83 	 * be enough slots to hold all possible variants
99  * @slots:		pointer to the structure holding buddy slots
113 	struct z3fold_buddy_slots *slots;  member
197 	struct z3fold_buddy_slots *slots = kmem_cache_zalloc(pool->c_handle,  in alloc_slots()  local
200 	if (slots) {  in alloc_slots()
202 		kmemleak_not_leak(slots);  in alloc_slots()
203 		slots->pool = (unsigned long)pool;  in alloc_slots()
204 		rwlock_init(&slots->lock);  in alloc_slots()
207 	return slots;  in alloc_slots()
241 	struct z3fold_buddy_slots *slots;  in get_z3fold_header()  local
246 		slots = handle_to_slots(handle);  in get_z3fold_header()
250 			read_lock(&slots->lock);  in get_z3fold_header()
254 			read_unlock(&slots->lock);  in get_z3fold_header()
281 	struct z3fold_buddy_slots *slots;  in free_handle()  local
288 	slots = handle_to_slots(handle);  in free_handle()
289 	write_lock(&slots->lock);  in free_handle()
292 	if (test_bit(HANDLES_NOFREE, &slots->pool)) {  in free_handle()
293 		write_unlock(&slots->lock);  in free_handle()
297 	if (zhdr->slots != slots)  in free_handle()
302 		if (slots->slot[i]) {  in free_handle()
307 	write_unlock(&slots->lock);  in free_handle()
310 		struct z3fold_pool *pool = slots_to_pool(slots);  in free_handle()
312 		if (zhdr->slots == slots)  in free_handle()
313 			zhdr->slots = NULL;  in free_handle()
314 		kmem_cache_free(pool->c_handle, slots);  in free_handle()
323 	struct z3fold_buddy_slots *slots;  in init_z3fold_page()  local
334 	slots = alloc_slots(pool, gfp);  in init_z3fold_page()
335 	if (!slots)  in init_z3fold_page()
342 	zhdr->slots = slots;  in init_z3fold_page()
371 				struct z3fold_buddy_slots *slots,  in __encode_handle()  argument
390 	write_lock(&slots->lock);  in __encode_handle()
391 	slots->slot[idx] = h;  in __encode_handle()
392 	write_unlock(&slots->lock);  in __encode_handle()
393 	return (unsigned long)&slots->slot[idx];  in __encode_handle()
398 	return __encode_handle(zhdr, zhdr->slots, bud);  in encode_handle()
404 	struct z3fold_buddy_slots *slots = handle_to_slots(handle);  in handle_to_chunks()  local
407 	read_lock(&slots->lock);  in handle_to_chunks()
409 	read_unlock(&slots->lock);  in handle_to_chunks()
421 	struct z3fold_buddy_slots *slots = handle_to_slots(handle);  in handle_to_buddy()  local
424 	read_lock(&slots->lock);  in handle_to_buddy()
427 	read_unlock(&slots->lock);  in handle_to_buddy()
607 	 * No need to protect slots here -- all the slots are "local" and  in compact_single_buddy()
610 	if (zhdr->first_chunks && zhdr->slots->slot[first_idx]) {  in compact_single_buddy()
613 		old_handle = (unsigned long)&zhdr->slots->slot[first_idx];  in compact_single_buddy()
615 	} else if (zhdr->middle_chunks && zhdr->slots->slot[middle_idx]) {  in compact_single_buddy()
618 		old_handle = (unsigned long)&zhdr->slots->slot[middle_idx];  in compact_single_buddy()
620 	} else if (zhdr->last_chunks && zhdr->slots->slot[last_idx]) {  in compact_single_buddy()
623 		old_handle = (unsigned long)&zhdr->slots->slot[last_idx];  in compact_single_buddy()
661 		write_lock(&zhdr->slots->lock);  in compact_single_buddy()
667 		write_unlock(&zhdr->slots->lock);  in compact_single_buddy()
881 	if (zhdr && !zhdr->slots) {  in __z3fold_alloc()
882 		zhdr->slots = alloc_slots(pool, GFP_ATOMIC);  in __z3fold_alloc()
883 		if (!zhdr->slots)  in __z3fold_alloc()