The patch titled
Subject: kdump: include PG_reserved value in VMCOREINFO
has been added to the -mm tree. Its filename is
kdump-include-pg_reserved-value-in-vmcoreinfo.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kdump-include-pg_reserved-value-in-vmcoreinfo.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kdump-include-pg_reserved-value-in-vmcoreinfo.patch
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The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: David Hildenbrand <david@xxxxxxxxxx>
Subject: kdump: include PG_reserved value in VMCOREINFO
PG_reserved pages should never be touched by enybody except their owner.
Let's allow dumping tools to skip these pages.
Link: http://lkml.kernel.org/r/20180720123422.10127-3-david@xxxxxxxxxx
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Dave Young <dyoung@xxxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Cc: Hari Bathini <hbathini@xxxxxxxxxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Huang Ying <ying.huang@xxxxxxxxx>
Cc: "Marc-André Lureau" <marcandre.lureau@xxxxxxxxxx>
Cc: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Miles Chen <miles.chen@xxxxxxxxxxxx>
Cc: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>
Cc: Petr Tesarik <ptesarik@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/crash_core.c | 1 +
1 file changed, 1 insertion(+)
diff -puN kernel/crash_core.c~kdump-include-pg_reserved-value-in-vmcoreinfo kernel/crash_core.c
--- a/kernel/crash_core.c~kdump-include-pg_reserved-value-in-vmcoreinfo
+++ a/kernel/crash_core.c
@@ -451,6 +451,7 @@ static int __init crash_save_vmcoreinfo_
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);
_
Patches currently in -mm which might be from david@xxxxxxxxxx are
mm-clarify-semantics-of-reserved-pages.patch
kdump-include-pg_reserved-value-in-vmcoreinfo.patch
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