25 static void poison_error(mempool_t *pool, void *element, size_t size,  in poison_error()  argument
33 	pr_err("BUG: mempool element poison mismatch\n");  in poison_error()
35 	pr_err(" nr=%d @ %p: %s0x", nr, element, start > 0 ? "... " : "");  in poison_error()
37 		pr_cont("%x ", *(u8 *)(element + i));  in poison_error()
42 static void __check_element(mempool_t *pool, void *element, size_t size)  in __check_element()  argument
44 	u8 *obj = element;  in __check_element()
51 			poison_error(pool, element, size, i);  in __check_element()
58 static void check_element(mempool_t *pool, void *element)  in check_element()  argument
62 		__check_element(pool, element, ksize(element));  in check_element()
66 		void *addr = kmap_atomic((struct page *)element);  in check_element()
73 static void __poison_element(void *element, size_t size)  in __poison_element()  argument
75 	u8 *obj = element;  in __poison_element()
81 static void poison_element(mempool_t *pool, void *element)  in poison_element()  argument
85 		__poison_element(element, ksize(element));  in poison_element()
89 		void *addr = kmap_atomic((struct page *)element);  in poison_element()
96 static inline void check_element(mempool_t *pool, void *element)  in check_element()  argument
99 static inline void poison_element(mempool_t *pool, void *element)  in poison_element()  argument
104 static __always_inline void kasan_poison_element(mempool_t *pool, void *element)  in kasan_poison_element()  argument
107 		kasan_slab_free_mempool(element);  in kasan_poison_element()
109 		kasan_poison_pages(element, (unsigned long)pool->pool_data,  in kasan_poison_element()
113 static void kasan_unpoison_element(mempool_t *pool, void *element)  in kasan_unpoison_element()  argument
116 		kasan_unpoison_range(element, __ksize(element));  in kasan_unpoison_element()
118 		kasan_unpoison_pages(element, (unsigned long)pool->pool_data,  in kasan_unpoison_element()
122 static __always_inline void add_element(mempool_t *pool, void *element)  in add_element()  argument
125 	poison_element(pool, element);  in add_element()
126 	kasan_poison_element(pool, element);  in add_element()
127 	pool->elements[pool->curr_nr++] = element;  in add_element()
132 	void *element = pool->elements[--pool->curr_nr];  in remove_element()  local
135 	kasan_unpoison_element(pool, element);  in remove_element()
136 	check_element(pool, element);  in remove_element()
137 	return element;  in remove_element()
154 		void *element = remove_element(pool);  in mempool_exit()  local
155 		pool->free(element, pool->pool_data);  in mempool_exit()
200 		void *element;  in mempool_init_node()  local
202 		element = pool->alloc(gfp_mask, pool->pool_data);  in mempool_init_node()
203 		if (unlikely(!element)) {  in mempool_init_node()
207 		add_element(pool, element);  in mempool_init_node()
219  * @alloc_fn:  user-defined element-allocation function.
220  * @free_fn:   user-defined element-freeing function.
241  * @alloc_fn:  user-defined element-allocation function.
242  * @free_fn:   user-defined element-freeing function.
301 	void *element;  in mempool_resize()  local
311 			element = remove_element(pool);  in mempool_resize()
313 			pool->free(element, pool->pool_data);  in mempool_resize()
342 		element = pool->alloc(GFP_KERNEL, pool->pool_data);  in mempool_resize()
343 		if (!element)  in mempool_resize()
347 			add_element(pool, element);  in mempool_resize()
350 			pool->free(element, pool->pool_data);	/* Raced */  in mempool_resize()
362  * mempool_alloc - allocate an element from a specific memory pool
373  * Return: pointer to the allocated element or %NULL on error.
377 	void *element;  in mempool_alloc()  local
393 	element = pool->alloc(gfp_temp, pool->pool_data);  in mempool_alloc()
394 	if (likely(element != NULL))  in mempool_alloc()
395 		return element;  in mempool_alloc()
399 		element = remove_element(pool);  in mempool_alloc()
407 		kmemleak_update_trace(element);  in mempool_alloc()
408 		return element;  in mempool_alloc()
427 	/* Let's wait for someone else to return an element to @pool */  in mempool_alloc()
445  * mempool_free - return an element to the pool.
446  * @element:   pool element pointer.
452 void mempool_free(void *element, mempool_t *pool)  in mempool_free()  argument
456 	if (unlikely(element == NULL))  in mempool_free()
461 	 * for @element and the following @pool->curr_nr.  This ensures  in mempool_free()
463 	 * allocation of @element.  This is necessary for fringe cases  in mempool_free()
464 	 * where @element was passed to this task without going through  in mempool_free()
482 	 * allocation of @element, any task which decremented curr_nr below  in mempool_free()
485 	 * to min_nr after the allocation of @element, the elements  in mempool_free()
495 			add_element(pool, element);  in mempool_free()
502 	pool->free(element, pool->pool_data);  in mempool_free()
517 void mempool_free_slab(void *element, void *pool_data)  in mempool_free_slab()  argument
520 	kmem_cache_free(mem, element);  in mempool_free_slab()
535 void mempool_kfree(void *element, void *pool_data)  in mempool_kfree()  argument
537 	kfree(element);  in mempool_kfree()
552 void mempool_free_pages(void *element, void *pool_data)  in mempool_free_pages()  argument
555 	__free_pages(element, order);  in mempool_free_pages()