struct initializer 문의 올려봅니다.

아래 내용 어떻게 해석해야 하나요?
https://lkml.org/lkml/2011/7/26/232
수정사항인데, 문법이 짧아서...
설명 좀 부탁드립니다.

static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;

struct memblock memblock __initdata_memblock = {
.memory.regions = memblock_memory_init_regions,
.memory.cnt = 1, /* empty dummy entry */
.memory.max = INIT_MEMBLOCK_REGIONS,

.reserved.regions = memblock_reserved_init_regions,
.reserved.cnt = 1, /* empty dummy entry */
.reserved.max = INIT_MEMBLOCK_REGIONS,

.current_limit = MEMBLOCK_ALLOC_ANYWHERE,
};