tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 128c8f96eb8638c060cd3532dc394d046ce64fe1 commit: b78b27d02930f6f0262353080d0f784ce7aa377e hugetlb: parallelize 1G hugetlb initialization date: 12 months ago config: riscv-randconfig-r073-20250213 (https://download.01.org/0day-ci/archive/20250215/202502150114.XM31HL0I-lkp@xxxxxxxxx/config) compiler: riscv32-linux-gcc (GCC) 14.2.0 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502150114.XM31HL0I-lkp@xxxxxxxxx/ New smatch warnings: mm/hugetlb.c:3424 gather_bootmem_prealloc_node() warn: unsigned '_x' is never less than zero. Old smatch warnings: include/asm-generic/io.h:1005 virt_to_phys() warn: unsigned '_x' is never less than zero. arch/riscv/include/asm/atomic.h:204 arch_atomic_fetch_add_unless() warn: inconsistent indenting vim +/_x +3424 mm/hugetlb.c 79359d6d24df2f Mike Kravetz 2023-10-18 3412 48b8d744ea841b Mike Kravetz 2021-06-30 3413 /* 48b8d744ea841b Mike Kravetz 2021-06-30 3414 * Put bootmem huge pages into the standard lists after mem_map is up. 5e0a760b44417f Kirill A. Shutemov 2023-12-28 3415 * Note: This only applies to gigantic (order > MAX_PAGE_ORDER) pages. 48b8d744ea841b Mike Kravetz 2021-06-30 3416 */ b78b27d02930f6 Gang Li 2024-02-22 3417 static void __init gather_bootmem_prealloc_node(unsigned long nid) aa888a74977a8f Andi Kleen 2008-07-23 3418 { d67e32f26713c3 Mike Kravetz 2023-10-18 3419 LIST_HEAD(folio_list); aa888a74977a8f Andi Kleen 2008-07-23 3420 struct huge_bootmem_page *m; d67e32f26713c3 Mike Kravetz 2023-10-18 3421 struct hstate *h = NULL, *prev_h = NULL; aa888a74977a8f Andi Kleen 2008-07-23 3422 b78b27d02930f6 Gang Li 2024-02-22 3423 list_for_each_entry(m, &huge_boot_pages[nid], list) { 40d18ebffb3974 Mike Kravetz 2018-08-17 @3424 struct page *page = virt_to_page(m); fde1c4ecf91640 Usama Arif 2023-09-13 3425 struct folio *folio = (void *)page; d67e32f26713c3 Mike Kravetz 2023-10-18 3426 d67e32f26713c3 Mike Kravetz 2023-10-18 3427 h = m->hstate; d67e32f26713c3 Mike Kravetz 2023-10-18 3428 /* d67e32f26713c3 Mike Kravetz 2023-10-18 3429 * It is possible to have multiple huge page sizes (hstates) d67e32f26713c3 Mike Kravetz 2023-10-18 3430 * in this list. If so, process each size separately. d67e32f26713c3 Mike Kravetz 2023-10-18 3431 */ d67e32f26713c3 Mike Kravetz 2023-10-18 3432 if (h != prev_h && prev_h != NULL) 79359d6d24df2f Mike Kravetz 2023-10-18 3433 prep_and_add_bootmem_folios(prev_h, &folio_list); d67e32f26713c3 Mike Kravetz 2023-10-18 3434 prev_h = h; ee8f248d266ec6 Becky Bruce 2011-07-25 3435 48b8d744ea841b Mike Kravetz 2021-06-30 3436 VM_BUG_ON(!hstate_is_gigantic(h)); d1c6095572d0cf Sidhartha Kumar 2022-11-29 3437 WARN_ON(folio_ref_count(folio) != 1); fde1c4ecf91640 Usama Arif 2023-09-13 3438 fde1c4ecf91640 Usama Arif 2023-09-13 3439 hugetlb_folio_init_vmemmap(folio, h, fde1c4ecf91640 Usama Arif 2023-09-13 3440 HUGETLB_VMEMMAP_RESERVE_PAGES); 79359d6d24df2f Mike Kravetz 2023-10-18 3441 init_new_hugetlb_folio(h, folio); d67e32f26713c3 Mike Kravetz 2023-10-18 3442 list_add(&folio->lru, &folio_list); af0fb9df784174 Michal Hocko 2018-01-31 3443 b0320c7b7d1ac1 Rafael Aquini 2011-06-15 3444 /* 48b8d744ea841b Mike Kravetz 2021-06-30 3445 * We need to restore the 'stolen' pages to totalram_pages 48b8d744ea841b Mike Kravetz 2021-06-30 3446 * in order to fix confusing memory reports from free(1) and 48b8d744ea841b Mike Kravetz 2021-06-30 3447 * other side-effects, like CommitLimit going negative. b0320c7b7d1ac1 Rafael Aquini 2011-06-15 3448 */ c78a7f3639932c Miaohe Lin 2021-02-24 3449 adjust_managed_page_count(page, pages_per_huge_page(h)); 520495fe96d74e Cannon Matthews 2018-07-03 3450 cond_resched(); aa888a74977a8f Andi Kleen 2008-07-23 3451 } d67e32f26713c3 Mike Kravetz 2023-10-18 3452 79359d6d24df2f Mike Kravetz 2023-10-18 3453 prep_and_add_bootmem_folios(h, &folio_list); aa888a74977a8f Andi Kleen 2008-07-23 3454 } fde1c4ecf91640 Usama Arif 2023-09-13 3455 :::::: The code at line 3424 was first introduced by commit :::::: 40d18ebffb3974272a920c41f2d74431152cae98 mm/hugetlb: remove gigantic page support for HIGHMEM :::::: TO: Mike Kravetz <mike.kravetz@xxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
