linux-kernel - Re: [PATCH 2/5] mm/swap: remove unused local variable nr

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Message-ID: <YKPREjo49dP8mW2J@casper.infradead.org>
Date:   Tue, 18 May 2021 15:37:06 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH 2/5] mm/swap: remove unused local variable nr_shadows

On Tue, May 18, 2021 at 09:53:49PM +0800, Miaohe Lin wrote:
> Since commit 55c653b71e8c ("mm: stop accounting shadow entries"),
> nr_shadows is not used anymore.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>

Reviewed-by: Matthew Wilcox (Oracle) <willy@...radead.org>

> +++ b/mm/swap_state.c
> @@ -114,7 +114,6 @@ int add_to_swap_cache(struct page *page, swp_entry_t entry,
>  	SetPageSwapCache(page);
>  
>  	do {
> -		unsigned long nr_shadows = 0;
>  

Perhaps delete the blank line as well?