+ mm-skip-hwpoisoned-pages-when-onlining-pages.patch added to -mm tree

+ mm-skip-hwpoisoned-pages-when-onlining-pages.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm: skip HWPoisoned pages when onlining pages
has been added to the -mm tree.  Its filename is
     mm-skip-hwpoisoned-pages-when-onlining-pages.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-skip-hwpoisoned-pages-when-onlining-pages.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-skip-hwpoisoned-pages-when-onlining-pages.patch

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------------------------------------------------------
From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Subject: mm: skip HWPoisoned pages when onlining pages

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

Link: http://lkml.kernel.org/r/1493130472-22843-3-git-send-email-ldufour@linux.vnet.ibm.com
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andrey Vagin <avagin@openvz.org>
Cc: Glauber Costa <glommer@openvz.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memory_hotplug.c |    4 ++++
 1 file changed, 4 insertions(+)

diff -puN mm/memory_hotplug.c~mm-skip-hwpoisoned-pages-when-onlining-pages mm/memory_hotplug.c
--- a/mm/memory_hotplug.c~mm-skip-hwpoisoned-pages-when-onlining-pages
+++ a/mm/memory_hotplug.c
@@ -942,6 +942,10 @@ static int online_pages_range(unsigned l
 	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++;
 		}
_

Patches currently in -mm which might be from ldufour@linux.vnet.ibm.com are

mm-uncharge-poisoned-pages.patch
mm-skip-hwpoisoned-pages-when-onlining-pages.patch