diff options
Diffstat (limited to 'drivers/md/dm-pcache/cache.c')
| -rw-r--r-- | drivers/md/dm-pcache/cache.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/dm-pcache/cache.c b/drivers/md/dm-pcache/cache.c index bb1ada31e483..e9d2b87174d7 100644 --- a/drivers/md/dm-pcache/cache.c +++ b/drivers/md/dm-pcache/cache.c @@ -118,6 +118,9 @@ int cache_pos_decode(struct pcache_cache *cache, if (!latest_addr) return -EIO; + if (!cache_seg_id_valid(cache, latest.cache_seg_id)) + return -EIO; + pos->cache_seg = &cache->segments[latest.cache_seg_id]; pos->seg_off = latest.seg_off; *seq = latest.header.seq; @@ -155,6 +158,7 @@ static int cache_init(struct dm_pcache *pcache) cache->cache_dev = &pcache->cache_dev; cache->n_segs = cache_dev->seg_num; atomic_set(&cache->gc_errors, 0); + atomic_set(&cache->writeback_errors, 0); spin_lock_init(&cache->seg_map_lock); spin_lock_init(&cache->key_head_lock); |