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Subject[PATCH] kexec-export-free_huge_page-to-vmcoreinfo-fix (was: Re: mmotm 2014-07-30-15-57 uploaded)
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@suse.cz>
Date: Thu, 31 Jul 2014 11:18:57 +0200
Subject: [PATCH] kexec-export-free_huge_page-to-vmcoreinfo-fix
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

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@suse.cz>
---
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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