linux-kernel - Re: [PATCH 06/12] mm: page_alloc: remove alloc_contig_dump

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Message-ID: <20230509164851.GD4135@kernel.org>
Date:   Tue, 9 May 2023 09:48:51 -0700
From:   Mike Rapoport <rppt@...nel.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 06/12] mm: page_alloc: remove alloc_contig_dump_pages()
 stub

On Mon, May 08, 2023 at 03:11:54PM +0800, Kefeng Wang wrote:
> DEFINE_DYNAMIC_DEBUG_METADATA and DYNAMIC_DEBUG_BRANCH already has
> stub definitions without dynamic debug feature, remove unnecessary
> alloc_contig_dump_pages() stub.
> 
> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>

Reviewed-by: Mike Rapoport (IBM) <rppt@...nel.org>

> ---
>  mm/page_alloc.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 348dcbaca757..bc453edbad21 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -6161,8 +6161,6 @@ int percpu_pagelist_high_fraction_sysctl_handler(struct ctl_table *table,
>  }
>  
>  #ifdef CONFIG_CONTIG_ALLOC
> -#if defined(CONFIG_DYNAMIC_DEBUG) || \
> -	(defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
>  /* Usage: See admin-guide/dynamic-debug-howto.rst */
>  static void alloc_contig_dump_pages(struct list_head *page_list)
>  {
> @@ -6176,11 +6174,6 @@ static void alloc_contig_dump_pages(struct list_head *page_list)
>  			dump_page(page, "migration failure");
>  	}
>  }
> -#else
> -static inline void alloc_contig_dump_pages(struct list_head *page_list)
> -{
> -}
> -#endif
>  
>  /* [start, end) must belong to a single zone. */
>  int __alloc_contig_migrate_range(struct compact_control *cc,
> -- 
> 2.35.3
>