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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-11-08 07:24:22 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-11-08 07:31:11 +0300 |
| commit | 27a036a0c3e7046f508143af96a54f657c3584b8 (patch) | |
| tree | d9f19a6409ac45a95b692f4c69dfba2940af1422 /fs/bcachefs/sb-members_format.h | |
| parent | ca43f73cd1720e3b0b9c49deec1a13c89c0ca1e8 (diff) | |
| download | linux-27a036a0c3e7046f508143af96a54f657c3584b8.tar.xz | |
bcachefs: Fix bch_member.btree_bitmap_shift validation
Needs to match the assert later when we resize...
Reported-by: syzbot+e8eff054face85d7ea41@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/sb-members_format.h')
| -rw-r--r-- | fs/bcachefs/sb-members_format.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/bcachefs/sb-members_format.h b/fs/bcachefs/sb-members_format.h index d727d2dfda08..2adf1221a440 100644 --- a/fs/bcachefs/sb-members_format.h +++ b/fs/bcachefs/sb-members_format.h @@ -66,6 +66,12 @@ struct bch_member { }; /* + * btree_allocated_bitmap can represent sector addresses of a u64: it itself has + * 64 elements, so 64 - ilog2(64) + */ +#define BCH_MI_BTREE_BITMAP_SHIFT_MAX 58 + +/* * This limit comes from the bucket_gens array - it's a single allocation, and * kernel allocation are limited to INT_MAX */ |