[PATCH] ppc64: Convert NUMA to sparsemem (3)

Convert to sparsemem and remove all the discontigmem code in the
process. This has a few advantages:

- The old numa_memory_lookup_table can go away
- All the arch specific discontigmem magic can go away

We also remove the triple pass of memory properties and instead create a
list of per node extents that we iterate through. A final cleanup would
be to change our lmb code to store extents per node, then we can reuse
that information in the numa code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 8 deletions

diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index c9d32db9d76a..9d10c12e87fe 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -279,17 +279,12 @@ config ARCH_FLATMEM_ENABLE
        def_bool y
        depends on !NUMA
 
-config ARCH_DISCONTIGMEM_ENABLE
-        def_bool y
-        depends on SMP && PPC_PSERIES
-
-config ARCH_DISCONTIGMEM_DEFAULT
+config ARCH_SPARSEMEM_ENABLE
         def_bool y
-        depends on ARCH_DISCONTIGMEM_ENABLE
 
-config ARCH_SPARSEMEM_ENABLE
+config ARCH_SPARSEMEM_DEFAULT
         def_bool y
-        depends on ARCH_DISCONTIGMEM_ENABLE
+        depends on NUMA
 
 source "mm/Kconfig"