diff options
Diffstat (limited to 'include/linux/mempool.h')
-rw-r--r-- | include/linux/mempool.h | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/include/linux/mempool.h b/include/linux/mempool.h deleted file mode 100644 index 506da24d..00000000 --- a/include/linux/mempool.h +++ /dev/null @@ -1,112 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * memory buffer pool support - */ -#ifndef _LINUX_MEMPOOL_H -#define _LINUX_MEMPOOL_H - -#include <linux/wait.h> -#include <linux/compiler.h> -#include <linux/slab.h> - -struct kmem_cache; - -typedef void * (mempool_alloc_t)(gfp_t gfp_mask, void *pool_data); -typedef void (mempool_free_t)(void *element, void *pool_data); - -typedef struct mempool_s { - spinlock_t lock; - int min_nr; /* nr of elements at *elements */ - int curr_nr; /* Current nr of elements at *elements */ - void **elements; - - void *pool_data; - mempool_alloc_t *alloc; - mempool_free_t *free; - wait_queue_head_t wait; -} mempool_t; - -static inline bool mempool_initialized(mempool_t *pool) -{ - return pool->elements != NULL; -} - -void mempool_exit(mempool_t *pool); -int mempool_init_node(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn, - mempool_free_t *free_fn, void *pool_data, - gfp_t gfp_mask, int node_id); -int mempool_init(mempool_t *pool, int min_nr, mempool_alloc_t *alloc_fn, - mempool_free_t *free_fn, void *pool_data); - -extern mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn, - mempool_free_t *free_fn, void *pool_data); -extern mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn, - mempool_free_t *free_fn, void *pool_data, - gfp_t gfp_mask, int nid); - -extern int mempool_resize(mempool_t *pool, int new_min_nr); -extern void mempool_destroy(mempool_t *pool); -extern void *mempool_alloc(mempool_t *pool, gfp_t gfp_mask) __malloc; -extern void mempool_free(void *element, mempool_t *pool); - -/* - * A mempool_alloc_t and mempool_free_t that get the memory from - * a slab cache that is passed in through pool_data. - * Note: the slab cache may not have a ctor function. - */ -void *mempool_alloc_slab(gfp_t gfp_mask, void *pool_data); -void mempool_free_slab(void *element, void *pool_data); - -static inline int -mempool_init_slab_pool(mempool_t *pool, int min_nr, struct kmem_cache *kc) -{ - return mempool_init(pool, min_nr, mempool_alloc_slab, - mempool_free_slab, (void *) kc); -} - -static inline mempool_t * -mempool_create_slab_pool(int min_nr, struct kmem_cache *kc) -{ - return mempool_create(min_nr, mempool_alloc_slab, mempool_free_slab, - (void *) kc); -} - -/* - * a mempool_alloc_t and a mempool_free_t to kmalloc and kfree the - * amount of memory specified by pool_data - */ -void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data); -void mempool_kfree(void *element, void *pool_data); - -static inline int mempool_init_kmalloc_pool(mempool_t *pool, int min_nr, size_t size) -{ - return mempool_init(pool, min_nr, mempool_kmalloc, - mempool_kfree, (void *) size); -} - -static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size) -{ - return mempool_create(min_nr, mempool_kmalloc, mempool_kfree, - (void *) size); -} - -/* - * A mempool_alloc_t and mempool_free_t for a simple page allocator that - * allocates pages of the order specified by pool_data - */ -void *mempool_alloc_pages(gfp_t gfp_mask, void *pool_data); -void mempool_free_pages(void *element, void *pool_data); - -static inline int mempool_init_page_pool(mempool_t *pool, int min_nr, int order) -{ - return mempool_init(pool, min_nr, mempool_alloc_pages, - mempool_free_pages, (void *)(long)order); -} - -static inline mempool_t *mempool_create_page_pool(int min_nr, int order) -{ - return mempool_create(min_nr, mempool_alloc_pages, mempool_free_pages, - (void *)(long)order); -} - -#endif /* _LINUX_MEMPOOL_H */ |