & ~PMD_MASK) >> PAGE_SHIFT);
84c3fc4e9c563d Zi Yan 2017-09-08 1508 frame = swp_type(entry) |
88c28f2469151b Huang Ying 2018-04-20 1509 (offset << MAX_SWAPFILES_SHIFT);
ab6ecf247a9321 Huang Ying 2018-06-07 1510 }
84c3fc4e9c563d Zi Yan 2017-09-08 1511 flags |= PM_SWAP;
b83d7e432399d4 Huang Ying 2017-11-02 1512 if (pmd_swp_soft_dirty(pmd))
b83d7e432399d4 Huang Ying 2017-11-02 1513 flags |= PM_SOFT_DIRTY;
fb8e37f35a2fe1 Peter Xu 2021-06-30 1514 if (pmd_swp_uffd_wp(pmd))
fb8e37f35a2fe1 Peter Xu 2021-06-30 1515 flags |= PM_UFFD_WP;
84c3fc4e9c563d Zi Yan 2017-09-08 1516 VM_BUG_ON(!is_pmd_migration_entry(pmd));
24d7275ce27918 Yang Shi 2022-02-11 1517 migration = is_migration_entry(entry);
af5cdaf82238fb Alistair Popple 2021-06-30 1518 page = pfn_swap_entry_to_page(entry);
84c3fc4e9c563d Zi Yan 2017-09-08 1519 }
84c3fc4e9c563d Zi Yan 2017-09-08 1520 #endif
84c3fc4e9c563d Zi Yan 2017-09-08 1521
24d7275ce27918 Yang Shi 2022-02-11 1522 if (page && !migration && page_mapcount(page) == 1)
84c3fc4e9c563d Zi Yan 2017-09-08 1523 flags |= PM_MMAP_EXCLUSIVE;
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1524
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1525 for (; addr != end; addr += PAGE_SIZE) {
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1526 pagemap_entry_t pme = make_pme(frame, flags);
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1527
092b50bacd1cdb Naoya Horiguchi 2012-03-21 1528 err = add_to_pagemap(addr, &pme, pm);
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1529 if (err)
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1530 break;
ab6ecf247a9321 Huang Ying 2018-06-07 1531 if (pm->show_pfn) {
ab6ecf247a9321 Huang Ying 2018-06-07 1532 if (flags & PM_PRESENT)
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1533 frame++;
88c28f2469151b Huang Ying 2018-04-20 1534 else if (flags & PM_SWAP)
88c28f2469151b Huang Ying 2018-04-20 1535 frame += (1 << MAX_SWAPFILES_SHIFT);
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1536 }
ab6ecf247a9321 Huang Ying 2018-06-07 1537 }
bf929152e9f6c4 Kirill A. Shutemov 2013-11-14 1538 spin_unlock(ptl);
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1539 return err;
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1540 }
5aaabe831eb527 Naoya Horiguchi 2012-03-21 1541
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1542 if (pmd_trans_unstable(pmdp))
45f83cefe3a5f0 Andrea Arcangeli 2012-03-28 1543 return 0;
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1544 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
bcf8039ed45f56 Dave Hansen 2008-06-12 1545
81d0fa623c5b8d Peter Feiner 2014-10-09 1546 /*
f995ece24dfecb Naoya Horiguchi 2015-02-11 1547 * We can assume that @vma always points to a valid one and @end never
f995ece24dfecb Naoya Horiguchi 2015-02-11 1548 * goes beyond vma->vm_end.
81d0fa623c5b8d Peter Feiner 2014-10-09 1549 */
356515e7b64c26 Konstantin Khlebnikov 2015-09-08 1550 orig_pte = pte = pte_offset_map_lock(walk->mm, pmdp, addr, &ptl);
f995ece24dfecb Naoya Horiguchi 2015-02-11 1551 for (; addr < end; pte++, addr += PAGE_SIZE) {
81d0fa623c5b8d Peter Feiner 2014-10-09 1552 pagemap_entry_t pme;
05fbf357d94152 Konstantin Khlebnikov 2015-02-11 1553
deb945441b9408 Konstantin Khlebnikov 2015-09-08 1554 pme = pte_to_pagemap_entry(pm, vma, addr, *pte);
092b50bacd1cdb Naoya Horiguchi 2012-03-21 1555 err = add_to_pagemap(addr, &pme, pm);
85863e475e59af Matt Mackall 2008-02-04 1556 if (err)
05fbf357d94152 Konstantin Khlebnikov 2015-02-11 1557 break;
85863e475e59af Matt Mackall 2008-02-04 1558 }
05fbf357d94152 Konstantin Khlebnikov 2015-02-11 1559 pte_unmap_unlock(orig_pte, ptl);
05fbf357d94152 Konstantin Khlebnikov 2015-02-11 1560
85863e475e59af Matt Mackall 2008-02-04 1561 cond_resched();
85863e475e59af Matt Mackall 2008-02-04 1562
85863e475e59af Matt Mackall 2008-02-04 1563 return err;
85863e475e59af Matt Mackall 2008-02-04 1564 }
85863e475e59af Matt Mackall 2008-02-04 1565
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