Hi Kaixu,
On Thu, 15 Sep 2022 19:33:41 +0800 xiakaixu1987@xxxxxxxxx wrote:
> From: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
>
> We could use 'struct damon_target *' directly instead of 'void *' in
> target_valid() operation to make code simple.
Nice finding.
>
> Signed-off-by: Kaixu Xia <kaixuxia@xxxxxxxxxxx>
Reviewed-by: SeongJae Park <sj@xxxxxxxxxx>
Thanks,
SJ
> ---
> include/linux/damon.h | 2 +-
> mm/damon/vaddr.c | 3 +--
> 2 files changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/damon.h b/include/linux/damon.h
> index c5dc0c77c772..1dda8d0068e5 100644
> --- a/include/linux/damon.h
> +++ b/include/linux/damon.h
> @@ -346,7 +346,7 @@ struct damon_operations {
> unsigned long (*apply_scheme)(struct damon_ctx *context,
> struct damon_target *t, struct damon_region *r,
> struct damos *scheme);
> - bool (*target_valid)(void *target);
> + bool (*target_valid)(struct damon_target *t);
> void (*cleanup)(struct damon_ctx *context);
> };
>
> diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
> index 3f84584f9982..f53c2ff2bcc8 100644
> --- a/mm/damon/vaddr.c
> +++ b/mm/damon/vaddr.c
> @@ -593,9 +593,8 @@ static unsigned int damon_va_check_accesses(struct damon_ctx *ctx)
> * Functions for the target validity check and cleanup
> */
>
> -static bool damon_va_target_valid(void *target)
> +static bool damon_va_target_valid(struct damon_target *t)
> {
> - struct damon_target *t = target;
> struct task_struct *task;
>
> task = damon_get_task_struct(t);
> --
> 2.27.0
>
