static DEFINE_MUTEX(swap_slots_cache_enable_mutex);
static void __drain_swap_slots_cache(unsigned int type);
-static void deactivate_swap_slots_cache(void);
-static void reactivate_swap_slots_cache(void);
#define use_swap_slot_cache (swap_slot_cache_active && swap_slot_cache_enabled)
#define SLOTS_CACHE 0x1
swap_slot_cache_enabled = false;
if (swap_slot_cache_initialized) {
/* serialize with cpu hotplug operations */
- get_online_cpus();
+ cpus_read_lock();
__drain_swap_slots_cache(SLOTS_CACHE|SLOTS_CACHE_RET);
- put_online_cpus();
+ cpus_read_unlock();
}
}