On Wed, 27 Sep 2006 10:35:45 -0500 Steve Wise wrote:
> Modules using the genpool allocator need to be able to destroy the data
> structure when unloading.
>
> Signed-off-by: Steve Wise <[email protected]>
> ---
>
> include/linux/genalloc.h | 1 +
> lib/genalloc.c | 22 ++++++++++++++++++++++
> 2 files changed, 23 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
> index 690c428..ca2b119 100644
> --- a/include/linux/genalloc.h
> +++ b/include/linux/genalloc.h
> @@ -30,6 +30,7 @@ struct gen_pool_chunk {
> };
>
> extern struct gen_pool *gen_pool_create(int, int);
> +extern void gen_pool_destroy(struct gen_pool *);
> extern int gen_pool_add(struct gen_pool *, unsigned long, size_t, int);
> extern unsigned long gen_pool_alloc(struct gen_pool *, size_t);
> extern void gen_pool_free(struct gen_pool *, unsigned long, size_t);
> diff --git a/lib/genalloc.c b/lib/genalloc.c
> index 71338b4..c8afa10 100644
> --- a/lib/genalloc.c
> +++ b/lib/genalloc.c
> @@ -36,6 +36,28 @@ EXPORT_SYMBOL(gen_pool_create);
>
>
> /*
> + * Destroy a memory pool. Assumes the user deals with releasing the
> + * actual memory managed by the pool.
> + *
> + * @pool: pool to destroy.
> + *
> + */
Please use kernel-doc for exported kernel interfaces.
See Documentation/kernel-doc-nano-HOWTO.txt for info,
and/or see some file like kernel/printk.c for examples.
> +void gen_pool_destroy(struct gen_pool *pool)
> +{
> + struct list_head *_chunk, *next;
> + struct gen_pool_chunk *chunk;
> +
> + list_for_each_safe(_chunk, next, &pool->chunks) {
> + chunk = list_entry(_chunk, struct gen_pool_chunk, next_chunk);
> + kfree(chunk);
> + }
> + kfree(pool);
> + return;
> +}
> +EXPORT_SYMBOL(gen_pool_destroy);
> +
> +
> +/*
> * Add a new chunk of memory to the specified pool.
> *
> * @pool: pool to add new memory chunk to
> -
argh. more. (not part of your patch)
---
~Randy
-
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