linux-kernel - Re: [PATCH v2 3/3] bcache: Use of hlist_count

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Message-ID: <4myh2bosrpeom3aiwsdhlksly7l7k5fiabuwoblxr52k6dp5ua@xok4hlxudw23>
Date: Fri, 5 Jan 2024 14:55:18 +0800
From: Coly Li <colyli@...e.de>
To: Pierre Gondois <pierre.gondois@....com>
Cc: linux-kernel@...r.kernel.org, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Arve Hjønnevåg <arve@...roid.com>, 
	Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>, 
	Joel Fernandes <joel@...lfernandes.org>, Christian Brauner <brauner@...nel.org>, 
	Carlos Llamas <cmllamas@...gle.com>, Suren Baghdasaryan <surenb@...gle.com>, 
	Kent Overstreet <kent.overstreet@...il.com>, Marco Elver <elver@...gle.com>, 
	Kees Cook <keescook@...omium.org>, Lucas De Marchi <lucas.demarchi@...el.com>, 
	Ingo Molnar <mingo@...nel.org>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
	linux-bcache@...r.kernel.org
Subject: Re: [PATCH v2 3/3] bcache: Use of hlist_count_nodes()

On Thu, Jan 04, 2024 at 05:49:35PM +0100, Pierre Gondois wrote:
> Make use of the newly added hlist_count_nodes().
> 
> Signed-off-by: Pierre Gondois <pierre.gondois@....com>

Acked-by: Coly Li <colyli@...e.de>

Thanks.

> ---
>  drivers/md/bcache/sysfs.c | 8 +-------
>  1 file changed, 1 insertion(+), 7 deletions(-)
> 
> diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
> index a438efb66069..6956beb55326 100644
> --- a/drivers/md/bcache/sysfs.c
> +++ b/drivers/md/bcache/sysfs.c
> @@ -702,13 +702,7 @@ static unsigned int bch_cache_max_chain(struct cache_set *c)
>  	for (h = c->bucket_hash;
>  	     h < c->bucket_hash + (1 << BUCKET_HASH_BITS);
>  	     h++) {
> -		unsigned int i = 0;
> -		struct hlist_node *p;
> -
> -		hlist_for_each(p, h)
> -			i++;
> -
> -		ret = max(ret, i);
> +		ret = max(ret, hlist_count_nodes(h));
>  	}
>  
>  	mutex_unlock(&c->bucket_lock);
> -- 
> 2.25.1
> 
> 

-- 
Coly Li