From: zhongjiang <zhongjiang@huawei.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org
Subject: [PATCH] mm: walk the zone in pageblock_nr_pages steps
Date: Tue, 26 Jul 2016 11:08:45 +0800 [thread overview]
Message-ID: <1469502526-24486-1-git-send-email-zhongjiang@huawei.com> (raw)
From: zhong jiang <zhongjiang@huawei.com>
when walking the zone, we can happens to the holes. we should not
align MAX_ORDER_NR_PAGES, so it can skip the normal memory.
In addition, pagetypeinfo_showmixedcount_print reflect fragmentization.
we hope to get more accurate data. therefore, I decide to fix it.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
---
mm/vmstat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmstat.c b/mm/vmstat.c
index cb2a67b..3508f74 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1033,7 +1033,7 @@ static void pagetypeinfo_showmixedcount_print(struct seq_file *m,
*/
for (; pfn < end_pfn; ) {
if (!pfn_valid(pfn)) {
- pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES);
+ pfn = ALIGN(pfn + 1, pageblock_nr_pages);
continue;
}
--
1.8.3.1
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next reply other threads:[~2016-07-26 3:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-26 3:08 zhongjiang [this message]
2016-07-26 3:08 ` zhongjiang
2016-07-26 6:24 ` Vlastimil Babka
2016-07-26 8:31 ` zhong jiang
2016-07-26 8:53 ` Vlastimil Babka
2016-07-26 9:30 ` zhong jiang
2016-07-28 6:57 ` Joonsoo Kim
2016-07-28 7:23 ` zhong jiang
-- strict thread matches above, loose matches on Subject: below --
2016-07-23 12:26 zhongjiang
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