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Subject[PATCH v1 2/2] kdump: include PG_reserved value in VMCOREINFO
Date
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 <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
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
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