swapon_mutex       94 mm/swapfile.c  static DEFINE_MUTEX(swapon_mutex);
swapon_mutex     2622 mm/swapfile.c  	mutex_lock(&swapon_mutex);
swapon_mutex     2650 mm/swapfile.c  	mutex_unlock(&swapon_mutex);
swapon_mutex     2715 mm/swapfile.c  	mutex_lock(&swapon_mutex);
swapon_mutex     2752 mm/swapfile.c  	mutex_unlock(&swapon_mutex);
swapon_mutex     3290 mm/swapfile.c  	mutex_lock(&swapon_mutex);
swapon_mutex     3306 mm/swapfile.c  	mutex_unlock(&swapon_mutex);