* [koverstreet-bcachefs:pr/1073 38/44] fs/bcachefs/alloc/buckets.c:961:5: warning: stack frame size (1448) exceeds limit (1024) in 'bch2_trigger_extent'
@ 2026-04-16 4:09 kernel test robot
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From: kernel test robot @ 2026-04-16 4:09 UTC (permalink / raw)
To: Jul Lang; +Cc: llvm, oe-kbuild-all
tree: https://github.com/koverstreet/bcachefs pr/1073
head: 1c434d4b3e42fd2cc1af8bdb1274136e1b10728a
commit: 37541c231786a29ba46ae1cec2e462b0be4edb41 [38/44] bcachefs: update reconcile-only backpointer flags in place
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20260416/202604161204.4WpBldFH-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260416/202604161204.4WpBldFH-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604161204.4WpBldFH-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> fs/bcachefs/alloc/buckets.c:961:5: warning: stack frame size (1448) exceeds limit (1024) in 'bch2_trigger_extent' [-Wframe-larger-than]
961 | int bch2_trigger_extent(struct btree_trans *trans,
| ^
1 warning generated.
vim +/bch2_trigger_extent +961 fs/bcachefs/alloc/buckets.c
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 960
4f9ec59f8fd658 fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 @961 int bch2_trigger_extent(struct btree_trans *trans,
f40d13f94df744 fs/bcachefs/buckets.c Kent Overstreet 2024-04-07 962 enum btree_id btree, unsigned level,
717296c34c8d9d fs/bcachefs/buckets.c Kent Overstreet 2023-12-27 963 struct bkey_s_c old, struct bkey_s new,
5dd8c60e1e0448 fs/bcachefs/buckets.c Kent Overstreet 2024-04-07 964 enum btree_iter_update_trigger_flags flags)
523f33efbf406f fs/bcachefs/buckets.c Kent Overstreet 2023-06-22 965 {
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 966 struct bkey_ptrs_c new_ptrs = bch2_bkey_ptrs_c(new.s_c);
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 967 struct bkey_ptrs_c old_ptrs = bch2_bkey_ptrs_c(old);
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 968 unsigned new_ptrs_bytes = (void *) new_ptrs.end - (void *) new_ptrs.start;
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 969 unsigned old_ptrs_bytes = (void *) old_ptrs.end - (void *) old_ptrs.start;
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 970
f40d13f94df744 fs/bcachefs/buckets.c Kent Overstreet 2024-04-07 971 if (unlikely(flags & BTREE_TRIGGER_check_repair))
f40d13f94df744 fs/bcachefs/buckets.c Kent Overstreet 2024-04-07 972 return bch2_check_fix_ptrs(trans, btree, level, new.s_c, flags);
f40d13f94df744 fs/bcachefs/buckets.c Kent Overstreet 2024-04-07 973
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 974 /*
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 975 * Reconcile-only updates keep the same physical pointers. Update
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 976 * their backpointer flags in place so buffered delete+insert churn
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 977 * cannot drop the key, then let reconcile accounting/work tracking
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 978 * see the logical-state change.
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 979 */
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 980 if (level == 0) {
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 981 bool handled;
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 982
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 983 try(bch2_trigger_extent_same_backpointers(trans, btree, level, old, new, &handled));
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 984 if (handled)
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 985 return bch2_trigger_extent_reconcile(trans, btree, level, old, new, flags);
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 986 }
37541c231786a2 fs/bcachefs/alloc/buckets.c Jul Lang 2026-04-13 987
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 988 if (new_ptrs_bytes == old_ptrs_bytes &&
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 989 !memcmp(new_ptrs.start,
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 990 old_ptrs.start,
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 991 new_ptrs_bytes))
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 992 return 0;
f5d4481c3edddf fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 993
49aa7830396bce fs/bcachefs/buckets.c Kent Overstreet 2024-08-23 994 if (flags & (BTREE_TRIGGER_transactional|BTREE_TRIGGER_gc)) {
3c16c1d9609b81 fs/bcachefs/alloc/buckets.c Kent Overstreet 2025-10-05 995 if (old.k->type)
3c16c1d9609b81 fs/bcachefs/alloc/buckets.c Kent Overstreet 2025-10-05 996 try(__trigger_extent(trans, btree, level, old,
3c16c1d9609b81 fs/bcachefs/alloc/buckets.c Kent Overstreet 2025-10-05 997 flags & ~BTREE_TRIGGER_insert));
49aa7830396bce fs/bcachefs/buckets.c Kent Overstreet 2024-08-23 998
3c16c1d9609b81 fs/bcachefs/alloc/buckets.c Kent Overstreet 2025-10-05 999 if (new.k->type)
3c16c1d9609b81 fs/bcachefs/alloc/buckets.c Kent Overstreet 2025-10-05 1000 try(__trigger_extent(trans, btree, level, new.s_c,
3c16c1d9609b81 fs/bcachefs/alloc/buckets.c Kent Overstreet 2025-10-05 1001 flags & ~BTREE_TRIGGER_overwrite));
49aa7830396bce fs/bcachefs/buckets.c Kent Overstreet 2024-08-23 1002
581f7e27bc9728 fs/bcachefs/alloc/buckets.c Kent Overstreet 2025-11-12 1003 try(bch2_trigger_extent_reconcile(trans, btree, level, old, new, flags));
4f9ec59f8fd658 fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 1004 }
fb3f57bb1177ae fs/bcachefs/buckets.c Kent Overstreet 2023-10-20 1005
4f9ec59f8fd658 fs/bcachefs/buckets.c Kent Overstreet 2023-12-28 1006 return 0;
523f33efbf406f fs/bcachefs/buckets.c Kent Overstreet 2023-06-22 1007 }
523f33efbf406f fs/bcachefs/buckets.c Kent Overstreet 2023-06-22 1008
:::::: The code at line 961 was first introduced by commit
:::::: 4f9ec59f8fd658d832460aa25c145bdecfdbaa2d bcachefs: unify extent trigger
:::::: TO: Kent Overstreet <kent.overstreet@linux.dev>
:::::: CC: Kent Overstreet <kent.overstreet@linux.dev>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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