Thread (29 messages) 29 messages, 9 authors, 2018-11-16

Re: [PATCH RFC 6/6] PM / Hibernate: exclude all PageOffline() pages

From: Pavel Machek <hidden>
Date: 2018-11-15 17:54:56
Also in: linux-fsdevel, linux-mm, linux-pm, lkml

On Wed 2018-11-14 22:17:04, David Hildenbrand wrote:
The content of pages that are marked PG_offline is not of interest
(e.g. inflated by a balloon driver), let's skip these pages.

Cc: "Rafael J. Wysocki" <redacted>
Acked-by: Pavel Machek <redacted>
quoted hunk ↗ jump to hunk
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index b0308a2c6000..01db1d13481a 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1222,7 +1222,7 @@ static struct page *saveable_highmem_page(struct zone *zone, unsigned long pfn)
 	BUG_ON(!PageHighMem(page));
 
 	if (swsusp_page_is_forbidden(page) ||  swsusp_page_is_free(page) ||
-	    PageReserved(page))
+	    PageReserved(page) || PageOffline(page))
 		return NULL;
 
 	if (page_is_guard(page))
@@ -1286,6 +1286,9 @@ static struct page *saveable_page(struct zone *zone, unsigned long pfn)
 	if (swsusp_page_is_forbidden(page) || swsusp_page_is_free(page))
 		return NULL;
 
+	if (PageOffline(page))
+		return NULL;
+
 	if (PageReserved(page)
 	    && (!kernel_page_present(page) || pfn_is_nosave(pfn)))
 		return NULL;
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

Attachments

Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help