diff options
| -rw-r--r-- | mm/slab.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/mm/slab.c b/mm/slab.c index cceb347a354e..1a7a10de2a4d 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1279,6 +1279,20 @@ static int __cpuinit cpuup_callback(struct notifier_block *nfb, start_cpu_timer(cpu); break; #ifdef CONFIG_HOTPLUG_CPU + case CPU_DOWN_PREPARE: + /* + * Shutdown cache reaper. Note that the cache_chain_mutex is + * held so that if cache_reap() is invoked it cannot do + * anything expensive but will only modify reap_work + * and reschedule the timer. + */ + cancel_rearming_delayed_work(&per_cpu(reap_work, cpu)); + /* Now the cache_reaper is guaranteed to be not running. */ + per_cpu(reap_work, cpu).work.func = NULL; + break; + case CPU_DOWN_FAILED: + start_cpu_timer(cpu); + break; case CPU_DEAD: /* * Even if all the cpus of a node are down, we don't free the |