PG_reserved pages should never be touched by enybody except their owner.
Let's allow dumping tools to skip these pages.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Young <redacted>
Cc: Baoquan He <redacted>
Cc: Hari Bathini <redacted>
Cc: "Kirill A. Shutemov" <redacted>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: David Hildenbrand <redacted>
---
 kernel/crash_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index b66aced5e8c2..ab216accf96a 100644
--- a/kernel/crash_core.c
+++ b/kernel/crash_core.c

@@ -451,6 +451,7 @@ static int __init crash_save_vmcoreinfo_init(void)
 	log_buf_vmcoreinfo_setup();
 	VMCOREINFO_LENGTH(free_area.free_list, MIGRATE_TYPES);
 	VMCOREINFO_NUMBER(NR_FREE_PAGES);
+	VMCOREINFO_NUMBER(PG_reserved);
 	VMCOREINFO_NUMBER(PG_lru);
 	VMCOREINFO_NUMBER(PG_private);
 	VMCOREINFO_NUMBER(PG_swapcache);

-- 
2.17.1