From: Wei Yang <richard.weiyang@gmail.com>
Date: Fri, 28 Dec 2018 08:34:16 +0000 (-0800)
Subject: mm: remove reset of pcp->counter in pageset_init()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fecd4a50baaebf6bde7f9e0b88fef13ffe5d98a1;p=linux.git

mm: remove reset of pcp->counter in pageset_init()

per_cpu_pageset is cleared by memset, it is not necessary to reset it
again.

Link: http://lkml.kernel.org/r/20181021023920.5501-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ce9e88577bde0..c82c41edfe226 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5737,7 +5737,6 @@ static void pageset_init(struct per_cpu_pageset *p)
 	memset(p, 0, sizeof(*p));
 
 	pcp = &p->pcp;
-	pcp->count = 0;
 	for (migratetype = 0; migratetype < MIGRATE_PCPTYPES; migratetype++)
 		INIT_LIST_HEAD(&pcp->lists[migratetype]);
 }