mag_purge
count += mag_purge(oc, &mag, TRUE);
count = mag_purge(oc, &cpucache->loaded_magazine, FALSE);
count += mag_purge(oc, &cpucache->previous_magazine, FALSE);
mag_purge(oc, &cache_percpu->loaded_magazine, TRUE);
mag_purge(oc, &cache_percpu->previous_magazine, TRUE);