We would want to use number of page table level to define mm_struct. Let's expose it as CONFIG_PGTABLE_LEVELS. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx> --- arch/sparc/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 96ac69c5eba0..cb06f5433e12 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -143,6 +143,10 @@ config GENERIC_ISA_DMA config ARCH_SUPPORTS_DEBUG_PAGEALLOC def_bool y if SPARC64 +config PGTABLE_LEVELS + default 4 if 64BIT + default 3 + source "init/Kconfig" source "kernel/Kconfig.freezer" -- 2.1.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>