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Message-ID: <202605140938.6Mcv6k8i-lkp@intel.com> User-Agent: s-nail v14.9.25 X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 1ED204000C X-Stat-Signature: kd7ydqwqb19ndwr3usqk134syexizi39 X-Rspam-User: X-HE-Tag: 1778742297-569940 X-HE-Meta: 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 /5FNfdde DuPPOIDc27ci8AH1iHOfx6R3vkoOc7cJ+/R524rGK6jwHRE6TZch9BbT0uAtmQhtlW97U8nJpaHS8j2wvmKH1Y7R48I/MdhzkXhcehrBy0k0f2rvAupqP7hDOF7p4wZr+BAqaBDqqSG/z5lCW6GWiP8eAxEOd/JgRWZCX0BfdccLMnYeLQeMd4ykqWp0KeUcxornuwPvABdrAedLzWL7kGdElqWXQPpzBUgpTFdo6Hj5ziyhH8Lp2i3AMaflrqwsfppeeC9TznUNpxsj4vKUxZZ/kuT+/4XK7OpkCTQZHKjo3FK8= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: 444fc9435e57157fcf30fc99aee44997f3458641 commit: 2bb8fe16f7bf4487248c9ff847fcf189c45b9508 [25/274] mm/hugetlb: avoid false positive lockdep assertion config: s390-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260514/202605140938.6Mcv6k8i-lkp@intel.com/config) compiler: s390x-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260514/202605140938.6Mcv6k8i-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202605140938.6Mcv6k8i-lkp@intel.com/ All errors (new ones prefixed by >>): mm/hugetlb.c: In function 'hugetlb_unshare_pmds': >> mm/hugetlb.c:7281:17: error: implicit declaration of function '__huge_pmd_unshare'; did you mean 'huge_pmd_unshare'? [-Wimplicit-function-declaration] 7281 | __huge_pmd_unshare(&tlb, vma, address, ptep, take_locks); | ^~~~~~~~~~~~~~~~~~ | huge_pmd_unshare vim +7281 mm/hugetlb.c 7233 7234 /* 7235 * If @take_locks is false, the caller must ensure that no concurrent page table 7236 * access can happen (except for gup_fast() and hardware page walks). 7237 * If @take_locks is true, we take the hugetlb VMA lock (to lock out things like 7238 * concurrent page fault handling) and the file rmap lock. 7239 */ 7240 static void hugetlb_unshare_pmds(struct vm_area_struct *vma, 7241 unsigned long start, 7242 unsigned long end, 7243 bool take_locks) 7244 { 7245 struct hstate *h = hstate_vma(vma); 7246 unsigned long sz = huge_page_size(h); 7247 struct mm_struct *mm = vma->vm_mm; 7248 struct mmu_notifier_range range; 7249 struct mmu_gather tlb; 7250 unsigned long address; 7251 spinlock_t *ptl; 7252 pte_t *ptep; 7253 7254 if (!(vma->vm_flags & VM_MAYSHARE)) 7255 return; 7256 7257 if (start >= end) 7258 return; 7259 7260 flush_cache_range(vma, start, end); 7261 tlb_gather_mmu_vma(&tlb, vma); 7262 7263 /* 7264 * No need to call adjust_range_if_pmd_sharing_possible(), because 7265 * we have already done the PUD_SIZE alignment. 7266 */ 7267 mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, mm, 7268 start, end); 7269 mmu_notifier_invalidate_range_start(&range); 7270 if (take_locks) { 7271 hugetlb_vma_lock_write(vma); 7272 i_mmap_lock_write(vma->vm_file->f_mapping); 7273 } else { 7274 i_mmap_assert_write_locked(vma->vm_file->f_mapping); 7275 } 7276 for (address = start; address < end; address += PUD_SIZE) { 7277 ptep = hugetlb_walk(vma, address, sz); 7278 if (!ptep) 7279 continue; 7280 ptl = huge_pte_lock(h, mm, ptep); > 7281 __huge_pmd_unshare(&tlb, vma, address, ptep, take_locks); 7282 spin_unlock(ptl); 7283 } 7284 huge_pmd_unshare_flush(&tlb, vma); 7285 if (take_locks) { 7286 i_mmap_unlock_write(vma->vm_file->f_mapping); 7287 hugetlb_vma_unlock_write(vma); 7288 } 7289 /* 7290 * No need to call mmu_notifier_arch_invalidate_secondary_tlbs(), see 7291 * Documentation/mm/mmu_notifier.rst. 7292 */ 7293 mmu_notifier_invalidate_range_end(&range); 7294 tlb_finish_mmu(&tlb); 7295 } 7296 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki