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PM/Hibernate: use pfn_to_online_page()

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Let's use pfn_to_online_page() instead of pfn_to_page() when checking
for saveable pages to not save/restore offline memory sections.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: David Hildenbrand <[email protected]>
Suggested-by: Michal Hocko <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: "Michael S. Tsirkin" <[email protected]>
Cc: Alexander Duyck <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Baoquan He <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: Christian Hansen <[email protected]>
Cc: Dave Young <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Haiyang Zhang <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Julien Freche <[email protected]>
Cc: Kairui Song <[email protected]>
Cc: Kazuhito Hagio <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Konstantin Khlebnikov <[email protected]>
Cc: "K. Y. Srinivasan" <[email protected]>
Cc: Lianbo Jiang <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Miles Chen <[email protected]>
Cc: Nadav Amit <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Omar Sandoval <[email protected]>
Cc: Pankaj gupta <[email protected]>
Cc: Pavel Tatashin <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Stefano Stabellini <[email protected]>
Cc: Stephen Hemminger <[email protected]>
Cc: Stephen Rothwell <[email protected]>
Cc: Vitaly Kuznetsov <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Xavier Deguillard <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
David Hildenbrand 2019-03-05 15:42:45 -08:00 • committed by Linus Torvalds
commit 5b56db3721
1 changed files with 4 additions and 4 deletions
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8
kernel/power/snapshot.c
View file

@ -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));