Hi Usama, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on perf-tools-next/perf-tools-next tip/perf/core perf-tools/perf-tools linus/master acme/perf/core v6.15-rc7 next-20250516] [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/Usama-Arif/mm-khugepaged-extract-vm-flag-setting-outside-of-hugepage_madvise/20250520-063452 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20250519223307.3601786-2-usamaarif642%40gmail.com patch subject: [PATCH v3 1/7] mm: khugepaged: extract vm flag setting outside of hugepage_madvise config: s390-randconfig-002-20250520 (https://download.01.org/0day-ci/archive/20250520/202505201734.8Fyk3qKi-lkp@xxxxxxxxx/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250520/202505201734.8Fyk3qKi-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202505201734.8Fyk3qKi-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> mm/khugepaged.c:359:20: error: use of undeclared identifier 'vma' 359 | if (mm_has_pgste(vma->vm_mm)) | ^ 1 error generated. vim +/vma +359 mm/khugepaged.c b46e756f5e4703 Kirill A. Shutemov 2016-07-26 348 d2a8f83f11a4ba Usama Arif 2025-05-19 349 int hugepage_set_vmflags(unsigned long *vm_flags, int advice) b46e756f5e4703 Kirill A. Shutemov 2016-07-26 350 { b46e756f5e4703 Kirill A. Shutemov 2016-07-26 351 switch (advice) { b46e756f5e4703 Kirill A. Shutemov 2016-07-26 352 case MADV_HUGEPAGE: b46e756f5e4703 Kirill A. Shutemov 2016-07-26 353 #ifdef CONFIG_S390 b46e756f5e4703 Kirill A. Shutemov 2016-07-26 354 /* b46e756f5e4703 Kirill A. Shutemov 2016-07-26 355 * qemu blindly sets MADV_HUGEPAGE on all allocations, but s390 b46e756f5e4703 Kirill A. Shutemov 2016-07-26 356 * can't handle this properly after s390_enable_sie, so we simply b46e756f5e4703 Kirill A. Shutemov 2016-07-26 357 * ignore the madvise to prevent qemu from causing a SIGSEGV. b46e756f5e4703 Kirill A. Shutemov 2016-07-26 358 */ b46e756f5e4703 Kirill A. Shutemov 2016-07-26 @359 if (mm_has_pgste(vma->vm_mm)) d2a8f83f11a4ba Usama Arif 2025-05-19 360 return -EPERM; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 361 #endif b46e756f5e4703 Kirill A. Shutemov 2016-07-26 362 *vm_flags &= ~VM_NOHUGEPAGE; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 363 *vm_flags |= VM_HUGEPAGE; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 364 break; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 365 case MADV_NOHUGEPAGE: b46e756f5e4703 Kirill A. Shutemov 2016-07-26 366 *vm_flags &= ~VM_HUGEPAGE; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 367 *vm_flags |= VM_NOHUGEPAGE; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 368 /* b46e756f5e4703 Kirill A. Shutemov 2016-07-26 369 * Setting VM_NOHUGEPAGE will prevent khugepaged from scanning b46e756f5e4703 Kirill A. Shutemov 2016-07-26 370 * this vma even if we leave the mm registered in khugepaged if b46e756f5e4703 Kirill A. Shutemov 2016-07-26 371 * it got registered before VM_NOHUGEPAGE was set. b46e756f5e4703 Kirill A. Shutemov 2016-07-26 372 */ b46e756f5e4703 Kirill A. Shutemov 2016-07-26 373 break; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 374 } b46e756f5e4703 Kirill A. Shutemov 2016-07-26 375 b46e756f5e4703 Kirill A. Shutemov 2016-07-26 376 return 0; b46e756f5e4703 Kirill A. Shutemov 2016-07-26 377 } b46e756f5e4703 Kirill A. Shutemov 2016-07-26 378 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
