page_capture_hash_bucket
struct page_capture_hash_bucket *next;
struct page_capture_hash_bucket *prev;
struct page_capture_hash_bucket *bp1;
struct page_capture_hash_bucket *bp2;
struct page_capture_hash_bucket *head = NULL;
bp1 = kmem_alloc(sizeof (struct page_capture_hash_bucket), KM_SLEEP);