diff options
| -rw-r--r-- | mm/slab.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/mm/slab.c b/mm/slab.c index 807d86c76908..1880d482a0cb 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3879,7 +3879,12 @@ static int __do_tune_cpucache(struct kmem_cache *cachep, int limit, prev = cachep->cpu_cache; cachep->cpu_cache = cpu_cache; - kick_all_cpus_sync(); + /* + * Without a previous cpu_cache there's no need to synchronize remote + * cpus, so skip the IPIs. + */ + if (prev) + kick_all_cpus_sync(); check_irq_on(); cachep->batchcount = batchcount; |