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[v2,5/5] mm: remove unneeded local variable in free_area_init_core

Message ID 20201220082754.6900-6-bhe@redhat.com (mailing list archive)
State New
Headers show
Series Fix the incorrect memmep defer init handling and do some cleanup | expand

Commit Message

Baoquan He Dec. 20, 2020, 8:27 a.m. UTC
Local variable 'zone_start_pfn' is not needed since there's only
one call site in free_area_init_core(). Let's remove it and pass
zone->zone_start_pfn directly to init_currently_empty_zone().

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 mm/page_alloc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Mike Rapoport Dec. 21, 2020, 6:35 a.m. UTC | #1
On Sun, Dec 20, 2020 at 04:27:54PM +0800, Baoquan He wrote:
> Local variable 'zone_start_pfn' is not needed since there's only
> one call site in free_area_init_core(). Let's remove it and pass
> zone->zone_start_pfn directly to init_currently_empty_zone().
> 
> Signed-off-by: Baoquan He <bhe@redhat.com>

Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>

> ---
>  mm/page_alloc.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 7f0a917ab858..189a86253c93 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -6986,7 +6986,6 @@ static void __init free_area_init_core(struct pglist_data *pgdat)
>  	for (j = 0; j < MAX_NR_ZONES; j++) {
>  		struct zone *zone = pgdat->node_zones + j;
>  		unsigned long size, freesize, memmap_pages;
> -		unsigned long zone_start_pfn = zone->zone_start_pfn;
>  
>  		size = zone->spanned_pages;
>  		freesize = zone->present_pages;
> @@ -7035,7 +7034,7 @@ static void __init free_area_init_core(struct pglist_data *pgdat)
>  
>  		set_pageblock_order();
>  		setup_usemap(zone);
> -		init_currently_empty_zone(zone, zone_start_pfn, size);
> +		init_currently_empty_zone(zone, zone->zone_start_pfn, size);
>  		memmap_init_zone(zone);
>  	}
>  }
> -- 
> 2.17.2
>
diff mbox series

Patch

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7f0a917ab858..189a86253c93 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6986,7 +6986,6 @@  static void __init free_area_init_core(struct pglist_data *pgdat)
 	for (j = 0; j < MAX_NR_ZONES; j++) {
 		struct zone *zone = pgdat->node_zones + j;
 		unsigned long size, freesize, memmap_pages;
-		unsigned long zone_start_pfn = zone->zone_start_pfn;
 
 		size = zone->spanned_pages;
 		freesize = zone->present_pages;
@@ -7035,7 +7034,7 @@  static void __init free_area_init_core(struct pglist_data *pgdat)
 
 		set_pageblock_order();
 		setup_usemap(zone);
-		init_currently_empty_zone(zone, zone_start_pfn, size);
+		init_currently_empty_zone(zone, zone->zone_start_pfn, size);
 		memmap_init_zone(zone);
 	}
 }