[PATCH] ppc64 need HPAGE_SHIFT when huge pages disabled
Andy Whitcroft
apw at shadowen.org
Fri Nov 18 04:00:31 EST 2005
With the new powerpc architecture we don't seem to be able to disable
huge pages anymore.
mm/built-in.o(.toc1+0xae0): undefined reference to `HPAGE_SHIFT'
make: *** [.tmp_vmlinux1] Error 1
We seem to need to define HPAGE_SHIFT to something when HUGETLB_PAGE isn't
defined. This patch defines it to 0 when we have no support.
How does this look? Against 2.6.15-rc1-mm1.
Signed-off-by: Andy Whitcroft <apw at shadowen.org>
---
diff -upN reference/include/asm-powerpc/page_64.h current/include/asm-powerpc/page_64.h
--- reference/include/asm-powerpc/page_64.h
+++ current/include/asm-powerpc/page_64.h
@@ -86,7 +86,11 @@ static inline void copy_page(void *to, v
extern u64 ppc64_pft_size;
/* Large pages size */
+#ifdef CONFIG_HUGETLB_PAGE
extern unsigned int HPAGE_SHIFT;
+#else
+#define HPAGE_SHIFT 0
+#endif
#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
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