Re: [PATCH 2/3] kmemleak: replace list_for_each_continue_rcu withnew interface

From: Paul E. McKenney
Date: Mon Aug 20 2012 - 20:02:35 EST


On Fri, Aug 17, 2012 at 12:33:34PM +0800, Michael Wang wrote:
> From: Michael Wang <wangyun@xxxxxxxxxxxxxxxxxx>
>
> This patch replaces list_for_each_continue_rcu() with
> list_for_each_entry_continue_rcu() to save a few lines
> of code and allow removing list_for_each_continue_rcu().
>
> Signed-off-by: Michael Wang <wangyun@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

> ---
> mm/kmemleak.c | 6 ++----
> 1 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/mm/kmemleak.c b/mm/kmemleak.c
> index 45eb621..0de83b4 100644
> --- a/mm/kmemleak.c
> +++ b/mm/kmemleak.c
> @@ -1483,13 +1483,11 @@ static void *kmemleak_seq_next(struct seq_file *seq, void *v, loff_t *pos)
> {
> struct kmemleak_object *prev_obj = v;
> struct kmemleak_object *next_obj = NULL;
> - struct list_head *n = &prev_obj->object_list;
> + struct kmemleak_object *obj = prev_obj;
>
> ++(*pos);
>
> - list_for_each_continue_rcu(n, &object_list) {
> - struct kmemleak_object *obj =
> - list_entry(n, struct kmemleak_object, object_list);
> + list_for_each_entry_continue_rcu(obj, &object_list, object_list) {
> if (get_object(obj)) {
> next_obj = obj;
> break;
> --
> 1.7.4.1
>
>

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