diff options
| -rw-r--r-- | fs/mbcache.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/mbcache.c b/fs/mbcache.c index 49c5b25bfa8c..bf41e2e72c18 100644 --- a/fs/mbcache.c +++ b/fs/mbcache.c @@ -239,7 +239,9 @@ void mb_cache_entry_delete(struct mb_cache *cache, u32 key, u64 value) spin_lock(&cache->c_list_lock); if (!list_empty(&entry->e_list)) { list_del_init(&entry->e_list); - cache->c_entry_count--; + if (!WARN_ONCE(cache->c_entry_count == 0, + "mbcache: attempt to decrement c_entry_count past zero")) + cache->c_entry_count--; atomic_dec(&entry->e_refcnt); } spin_unlock(&cache->c_list_lock); |