[POWERPC] Size swapper_pg_dir correctly
David Gibson pointed out that swapper_pg_dir actually need to be
PGD_TABLE_SIZE bytes long not PAGE_SIZE. This actually saves 64k in
the bss for a kernel ppc64_defconfig built with CONFIG_PPC_64K_PAGES.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index a408053..0ae5d57 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -320,5 +320,9 @@
DEFINE(VMALLOC_START_ESID, GET_ESID(VMALLOC_START));
DEFINE(VMALLOC_START_VSID, KERNEL_VSID(VMALLOC_START));
#endif
+
+#ifdef CONFIG_PPC64
+ DEFINE(PGD_TABLE_SIZE, PGD_TABLE_SIZE);
+#endif
return 0;
}