diff options
Diffstat (limited to 'fs/f2fs/node.h')
| -rw-r--r-- | fs/f2fs/node.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index bcf2034e4263..5e114f352099 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -129,13 +129,17 @@ static inline void raw_nat_from_node_info(struct f2fs_nat_entry *raw_ne, static inline bool excess_dirty_nats(struct f2fs_sb_info *sbi) { - return NM_I(sbi)->nat_cnt[DIRTY_NAT] >= NM_I(sbi)->max_nid * + /* nat_cnt[] is heuristic accounting sampled locklessly here. */ + return data_race(READ_ONCE(NM_I(sbi)->nat_cnt[DIRTY_NAT])) >= + NM_I(sbi)->max_nid * NM_I(sbi)->dirty_nats_ratio / 100; } static inline bool excess_cached_nats(struct f2fs_sb_info *sbi) { - return NM_I(sbi)->nat_cnt[TOTAL_NAT] >= DEF_NAT_CACHE_THRESHOLD; + /* nat_cnt[] is heuristic accounting sampled locklessly here. */ + return data_race(READ_ONCE(NM_I(sbi)->nat_cnt[TOTAL_NAT])) >= + DEF_NAT_CACHE_THRESHOLD; } enum mem_type { |