CC: [email protected] In-Reply-To: <[email protected]> References: <[email protected]> TO: Yu Zhao <[email protected]>
Hi Yu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on arm64/for-next/core] [also build test WARNING on linus/master v5.14-rc6] [cannot apply to hnaz-linux-mm/master tip/x86/core next-20210818] [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] url: https://github.com/0day-ci/linux/commits/Yu-Zhao/Multigenerational-LRU-Framework/20210818-143330 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core :::::: branch date: 7 hours ago :::::: commit date: 7 hours ago config: x86_64-randconfig-s021-20210817 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-348-gf0e6938b-dirty # https://github.com/0day-ci/linux/commit/e51fff45b9822540a91efdeed86f4ee9dabcb1c4 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yu-Zhao/Multigenerational-LRU-Framework/20210818-143330 git checkout e51fff45b9822540a91efdeed86f4ee9dabcb1c4 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> sparse warnings: (new ones prefixed by >>) mm/rmap.c: note: in included file (through include/linux/ksm.h): include/linux/rmap.h:222:28: sparse: sparse: context imbalance in 'page_referenced_one' - unexpected unlock >> mm/rmap.c:1127:6: sparse: sparse: context imbalance in >> 'do_page_add_anon_rmap' - different lock contexts for basic block include/linux/rmap.h:222:28: sparse: sparse: context imbalance in 'try_to_unmap_one' - unexpected unlock include/linux/rmap.h:222:28: sparse: sparse: context imbalance in 'try_to_migrate_one' - unexpected unlock include/linux/rmap.h:222:28: sparse: sparse: context imbalance in 'page_mlock_one' - unexpected unlock vim +/do_page_add_anon_rmap +1127 mm/rmap.c ad8c2ee801ad7a Rik van Riel 2010-08-09 1121 ad8c2ee801ad7a Rik van Riel 2010-08-09 1122 /* ad8c2ee801ad7a Rik van Riel 2010-08-09 1123 * Special version of the above for do_swap_page, which often runs ad8c2ee801ad7a Rik van Riel 2010-08-09 1124 * into pages that are exclusively owned by the current process. ad8c2ee801ad7a Rik van Riel 2010-08-09 1125 * Everybody else should continue to use page_add_anon_rmap above. ad8c2ee801ad7a Rik van Riel 2010-08-09 1126 */ ad8c2ee801ad7a Rik van Riel 2010-08-09 @1127 void do_page_add_anon_rmap(struct page *page, d281ee61451835 Kirill A. Shutemov 2016-01-15 1128 struct vm_area_struct *vma, unsigned long address, int flags) 9617d95e6e9ffd Nicholas Piggin 2006-01-06 1129 { d281ee61451835 Kirill A. Shutemov 2016-01-15 1130 bool compound = flags & RMAP_COMPOUND; 53f9263baba69f Kirill A. Shutemov 2016-01-15 1131 bool first; 53f9263baba69f Kirill A. Shutemov 2016-01-15 1132 be5d0a74c62d8d Johannes Weiner 2020-06-03 1133 if (unlikely(PageKsm(page))) be5d0a74c62d8d Johannes Weiner 2020-06-03 1134 lock_page_memcg(page); be5d0a74c62d8d Johannes Weiner 2020-06-03 1135 else be5d0a74c62d8d Johannes Weiner 2020-06-03 1136 VM_BUG_ON_PAGE(!PageLocked(page), page); be5d0a74c62d8d Johannes Weiner 2020-06-03 1137 53f9263baba69f Kirill A. Shutemov 2016-01-15 1138 if (compound) { 53f9263baba69f Kirill A. Shutemov 2016-01-15 1139 atomic_t *mapcount; e9b61f19858a5d Kirill A. Shutemov 2016-01-15 1140 VM_BUG_ON_PAGE(!PageLocked(page), page); 53f9263baba69f Kirill A. Shutemov 2016-01-15 1141 VM_BUG_ON_PAGE(!PageTransHuge(page), page); 53f9263baba69f Kirill A. Shutemov 2016-01-15 1142 mapcount = compound_mapcount_ptr(page); 53f9263baba69f Kirill A. Shutemov 2016-01-15 1143 first = atomic_inc_and_test(mapcount); 53f9263baba69f Kirill A. Shutemov 2016-01-15 1144 } else { 53f9263baba69f Kirill A. Shutemov 2016-01-15 1145 first = atomic_inc_and_test(&page->_mapcount); 53f9263baba69f Kirill A. Shutemov 2016-01-15 1146 } 53f9263baba69f Kirill A. Shutemov 2016-01-15 1147 53f9263baba69f Kirill A. Shutemov 2016-01-15 1148 if (first) { 6c357848b44b40 Matthew Wilcox (Oracle 2020-08-14 1149) int nr = compound ? thp_nr_pages(page) : 1; bea04b073292b2 Jianyu Zhan 2014-06-04 1150 /* bea04b073292b2 Jianyu Zhan 2014-06-04 1151 * We use the irq-unsafe __{inc|mod}_zone_page_stat because bea04b073292b2 Jianyu Zhan 2014-06-04 1152 * these counters are not modified in interrupt context, and bea04b073292b2 Jianyu Zhan 2014-06-04 1153 * pte lock(a spinlock) is held, which implies preemption bea04b073292b2 Jianyu Zhan 2014-06-04 1154 * disabled. bea04b073292b2 Jianyu Zhan 2014-06-04 1155 */ 65c453778aea37 Kirill A. Shutemov 2016-07-26 1156 if (compound) 69473e5de87389 Muchun Song 2021-02-24 1157 __mod_lruvec_page_state(page, NR_ANON_THPS, nr); be5d0a74c62d8d Johannes Weiner 2020-06-03 1158 __mod_lruvec_page_state(page, NR_ANON_MAPPED, nr); 79134171df2381 Andrea Arcangeli 2011-01-13 1159 } 5ad6468801d28c Hugh Dickins 2009-12-14 1160 be5d0a74c62d8d Johannes Weiner 2020-06-03 1161 if (unlikely(PageKsm(page))) { be5d0a74c62d8d Johannes Weiner 2020-06-03 1162 unlock_page_memcg(page); be5d0a74c62d8d Johannes Weiner 2020-06-03 1163 return; be5d0a74c62d8d Johannes Weiner 2020-06-03 1164 } 53f9263baba69f Kirill A. Shutemov 2016-01-15 1165 5dbe0af47f8a8f Hugh Dickins 2011-05-28 1166 /* address might be in next vma when migration races vma_adjust */ 5ad6468801d28c Hugh Dickins 2009-12-14 1167 if (first) d281ee61451835 Kirill A. Shutemov 2016-01-15 1168 __page_set_anon_rmap(page, vma, address, d281ee61451835 Kirill A. Shutemov 2016-01-15 1169 flags & RMAP_EXCLUSIVE); 69029cd550284e KAMEZAWA Hiroyuki 2008-07-25 1170 else c97a9e10eaee32 Nicholas Piggin 2007-05-16 1171 __page_check_anon_rmap(page, vma, address); ^1da177e4c3f41 Linus Torvalds 2005-04-16 1172 } ^1da177e4c3f41 Linus Torvalds 2005-04-16 1173 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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