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Message-ID: <202605141855.iUPf0H4F-lkp@intel.com> User-Agent: s-nail v14.9.25 X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: D5BF18000A X-Stat-Signature: ncn5d1kes8c8ig7us9kgj8op1qtgdip8 X-Rspam-User: X-HE-Tag: 1778754432-653860 X-HE-Meta: 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 z6PMnskE p1GQEtO11frOwz8plhEIEnp9GNc6AcAFi1XejAFkuuiOD6SDBtVDssGRgq4iGxIOzO/gv0oa1aIkYVrfKwIvFrSLDIIe6crE/HEQrzfao55zeZO+mR1z34C79MPqokOXtGt+eGqBXReWPERwzT0EsOOlhmdQNJNKqPQneDiO1BvXYGLBEpmhwhAKJ/mcARupqMr4lZn3QAO98micNBuNfynhNFnIGfB5cO51w6nRHq4v77t1+IIXIgn0HfFBssLKnAFjx8tH8bnUMBtaU9tNYfacHt+agO0cBqmLruMVQUDGbtTuBEGLc4/8qe46MnhqHWVyb68Pq9AEG1f0JBgiVZGS5/NZe9hqvuxlQWpLfvXRHDh16+Zj9SJqxaA== 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: sh-defconfig (https://download.01.org/0day-ci/archive/20260514/202605141855.iUPf0H4F-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 15.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260514/202605141855.iUPf0H4F-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/202605141855.iUPf0H4F-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