From: zhongjiang <zhongjiang@huawei.com>
To: akpm@linux-foundation.org
Cc: vbabka@suse.cz, mhocko@suse.cz, qiuxishi@huawei.com,
linux-mm@kvack.org, zhongjiang@huawei.com
Subject: [RFC PATCH] mm: fix mlock incorrent event account
Date: Thu, 25 May 2017 15:59:39 +0800 [thread overview]
Message-ID: <1495699179-7566-1-git-send-email-zhongjiang@huawei.com> (raw)
From: zhong jiang <zhongjiang@huawei.com>
when clear_page_mlock call, we had finish the page isolate successfully,
but it fails to increase the UNEVICTABLE_PGMUNLOCKED account.
The patch add the event account when successful page isolation.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
---
mm/mlock.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/mlock.c b/mm/mlock.c
index c483c5c..941930b 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -64,6 +64,7 @@ void clear_page_mlock(struct page *page)
-hpage_nr_pages(page));
count_vm_event(UNEVICTABLE_PGCLEARED);
if (!isolate_lru_page(page)) {
+ count_vm_event(UNEVICTABLE_PGMUNLOCKED);
putback_lru_page(page);
} else {
/*
--
1.8.3.1
--
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next reply other threads:[~2017-05-25 8:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-25 7:59 zhongjiang [this message]
2017-05-25 8:13 ` Michal Hocko
2017-05-25 12:14 ` zhong jiang
2017-05-25 13:48 ` zhong jiang
2017-05-25 14:19 ` Michal Hocko
2017-05-26 3:57 ` zhong jiang
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