To allow filtering of huge pages, makedumpfile must be able to identify
them in the dump. This can be done by checking for the appropriate
page flag, so communicate its value to makedumpfile through the VMCOREINFO
interface.
Signed-off-by: Petr Tesarik <ptesa...@suse.cz>
---
kernel/kexec.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1511,6 +1511,11 @@ static int __init crash_save_vmcoreinfo_
VMCOREINFO_NUMBER(NR_FREE_PAGES);
VMCOREINFO_NUMBER(PG_lru);
VMCOREINFO_NUMBER(PG_private);
+#ifdef CONFIG_PAGEFLAGS_EXTENDED
+ VMCOREINFO_NUMBER(PG_head);
+#else
+ VMCOREINFO_NUMBER(PG_compound);
+#endif
VMCOREINFO_NUMBER(PG_swapcache);
arch_crash_save_vmcoreinfo();
--
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