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From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	akpm@linux-foundation.org
Subject: [PATCH v2 2/2] mm: skip HWPoisoned pages when onlining pages
Date: Tue, 25 Apr 2017 16:27:52 +0200	[thread overview]
Message-ID: <1493130472-22843-3-git-send-email-ldufour@linux.vnet.ibm.com> (raw)
In-Reply-To: <1493130472-22843-1-git-send-email-ldufour@linux.vnet.ibm.com>

The commit b023f46813cd ("memory-hotplug: skip HWPoisoned page when
offlining pages") skip the HWPoisoned pages when offlining pages, but
this should be skipped when onlining the pages too.

Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
---
 mm/memory_hotplug.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 6fa7208bcd56..741ddb50e7d2 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -942,6 +942,10 @@ static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages,
 	if (PageReserved(pfn_to_page(start_pfn)))
 		for (i = 0; i < nr_pages; i++) {
 			page = pfn_to_page(start_pfn + i);
+			if (PageHWPoison(page)) {
+				ClearPageReserved(page);
+				continue;
+			}
 			(*online_page_callback)(page);
 			onlined_pages++;
 		}
-- 
2.7.4

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  parent reply	other threads:[~2017-04-25 14:28 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-25 14:27 [PATCH v2 0/2] BUG raised when onlining HWPoisoned page Laurent Dufour
2017-04-25 14:27 ` [PATCH v2 1/2] mm: Uncharge poisoned pages Laurent Dufour
2017-04-25 23:48   ` Naoya Horiguchi
2017-04-26  1:54   ` Balbir Singh
2017-04-26  2:34     ` Naoya Horiguchi
2017-04-26  3:45       ` Balbir Singh
2017-04-26  4:46         ` Naoya Horiguchi
2017-04-26  8:59           ` Balbir Singh
2017-04-28  9:32             ` Laurent Dufour
2017-04-27 14:37   ` Michal Hocko
2017-04-27 20:51     ` Andi Kleen
2017-04-28  6:07       ` Michal Hocko
2017-04-28  7:31         ` Michal Hocko
2017-04-28  9:17           ` Laurent Dufour
2017-04-28 13:48             ` Michal Hocko
2017-05-02 14:59               ` Laurent Dufour
2017-05-02 18:55                 ` Michal Hocko
2017-05-03 11:34                   ` Laurent Dufour
2017-05-04  1:21                   ` Balbir Singh
2017-05-08 10:42                     ` Laurent Dufour
2017-05-09  1:41                       ` Balbir Singh
2017-05-08  2:58                   ` Naoya Horiguchi
2017-05-09  9:18                     ` Michal Hocko
2017-05-09 22:59                       ` Naoya Horiguchi
2017-04-25 14:27 ` Laurent Dufour [this message]
2017-04-26  2:10   ` [PATCH v2 2/2] mm: skip HWPoisoned pages when onlining pages Balbir Singh
2017-04-26  3:13     ` Naoya Horiguchi
2017-04-28  2:51       ` Balbir Singh
2017-04-28  6:30       ` Michal Hocko
2017-04-28  6:50         ` Michal Hocko
2017-04-28  6:51           ` Michal Hocko
2017-05-10  7:41             ` Michal Hocko
2018-01-17 23:03         ` Andrew Morton
2018-01-23 18:15           ` Laurent Dufour

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