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[v1,04/10] kdump: include PAGE_OFFLINE_MAPCOUNT_VALUE in VMCOREINFO

Message ID 20180523151151.6730-5-david@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

David Hildenbrand May 23, 2018, 3:11 p.m. UTC 
This allows dump tools to skip pages that are offline.

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>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 kernel/crash_core.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index f7674d676889..c0a45e9ba84e 100644
--- a/kernel/crash_core.c
+++ b/kernel/crash_core.c
@@ -464,6 +464,7 @@  static int __init crash_save_vmcoreinfo_init(void)
 #ifdef CONFIG_HUGETLB_PAGE
 	VMCOREINFO_NUMBER(HUGETLB_PAGE_DTOR);
 #endif
+	VMCOREINFO_NUMBER(PAGE_OFFLINE_MAPCOUNT_VALUE);
 
 	arch_crash_save_vmcoreinfo();
 	update_vmcoreinfo_note();