From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/linux/mempool.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 include/linux/mempool.h (limited to 'include/linux/mempool.h') diff --git a/include/linux/mempool.h b/include/linux/mempool.h new file mode 100644 index 000000000000..4a36edf1c974 --- /dev/null +++ b/include/linux/mempool.h @@ -0,0 +1,37 @@ +/* + * memory buffer pool support + */ +#ifndef _LINUX_MEMPOOL_H +#define _LINUX_MEMPOOL_H + +#include + +typedef void * (mempool_alloc_t)(unsigned int __nocast 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; +extern mempool_t * mempool_create(int min_nr, mempool_alloc_t *alloc_fn, + mempool_free_t *free_fn, void *pool_data); +extern int mempool_resize(mempool_t *pool, int new_min_nr, unsigned int __nocast gfp_mask); +extern void mempool_destroy(mempool_t *pool); +extern void * mempool_alloc(mempool_t *pool, unsigned int __nocast gfp_mask); +extern void mempool_free(void *element, mempool_t *pool); + +/* + * A mempool_alloc_t and mempool_free_t that get the memory from + * a slab that is passed in through pool_data. + */ +void *mempool_alloc_slab(unsigned int __nocast gfp_mask, void *pool_data); +void mempool_free_slab(void *element, void *pool_data); + +#endif /* _LINUX_MEMPOOL_H */ -- cgit v1.2.3-59-g8ed1b