diff options
| -rw-r--r-- | sys/vm/uma_core.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/sys/vm/uma_core.c b/sys/vm/uma_core.c index 2b32a3e..62c2c52 100644 --- a/sys/vm/uma_core.c +++ b/sys/vm/uma_core.c @@ -701,25 +701,37 @@ static void cache_drain_safe_cpu(uma_zone_t zone) { uma_cache_t cache; + uma_bucket_t b1, b2; if (zone->uz_flags & UMA_ZFLAG_INTERNAL) return; + b1 = b2 = NULL; ZONE_LOCK(zone); critical_enter(); cache = &zone->uz_cpu[curcpu]; if (cache->uc_allocbucket) { - LIST_INSERT_HEAD(&zone->uz_buckets, cache->uc_allocbucket, - ub_link); + if (cache->uc_allocbucket->ub_cnt != 0) + LIST_INSERT_HEAD(&zone->uz_buckets, + cache->uc_allocbucket, ub_link); + else + b1 = cache->uc_allocbucket; cache->uc_allocbucket = NULL; } if (cache->uc_freebucket) { - LIST_INSERT_HEAD(&zone->uz_buckets, cache->uc_freebucket, - ub_link); + if (cache->uc_freebucket->ub_cnt != 0) + LIST_INSERT_HEAD(&zone->uz_buckets, + cache->uc_freebucket, ub_link); + else + b2 = cache->uc_freebucket; cache->uc_freebucket = NULL; } critical_exit(); ZONE_UNLOCK(zone); + if (b1) + bucket_free(zone, b1, NULL); + if (b2) + bucket_free(zone, b2, NULL); } /* |
