diff options
| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-06-17 10:06:03 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-06-19 18:27:24 -0400 |
| commit | cff07e2739d81cf33eb2a378a6136eced852b8cb (patch) | |
| tree | 16d13ed597b1558a6eeb6bd686acda0199d7f190 /fs/bcachefs/lru.h | |
| parent | 1ba44217f8258f92c56644ca4fad4462f1941e33 (diff) | |
bcachefs: Guard against overflowing LRU_TIME_BITS
LRUs only have 48 bits for the time field (i.e. LRU order); thus we need
overflow checks and guards.
Reported-by: syzbot+df3bf3f088dcaa728857@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/lru.h')
| -rw-r--r-- | fs/bcachefs/lru.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/bcachefs/lru.h b/fs/bcachefs/lru.h index fb11ab0dd00e..bd71ba77de07 100644 --- a/fs/bcachefs/lru.h +++ b/fs/bcachefs/lru.h @@ -2,9 +2,6 @@ #ifndef _BCACHEFS_LRU_H #define _BCACHEFS_LRU_H -#define LRU_TIME_BITS 48 -#define LRU_TIME_MAX ((1ULL << LRU_TIME_BITS) - 1) - static inline u64 lru_pos_id(struct bpos pos) { return pos.inode >> LRU_TIME_BITS; |