On Wed, May 07, 2014 at 05:51:34PM -0400, Dan Streetman wrote:
> Change the type of the zbud_alloc() size param from unsigned int
> to size_t.
>
> Technically, this should not make any difference, as the zbud
> implementation already restricts the size to well within either
> type's limits; but as zsmalloc (and kmalloc) use size_t, and
> zpool will use size_t, this brings the size parameter type
> in line with zsmalloc/zpool.
Acked-by: Seth Jennings <sjennings@xxxxxxxxxxxxxx>
>
> Signed-off-by: Dan Streetman <ddstreet@xxxxxxxx>
> Cc: Seth Jennings <sjennings@xxxxxxxxxxxxxx>
> Cc: Weijie Yang <weijie.yang@xxxxxxxxxxx>
> ---
>
> While the rest of the patches in this set are v2, this is new for
> the set; previously a patch to implement zsmalloc shrinking was
> here, but that's removed. This patch instead changes the
> zbud_alloc() size parameter type from unsigned int to size_t, to
> be the same as the zsmalloc and zpool size param type.
>
> include/linux/zbud.h | 2 +-
> mm/zbud.c | 5 ++---
> 2 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/include/linux/zbud.h b/include/linux/zbud.h
> index 0b2534e..1e9cb57 100644
> --- a/include/linux/zbud.h
> +++ b/include/linux/zbud.h
> @@ -11,7 +11,7 @@ struct zbud_ops {
>
> struct zbud_pool *zbud_create_pool(gfp_t gfp, struct zbud_ops *ops);
> void zbud_destroy_pool(struct zbud_pool *pool);
> -int zbud_alloc(struct zbud_pool *pool, unsigned int size,
> +int zbud_alloc(struct zbud_pool *pool, size_t size,
> unsigned long *handle);
> void zbud_free(struct zbud_pool *pool, unsigned long handle);
> int zbud_reclaim_page(struct zbud_pool *pool, unsigned int retries);
> diff --git a/mm/zbud.c b/mm/zbud.c
> index 847c01c..dd13665 100644
> --- a/mm/zbud.c
> +++ b/mm/zbud.c
> @@ -123,7 +123,7 @@ enum buddy {
> };
>
> /* Converts an allocation size in bytes to size in zbud chunks */
> -static int size_to_chunks(int size)
> +static int size_to_chunks(size_t size)
> {
> return (size + CHUNK_SIZE - 1) >> CHUNK_SHIFT;
> }
> @@ -250,8 +250,7 @@ void zbud_destroy_pool(struct zbud_pool *pool)
> * -EINVAL if the @size is 0, or -ENOMEM if the pool was unable to
> * allocate a new page.
> */
> -int zbud_alloc(struct zbud_pool *pool, unsigned int size,
> - unsigned long *handle)
> +int zbud_alloc(struct zbud_pool *pool, size_t size, unsigned long *handle)
> {
> int chunks, i, freechunks;
> struct zbud_header *zhdr = NULL;
> --
> 1.8.3.1
>
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