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authorDavid Rientjes <rientjes@google.com>2010-03-25 15:39:27 -0700
committerIngo Molnar <mingo@elte.hu>2010-04-02 19:09:31 +0200
commit51591e31dcb3716f03f962e26ec36a029aa46340 (patch)
treef665dbdd69ad5a5e464d1434995d5939261c8d82
parent042be38e6106ed70b42d096ab4a1ed4187e510e6 (diff)
downloadop-kernel-dev-51591e31dcb3716f03f962e26ec36a029aa46340.zip
op-kernel-dev-51591e31dcb3716f03f962e26ec36a029aa46340.tar.gz
x86: Increase CONFIG_NODES_SHIFT max to 10
Some larger systems require more than 512 nodes, so increase the maximum CONFIG_NODES_SHIFT to 10 for a new max of 1024 nodes. This was tested with numa=fake=64M on systems with more than 64GB of RAM. A total of 1022 nodes were initialized. Successfully builds with no additional warnings on x86_64 allyesconfig. ( No effect on any existing config. Newly enabled CONFIG_MAXSMP=y will see the new default. ) Signed-off-by: David Rientjes <rientjes@google.com> LKML-Reference: <alpine.DEB.2.00.1003251538060.8589@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/Kconfig4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0eacb1f..9458685 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1216,8 +1216,8 @@ config NUMA_EMU
config NODES_SHIFT
int "Maximum NUMA Nodes (as a power of 2)" if !MAXSMP
- range 1 9
- default "9" if MAXSMP
+ range 1 10
+ default "10" if MAXSMP
default "6" if X86_64
default "4" if X86_NUMAQ
default "3"
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