Let's use pfn_to_online_page() instead of pfn_to_page() when checking for saveable pages to not save/restore offline memory sections. Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx> Cc: Pavel Machek <pavel@xxxxxx> Cc: Len Brown <len.brown@xxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx> Suggested-by: Michal Hocko <mhocko@xxxxxxxxxx> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx> --- kernel/power/snapshot.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index 640b2034edd6..87e6dd57819f 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -1215,8 +1215,8 @@ static struct page *saveable_highmem_page(struct zone *zone, unsigned long pfn) if (!pfn_valid(pfn)) return NULL; - page = pfn_to_page(pfn); - if (page_zone(page) != zone) + page = pfn_to_online_page(pfn); + if (!page || page_zone(page) != zone) return NULL; BUG_ON(!PageHighMem(page)); @@ -1277,8 +1277,8 @@ static struct page *saveable_page(struct zone *zone, unsigned long pfn) if (!pfn_valid(pfn)) return NULL; - page = pfn_to_page(pfn); - if (page_zone(page) != zone) + page = pfn_to_online_page(pfn); + if (!page || page_zone(page) != zone) return NULL; BUG_ON(PageHighMem(page)); -- 2.17.2
