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 ce9e885..c82c41e 100644 (file)
--- 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]);
 }