129 static int zbud_zpool_evict(struct zbud_pool *pool, unsigned long handle)  in zbud_zpool_evict()  argument
131 	if (pool->zpool && pool->zpool_ops && pool->zpool_ops->evict)  in zbud_zpool_evict()
132 		return pool->zpool_ops->evict(pool->zpool, handle);  in zbud_zpool_evict()
145 	struct zbud_pool *pool;  in zbud_zpool_create()  local
147 	pool = zbud_create_pool(gfp, zpool_ops ? &zbud_zpool_ops : NULL);  in zbud_zpool_create()
148 	if (pool) {  in zbud_zpool_create()
149 		pool->zpool = zpool;  in zbud_zpool_create()
150 		pool->zpool_ops = zpool_ops;  in zbud_zpool_create()
152 	return pool;  in zbud_zpool_create()
155 static void zbud_zpool_destroy(void *pool)  in zbud_zpool_destroy()  argument
157 	zbud_destroy_pool(pool);  in zbud_zpool_destroy()
160 static int zbud_zpool_malloc(void *pool, size_t size, gfp_t gfp,  in zbud_zpool_malloc()  argument
163 	return zbud_alloc(pool, size, gfp, handle);  in zbud_zpool_malloc()
165 static void zbud_zpool_free(void *pool, unsigned long handle)  in zbud_zpool_free()  argument
167 	zbud_free(pool, handle);  in zbud_zpool_free()
170 static int zbud_zpool_shrink(void *pool, unsigned int pages,  in zbud_zpool_shrink()  argument
177 		ret = zbud_reclaim_page(pool, 8);  in zbud_zpool_shrink()
189 static void *zbud_zpool_map(void *pool, unsigned long handle,  in zbud_zpool_map()  argument
192 	return zbud_map(pool, handle);  in zbud_zpool_map()
194 static void zbud_zpool_unmap(void *pool, unsigned long handle)  in zbud_zpool_unmap()  argument
196 	zbud_unmap(pool, handle);  in zbud_zpool_unmap()
199 static u64 zbud_zpool_total_size(void *pool)  in zbud_zpool_total_size()  argument
201 	return zbud_get_pool_size(pool) * PAGE_SIZE;  in zbud_zpool_total_size()
308 	struct zbud_pool *pool;  in zbud_create_pool()  local
311 	pool = kzalloc(sizeof(struct zbud_pool), gfp);  in zbud_create_pool()
312 	if (!pool)  in zbud_create_pool()
314 	spin_lock_init(&pool->lock);  in zbud_create_pool()
316 		INIT_LIST_HEAD(&pool->unbuddied[i]);  in zbud_create_pool()
317 	INIT_LIST_HEAD(&pool->buddied);  in zbud_create_pool()
318 	INIT_LIST_HEAD(&pool->lru);  in zbud_create_pool()
319 	pool->pages_nr = 0;  in zbud_create_pool()
320 	pool->ops = ops;  in zbud_create_pool()
321 	return pool;  in zbud_create_pool()
330 void zbud_destroy_pool(struct zbud_pool *pool)  in zbud_destroy_pool()  argument
332 	kfree(pool);  in zbud_destroy_pool()
354 int zbud_alloc(struct zbud_pool *pool, size_t size, gfp_t gfp,  in zbud_alloc()  argument
367 	spin_lock(&pool->lock);  in zbud_alloc()
372 		if (!list_empty(&pool->unbuddied[i])) {  in zbud_alloc()
373 			zhdr = list_first_entry(&pool->unbuddied[i],  in zbud_alloc()
385 	spin_unlock(&pool->lock);  in zbud_alloc()
389 	spin_lock(&pool->lock);  in zbud_alloc()
390 	pool->pages_nr++;  in zbud_alloc()
403 		list_add(&zhdr->buddy, &pool->unbuddied[freechunks]);  in zbud_alloc()
406 		list_add(&zhdr->buddy, &pool->buddied);  in zbud_alloc()
412 	list_add(&zhdr->lru, &pool->lru);  in zbud_alloc()
415 	spin_unlock(&pool->lock);  in zbud_alloc()
430 void zbud_free(struct zbud_pool *pool, unsigned long handle)  in zbud_free()  argument
435 	spin_lock(&pool->lock);  in zbud_free()
446 		spin_unlock(&pool->lock);  in zbud_free()
457 		pool->pages_nr--;  in zbud_free()
461 		list_add(&zhdr->buddy, &pool->unbuddied[freechunks]);  in zbud_free()
464 	spin_unlock(&pool->lock);  in zbud_free()
502 int zbud_reclaim_page(struct zbud_pool *pool, unsigned int retries)  in zbud_reclaim_page()  argument
508 	spin_lock(&pool->lock);  in zbud_reclaim_page()
509 	if (!pool->ops || !pool->ops->evict || list_empty(&pool->lru) ||  in zbud_reclaim_page()
511 		spin_unlock(&pool->lock);  in zbud_reclaim_page()
515 		zhdr = list_last_entry(&pool->lru, struct zbud_header, lru);  in zbud_reclaim_page()
530 		spin_unlock(&pool->lock);  in zbud_reclaim_page()
534 			ret = pool->ops->evict(pool, first_handle);  in zbud_reclaim_page()
539 			ret = pool->ops->evict(pool, last_handle);  in zbud_reclaim_page()
544 		spin_lock(&pool->lock);  in zbud_reclaim_page()
552 			pool->pages_nr--;  in zbud_reclaim_page()
553 			spin_unlock(&pool->lock);  in zbud_reclaim_page()
559 			list_add(&zhdr->buddy, &pool->unbuddied[freechunks]);  in zbud_reclaim_page()
562 			list_add(&zhdr->buddy, &pool->buddied);  in zbud_reclaim_page()
566 		list_add(&zhdr->lru, &pool->lru);  in zbud_reclaim_page()
568 	spin_unlock(&pool->lock);  in zbud_reclaim_page()
584 void *zbud_map(struct zbud_pool *pool, unsigned long handle)  in zbud_map()  argument
594 void zbud_unmap(struct zbud_pool *pool, unsigned long handle)  in zbud_unmap()  argument
605 u64 zbud_get_pool_size(struct zbud_pool *pool)  in zbud_get_pool_size()  argument
607 	return pool->pages_nr;  in zbud_get_pool_size()