tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: bbd220ce4e29ed55ab079007cff0b550895258eb commit: b197f32bc3d3d9f60977f31ad3e9eadb2123ca60 [6443/6992] mm: thp: introduce multi-size THP sysfs interface config: s390-randconfig-r006-20230501 (https://download.01.org/0day-ci/archive/20231211/202312111916.YbsHxKPq-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231211/202312111916.YbsHxKPq-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/202312111916.YbsHxKPq-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from include/linux/spinlock.h:89, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/mm.h:7, from mm/huge_memory.c:8: >> mm/huge_memory.c:80:24: warning: 'huge_anon_orders_lock' defined but not used [-Wunused-variable] 80 | static DEFINE_SPINLOCK(huge_anon_orders_lock); | ^~~~~~~~~~~~~~~~~~~~~ include/linux/spinlock_types.h:43:44: note: in definition of macro 'DEFINE_SPINLOCK' 43 | #define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x) | ^ vim +/huge_anon_orders_lock +80 mm/huge_memory.c 48 49 /* 50 * By default, transparent hugepage support is disabled in order to avoid 51 * risking an increased memory footprint for applications that are not 52 * guaranteed to benefit from it. When transparent hugepage support is 53 * enabled, it is for all mappings, and khugepaged scans all mappings. 54 * Defrag is invoked by khugepaged hugepage allocations and by page faults 55 * for all hugepage allocations. 56 */ 57 unsigned long transparent_hugepage_flags __read_mostly = 58 #ifdef CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS 59 (1<<TRANSPARENT_HUGEPAGE_FLAG)| 60 #endif 61 #ifdef CONFIG_TRANSPARENT_HUGEPAGE_MADVISE 62 (1<<TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG)| 63 #endif 64 (1<<TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG)| 65 (1<<TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG)| 66 (1<<TRANSPARENT_HUGEPAGE_USE_ZERO_PAGE_FLAG); 67 68 static struct shrinker *deferred_split_shrinker; 69 static unsigned long deferred_split_count(struct shrinker *shrink, 70 struct shrink_control *sc); 71 static unsigned long deferred_split_scan(struct shrinker *shrink, 72 struct shrink_control *sc); 73 74 static atomic_t huge_zero_refcount; 75 struct page *huge_zero_page __read_mostly; 76 unsigned long huge_zero_pfn __read_mostly = ~0UL; 77 unsigned long huge_anon_orders_always __read_mostly; 78 unsigned long huge_anon_orders_madvise __read_mostly; 79 unsigned long huge_anon_orders_inherit __read_mostly; > 80 static DEFINE_SPINLOCK(huge_anon_orders_lock); 81 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
