linux-kernel - Re: [PATCH tip/core/rcu 15/15] kmemleak: Replace list_for_each_continue

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Message-ID: <20120831185516.GO4259@jtriplet-mobl1>
Date:	Fri, 31 Aug 2012 11:55:16 -0700
From:	Josh Triplett <josh@...htriplett.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
	fweisbec@...il.com, sbw@....edu, patches@...aro.org,
	Michael Wang <wangyun@...ux.vnet.ibm.com>
Subject: Re: [PATCH tip/core/rcu 15/15] kmemleak: Replace
 list_for_each_continue_rcu with new interface

On Thu, Aug 30, 2012 at 11:56:28AM -0700, Paul E. McKenney wrote:
> From: Michael Wang <wangyun@...ux.vnet.ibm.com>
> 
> 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@...ux.vnet.ibm.com>
> Acked-by: Catalin Marinas <catalin.marinas@....com>
> Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>

Reviewed-by: Josh Triplett <josh@...htriplett.org>

> ---
>  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;
> -- 
> 1.7.8
> 
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