From: Shaohua Li <shaohua.li@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm <linux-mm@kvack.org>
Subject: [patch]mm: initialize zone all_unreclaimable
Date: Mon, 26 Sep 2011 16:11:52 +0800 [thread overview]
Message-ID: <1317024712.29510.178.camel@sli10-conroe> (raw)
I saw DMA zone is always unreclaimable in my system. zone->all_unreclaimable
isn't initialized till a page from the zone is freed. This isn't a big problem
normally, but a little confused, so fix here.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6e8ecb6..1facc05 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4335,6 +4335,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
zone_pcp_init(zone);
for_each_lru(l)
INIT_LIST_HEAD(&zone->lru[l].list);
+ zone->all_unreclaimable = 0;
zone->reclaim_stat.recent_rotated[0] = 0;
zone->reclaim_stat.recent_rotated[1] = 0;
zone->reclaim_stat.recent_scanned[0] = 0;
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next reply other threads:[~2011-09-26 8:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-26 8:11 Shaohua Li [this message]
2011-09-26 13:23 ` [patch]mm: initialize zone all_unreclaimable Michal Hocko
2011-09-26 22:52 ` Andrew Morton
2011-09-27 1:10 ` Shaohua Li
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