diff options
Diffstat (limited to 'drivers/md/bcache/alloc.c')
| -rw-r--r-- | drivers/md/bcache/alloc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c index 89f663d22551..7a28232d868b 100644 --- a/drivers/md/bcache/alloc.c +++ b/drivers/md/bcache/alloc.c @@ -244,6 +244,7 @@ static void invalidate_buckets_random(struct cache *ca) while (!fifo_full(&ca->free_inc)) { size_t n; + get_random_bytes(&n, sizeof(n)); n %= (size_t) (ca->sb.nbuckets - ca->sb.first_bucket); @@ -514,6 +515,7 @@ int bch_bucket_alloc_set(struct cache_set *c, unsigned int reserve, struct bkey *k, int n, bool wait) { int ret; + mutex_lock(&c->bucket_lock); ret = __bch_bucket_alloc_set(c, reserve, k, n, wait); mutex_unlock(&c->bucket_lock); @@ -706,6 +708,7 @@ int bch_open_buckets_alloc(struct cache_set *c) for (i = 0; i < MAX_OPEN_BUCKETS; i++) { struct open_bucket *b = kzalloc(sizeof(*b), GFP_KERNEL); + if (!b) return -ENOMEM; |