[PATCH] ppc64: four level pagetables fix
With CONFIG_HUGETLB_PAGE=n:
In file included from kernel/sysctl.c:37:
include/linux/hugetlb.h:104:1: warning: "hugetlb_free_pgd_range" redefined
In file included from include/linux/mm.h:36,
from kernel/sysctl.c:23:
include/asm/pgtable.h:492:1: warning: this is the location of the previous definition
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/include/asm-ppc64/pgtable.h b/include/asm-ppc64/pgtable.h
index 5ea952a..c83679c 100644
--- a/include/asm-ppc64/pgtable.h
+++ b/include/asm-ppc64/pgtable.h
@@ -489,8 +489,10 @@
extern void paging_init(void);
+#ifdef CONFIG_HUGETLB_PAGE
#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \
free_pgd_range(tlb, addr, end, floor, ceiling)
+#endif
/*
* This gets called at the end of handling a page fault, when