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X-CSE-ConnectionGUID: ncjAVwbdRZaAXL9jlb8EFQ== X-CSE-MsgGUID: ZGn1qZF/RXeZWSTgN3pgnA== X-IronPort-AV: E=McAfee;i="6800,10657,11618"; a="65654356" X-IronPort-AV: E=Sophos;i="6.20,213,1758610800"; d="scan'208";a="65654356" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Nov 2025 05:14:13 -0800 X-CSE-ConnectionGUID: EQqCb8m4Rh6GN06kPYkH0A== X-CSE-MsgGUID: es6nKVj7RgmlFUbwaN5+Yg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,213,1758610800"; d="scan'208";a="190614319" Received: from lkp-server01.sh.intel.com (HELO adf6d29aa8d9) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 20 Nov 2025 05:14:12 -0800 Received: from kbuild by adf6d29aa8d9 with local (Exim 4.96) (envelope-from ) id 1vM4UD-000427-25; Thu, 20 Nov 2025 13:14:09 +0000 Date: Thu, 20 Nov 2025 21:13:30 +0800 From: kernel test robot To: "David Hildenbrand (Red Hat)" Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: [davidhildenbrand:hugetlb_unshare 7/8] mm/rmap.c:1877:24: error: use of undeclared identifier 'range' Message-ID: <202511202119.DaZbZygy-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://github.com/davidhildenbrand/linux hugetlb_unshare head: f73f34e9b553d94cf3030e2674fbf2dab619181a commit: b9189040ca4a05c8025ecff5b70a7895018d34e5 [7/8] mm/rmap: factor out PMD table unsharing into try_to_unshare_hugetlb_pmd_table() config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20251120/202511202119.DaZbZygy-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251120/202511202119.DaZbZygy-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/202511202119.DaZbZygy-lkp@intel.com/ All errors (new ones prefixed by >>): mm/rmap.c:1873:31: error: use of undeclared identifier 'tlb' 1873 | unshared = huge_pmd_unshare(&tlb, vma, address); | ^ >> mm/rmap.c:1877:24: error: use of undeclared identifier 'range' 1877 | flush_tlb_range(vma, range.start, range.end); | ^ mm/rmap.c:1877:37: error: use of undeclared identifier 'range' 1877 | flush_tlb_range(vma, range.start, range.end); | ^ 3 errors generated. vim +/range +1877 mm/rmap.c 1848 1849 static bool try_to_unshare_hugetlb_pmd_table(struct vm_area_struct *vma, 1850 unsigned long address, enum ttu_flags flags, 1851 struct page_vma_mapped_walk *pvmw, bool *ret) 1852 { 1853 bool unshared; 1854 1855 if (!IS_ENABLED(CONFIG_HUGETLB_PMD_PAGE_TABLE_SHARING)) 1856 return false; 1857 1858 /* 1859 * To call huge_pmd_unshare, i_mmap_rwsem must be held in write mode. 1860 * Callers needs to explicitly do this outside rmap routines. 1861 * 1862 * We also must hold hugetlb vma_lock in write mode. Lock order dictates 1863 * acquiring vma_lock BEFORE i_mmap_rwsem. We can only try lock here 1864 * and fail if unsuccessful. 1865 */ 1866 VM_WARN_ON_ONCE(!(flags & TTU_RMAP_LOCKED)); 1867 if (!hugetlb_vma_trylock_write(vma)) { 1868 page_vma_mapped_walk_done(pvmw); 1869 *ret = false; 1870 return true; 1871 } 1872 1873 unshared = huge_pmd_unshare(&tlb, vma, address); 1874 hugetlb_vma_unlock_write(vma); 1875 1876 if (unshared) { > 1877 flush_tlb_range(vma, range.start, range.end); 1878 /* 1879 * The PMD table was unmapped, consequently unmapping the 1880 * folio. 1881 */ 1882 page_vma_mapped_walk_done(pvmw); 1883 } 1884 return unshared; 1885 } 1886 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki