* [linux-next:master 7457/8237] mm/shmem.c:721:20: error: call to __compiletime_assert_289 declared with 'error' attribute: BUILD_BUG failed
@ 2022-05-03 17:53 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-05-03 17:53 UTC (permalink / raw)
To: Matthew Wilcox (Oracle)
Cc: llvm, kbuild-all, Linux Memory Management List, Andrew Morton
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 44a2f39e611ac0bc1f17c288a583d7f2e5684aa7
commit: 9a44f3462edc490370e1ac6f0dbc9266f32b39be [7457/8237] mm/shmem: convert shmem_add_to_page_cache to take a folio
config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20220504/202205040154.R7lMeKvs-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 363b3a645a1e30011cc8da624f13dac5fd915628)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=9a44f3462edc490370e1ac6f0dbc9266f32b39be
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 9a44f3462edc490370e1ac6f0dbc9266f32b39be
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> mm/shmem.c:721:20: error: call to __compiletime_assert_289 declared with 'error' attribute: BUILD_BUG failed
count_vm_event(THP_FILE_FALLBACK);
^
include/linux/vm_event_item.h:148:30: note: expanded from macro 'THP_FILE_FALLBACK'
#define THP_FILE_FALLBACK ({ BUILD_BUG(); 0; })
^
include/linux/build_bug.h:59:21: note: expanded from macro 'BUILD_BUG'
#define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:340:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:333:4: note: expanded from macro '__compiletime_assert'
prefix ## suffix(); \
^
<scratch space>:225:1: note: expanded from here
__compiletime_assert_289
^
mm/shmem.c:743:19: error: call to __compiletime_assert_291 declared with 'error' attribute: BUILD_BUG failed
count_vm_event(THP_FILE_ALLOC);
^
include/linux/vm_event_item.h:147:27: note: expanded from macro 'THP_FILE_ALLOC'
#define THP_FILE_ALLOC ({ BUILD_BUG(); 0; })
^
include/linux/build_bug.h:59:21: note: expanded from macro 'BUILD_BUG'
#define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:340:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:333:4: note: expanded from macro '__compiletime_assert'
prefix ## suffix(); \
^
<scratch space>:231:1: note: expanded from here
__compiletime_assert_291
^
2 errors generated.
vim +/error +721 mm/shmem.c
5a6e75f8110c97e Kirill A. Shutemov 2016-07-26 695
46f65ec15c6878a Hugh Dickins 2011-08-03 696 /*
46f65ec15c6878a Hugh Dickins 2011-08-03 697 * Like add_to_page_cache_locked, but error if expected item has gone.
46f65ec15c6878a Hugh Dickins 2011-08-03 698 */
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 699) static int shmem_add_to_page_cache(struct folio *folio,
46f65ec15c6878a Hugh Dickins 2011-08-03 700 struct address_space *mapping,
3fea5a499d57dec Johannes Weiner 2020-06-03 701 pgoff_t index, void *expected, gfp_t gfp,
3fea5a499d57dec Johannes Weiner 2020-06-03 702 struct mm_struct *charge_mm)
46f65ec15c6878a Hugh Dickins 2011-08-03 703 {
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 704) XA_STATE_ORDER(xas, &mapping->i_pages, index, folio_order(folio));
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 705) long nr = folio_nr_pages(folio);
3fea5a499d57dec Johannes Weiner 2020-06-03 706 int error;
46f65ec15c6878a Hugh Dickins 2011-08-03 707
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 708) VM_BUG_ON_FOLIO(index != round_down(index, nr), folio);
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 709) VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio);
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 710) VM_BUG_ON_FOLIO(!folio_test_swapbacked(folio), folio);
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 711) VM_BUG_ON(expected && folio_test_large(folio));
46f65ec15c6878a Hugh Dickins 2011-08-03 712
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 713) folio_ref_add(folio, nr);
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 714) folio->mapping = mapping;
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 715) folio->index = index;
46f65ec15c6878a Hugh Dickins 2011-08-03 716
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 717) if (!folio_test_swapcache(folio)) {
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 718) error = mem_cgroup_charge(folio, charge_mm, gfp);
3fea5a499d57dec Johannes Weiner 2020-06-03 719 if (error) {
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 720) if (folio_test_large(folio)) {
3fea5a499d57dec Johannes Weiner 2020-06-03 @721 count_vm_event(THP_FILE_FALLBACK);
3fea5a499d57dec Johannes Weiner 2020-06-03 722 count_vm_event(THP_FILE_FALLBACK_CHARGE);
3fea5a499d57dec Johannes Weiner 2020-06-03 723 }
3fea5a499d57dec Johannes Weiner 2020-06-03 724 goto error;
3fea5a499d57dec Johannes Weiner 2020-06-03 725 }
4c6355b25e8bb83 Johannes Weiner 2020-06-03 726 }
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 727) folio_throttle_swaprate(folio, gfp);
3fea5a499d57dec Johannes Weiner 2020-06-03 728
552446a4166189a Matthew Wilcox 2017-12-01 729 do {
552446a4166189a Matthew Wilcox 2017-12-01 730 xas_lock_irq(&xas);
6b24ca4a1a8d4ee Matthew Wilcox (Oracle 2020-06-27 731) if (expected != xas_find_conflict(&xas)) {
6b24ca4a1a8d4ee Matthew Wilcox (Oracle 2020-06-27 732) xas_set_err(&xas, -EEXIST);
6b24ca4a1a8d4ee Matthew Wilcox (Oracle 2020-06-27 733) goto unlock;
6b24ca4a1a8d4ee Matthew Wilcox (Oracle 2020-06-27 734) }
6b24ca4a1a8d4ee Matthew Wilcox (Oracle 2020-06-27 735) if (expected && xas_find_conflict(&xas)) {
552446a4166189a Matthew Wilcox 2017-12-01 736 xas_set_err(&xas, -EEXIST);
552446a4166189a Matthew Wilcox 2017-12-01 737 goto unlock;
800d8c63b2e989c Kirill A. Shutemov 2016-07-26 738 }
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 739) xas_store(&xas, folio);
6b24ca4a1a8d4ee Matthew Wilcox (Oracle 2020-06-27 740) if (xas_error(&xas))
6b24ca4a1a8d4ee Matthew Wilcox (Oracle 2020-06-27 741) goto unlock;
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 742) if (folio_test_large(folio)) {
800d8c63b2e989c Kirill A. Shutemov 2016-07-26 743 count_vm_event(THP_FILE_ALLOC);
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 744) __lruvec_stat_mod_folio(folio, NR_SHMEM_THPS, nr);
800d8c63b2e989c Kirill A. Shutemov 2016-07-26 745 }
800d8c63b2e989c Kirill A. Shutemov 2016-07-26 746 mapping->nrpages += nr;
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 747) __lruvec_stat_mod_folio(folio, NR_FILE_PAGES, nr);
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 748) __lruvec_stat_mod_folio(folio, NR_SHMEM, nr);
552446a4166189a Matthew Wilcox 2017-12-01 749 unlock:
552446a4166189a Matthew Wilcox 2017-12-01 750 xas_unlock_irq(&xas);
552446a4166189a Matthew Wilcox 2017-12-01 751 } while (xas_nomem(&xas, gfp));
552446a4166189a Matthew Wilcox 2017-12-01 752
552446a4166189a Matthew Wilcox 2017-12-01 753 if (xas_error(&xas)) {
3fea5a499d57dec Johannes Weiner 2020-06-03 754 error = xas_error(&xas);
3fea5a499d57dec Johannes Weiner 2020-06-03 755 goto error;
46f65ec15c6878a Hugh Dickins 2011-08-03 756 }
552446a4166189a Matthew Wilcox 2017-12-01 757
552446a4166189a Matthew Wilcox 2017-12-01 758 return 0;
3fea5a499d57dec Johannes Weiner 2020-06-03 759 error:
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 760) folio->mapping = NULL;
9a44f3462edc490 Matthew Wilcox (Oracle 2022-04-29 761) folio_ref_sub(folio, nr);
3fea5a499d57dec Johannes Weiner 2020-06-03 762 return error;
46f65ec15c6878a Hugh Dickins 2011-08-03 763 }
46f65ec15c6878a Hugh Dickins 2011-08-03 764
:::::: The code at line 721 was first introduced by commit
:::::: 3fea5a499d57dec46043fcdb08e38eac1767bb0d mm: memcontrol: convert page cache to a new mem_cgroup_charge() API
:::::: TO: Johannes Weiner <hannes@cmpxchg.org>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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2022-05-03 17:53 [linux-next:master 7457/8237] mm/shmem.c:721:20: error: call to __compiletime_assert_289 declared with 'error' attribute: BUILD_BUG failed kernel test robot
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