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
- signature.asc [application/pgp-signature] 181 bytes