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Subject[PATCH 14/19] sparc: expose number of page table levels
Date
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@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
---
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


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