linux-kernel - Re: [PATCH v2 5/5] mm: Rename zone_statistics() to numa

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Message-ID: <20171219124401.GQ2787@dhcp22.suse.cz>
Date:   Tue, 19 Dec 2017 13:44:01 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Kemi Wang <kemi.wang@...el.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Johannes Weiner <hannes@...xchg.org>,
        Christopher Lameter <cl@...ux.com>,
        YASUAKI ISHIMATSU <yasu.isimatu@...il.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Nikolay Borisov <nborisov@...e.com>,
        Pavel Tatashin <pasha.tatashin@...cle.com>,
        David Rientjes <rientjes@...gle.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Dave <dave.hansen@...ux.intel.com>,
        Andi Kleen <andi.kleen@...el.com>,
        Tim Chen <tim.c.chen@...el.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Ying Huang <ying.huang@...el.com>,
        Aaron Lu <aaron.lu@...el.com>, Aubrey Li <aubrey.li@...el.com>,
        Linux MM <linux-mm@...ck.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 5/5] mm: Rename zone_statistics() to numa_statistics()

On Tue 19-12-17 14:39:26, Kemi Wang wrote:
> Since the functionality of zone_statistics() updates numa counters, but
> numa statistics has been separated from zone statistics framework. Thus,
> the function name makes people confused. So, change the name to
> numa_statistics() as well as its call sites accordingly.
> 
> Signed-off-by: Kemi Wang <kemi.wang@...el.com>

Acked-by: Michal Hocko <mhocko@...e.com>

> ---
>  mm/page_alloc.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 81e8d8f..f7583de 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -2790,7 +2790,7 @@ int __isolate_free_page(struct page *page, unsigned int order)
>   *
>   * Must be called with interrupts disabled.
>   */
> -static inline void zone_statistics(struct zone *preferred_zone, struct zone *z)
> +static inline void numa_statistics(struct zone *preferred_zone, struct zone *z)
>  {
>  #ifdef CONFIG_NUMA
>  	int preferred_nid = preferred_zone->node;
> @@ -2854,7 +2854,7 @@ static struct page *rmqueue_pcplist(struct zone *preferred_zone,
>  	page = __rmqueue_pcplist(zone,  migratetype, pcp, list);
>  	if (page) {
>  		__count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order);
> -		zone_statistics(preferred_zone, zone);
> +		numa_statistics(preferred_zone, zone);
>  	}
>  	local_irq_restore(flags);
>  	return page;
> @@ -2902,7 +2902,7 @@ struct page *rmqueue(struct zone *preferred_zone,
>  				  get_pcppage_migratetype(page));
>  
>  	__count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order);
> -	zone_statistics(preferred_zone, zone);
> +	numa_statistics(preferred_zone, zone);
>  	local_irq_restore(flags);
>  
>  out:
> -- 
> 2.7.4
> 

-- 
Michal Hocko
SUSE Labs