[PATCH] kexec-export-free_huge_page-to-vmcoreinfo-fix (was: Re: mmotm 2014-07-30-15-57 uploaded)

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On Wed 30-07-14 15:58:50, Andrew Morton wrote:
> * kexec-export-free_huge_page-to-vmcoreinfo.patch

This one seems to be missing ifdef for CONFIG_HUGETLBFS
---
>From bcccb6696b89c700712421858b05dd89ea0d1ec5 Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@xxxxxxx>
Date: Thu, 31 Jul 2014 11:18:57 +0200
Subject: [PATCH] kexec-export-free_huge_page-to-vmcoreinfo-fix
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free_huge_page is not defined for !CONFIG_HUGETLBFS. Fix the following
compilation error:

kernel/kexec.c: In function ‘crash_save_vmcoreinfo_init’:
kernel/kexec.c:1628:20: error: ‘free_huge_page’ undeclared (first use in this function)
  VMCOREINFO_SYMBOL(free_huge_page);

Signed-off-by: Michal Hocko <mhocko@xxxxxxx>
---
 kernel/kexec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/kexec.c b/kernel/kexec.c
index a3ccf9d7174b..507614acf938 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1625,7 +1625,9 @@ static int __init crash_save_vmcoreinfo_init(void)
 #endif
 	VMCOREINFO_NUMBER(PG_head_mask);
 	VMCOREINFO_NUMBER(PAGE_BUDDY_MAPCOUNT_VALUE);
+#ifdef CONFIG_HUGETLBFS
 	VMCOREINFO_SYMBOL(free_huge_page);
+#endif
 
 	arch_crash_save_vmcoreinfo();
 	update_vmcoreinfo_note();
-- 
2.0.1

-- 
Michal Hocko
SUSE Labs
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