Re: [PATCH 2/3] zswap: Improve a size determination in zswap_frontswap_init()

From: Dan Streetman
Date: Tue May 30 2017 - 19:20:23 EST


On Sun, May 21, 2017 at 4:26 AM, SF Markus Elfring
<elfring@xxxxxxxxxxxxxxxxxxxxx> wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Sat, 20 May 2017 22:44:03 +0200
>
> Replace the specification of a data structure by a pointer dereference
> as the parameter for the operator "sizeof" to make the corresponding size
> determination a bit safer according to the Linux coding style convention.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>

Acked-by: Dan Streetman <ddstreet@xxxxxxxx>

> ---
> mm/zswap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/zswap.c b/mm/zswap.c
> index 18d8e87119a6..a6e67633be03 100644
> --- a/mm/zswap.c
> +++ b/mm/zswap.c
> @@ -1156,5 +1156,5 @@ static void zswap_frontswap_init(unsigned type)
> {
> struct zswap_tree *tree;
>
> - tree = kzalloc(sizeof(struct zswap_tree), GFP_KERNEL);
> + tree = kzalloc(sizeof(*tree), GFP_KERNEL);
> if (!tree) {
> --
> 2.13.0
>