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

From: David Hildenbrand <david@redhat.com>
To: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org,
	David Hildenbrand <david@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Young <dyoung@redhat.com>, Baoquan He <bhe@redhat.com>,
	Hari Bathini <hbathini@linux.vnet.ibm.com>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCH v1 04/10] kdump: include PAGE_OFFLINE_MAPCOUNT_VALUE in VMCOREINFO
Date: Wed, 23 May 2018 17:11:45 +0200	[thread overview]
Message-ID: <20180523151151.6730-5-david@redhat.com> (raw)
In-Reply-To: <20180523151151.6730-1-david@redhat.com>

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(+)

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();
-- 
2.17.0
