mask_cache_entry
PCPU_MIN_UNIT_SIZE / sizeof(struct mask_cache_entry)),
struct mask_cache_entry __percpu *cache = NULL;
(size * sizeof(struct mask_cache_entry)) > PCPU_MIN_UNIT_SIZE)
cache = __alloc_percpu(array_size(sizeof(struct mask_cache_entry),
__alignof__(struct mask_cache_entry));
(size * sizeof(struct mask_cache_entry)) > PCPU_MIN_UNIT_SIZE)
struct mask_cache_entry *entries, *ce;
struct mask_cache_entry *e;
struct mask_cache_entry __percpu *mask_cache;