linux-kernel - [PATCH] mm/page_alloc: remove unused struct zone *z variable

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Message-Id: <1452239948-1012-1-git-send-email-kuleshovmail@gmail.com>
Date:	Fri,  8 Jan 2016 13:59:08 +0600
From:	Alexander Kuleshov <kuleshovmail@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Mel Gorman <mgorman@...hsingularity.net>,
	Michal Hocko <mhocko@...e.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <js1304@...il.com>,
	Yaowei Bai <bywxiaobai@....com>,
	Xishi Qiu <qiuxishi@...wei.com>,
	Alexander Duyck <alexander.h.duyck@...hat.com>,
	"Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
	Johannes Weiner <hannes@...xchg.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Alexander Kuleshov <kuleshovmail@...il.com>
Subject: [PATCH] mm/page_alloc: remove unused struct zone *z variable

This patch removes unused struct zone *z variable which is
appeared in 86051ca5eaf5 (mm: fix usemap initialization)

Signed-off-by: Alexander Kuleshov <kuleshovmail@...il.com>
---
 mm/page_alloc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9d666df..9bde098 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4471,13 +4471,11 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
 	pg_data_t *pgdat = NODE_DATA(nid);
 	unsigned long end_pfn = start_pfn + size;
 	unsigned long pfn;
-	struct zone *z;
 	unsigned long nr_initialised = 0;
 
 	if (highest_memmap_pfn < end_pfn - 1)
 		highest_memmap_pfn = end_pfn - 1;
 
-	z = &pgdat->node_zones[zone];
 	for (pfn = start_pfn; pfn < end_pfn; pfn++) {
 		/*
 		 * There can be holes in boot-time mem_map[]s
-- 
2.6.2.485.g1bc8fea