[PATCH] kexec-export-free_huge_page-to-vmcoreinfo-fix

[Michal Hocko]

free_huge_page is not defined for !CONFIG_HUGETLBFS. Fix the following
compilation error:

kernel/kexec.c: In function âcrash_save_vmcoreinfo_initâ:
kernel/kexec.c:1628:20: error: âfree_huge_pageâ 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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