Messages in this thread Patch in this message | | | Date | Fri, 2 Apr 2010 19:06:39 GMT | From | tip-bot for David Rientjes <> | Subject | [tip:x86/urgent] x86: Increase CONFIG_NODES_SHIFT max to 10 |
| |
Commit-ID: 51591e31dcb3716f03f962e26ec36a029aa46340 Gitweb: http://git.kernel.org/tip/51591e31dcb3716f03f962e26ec36a029aa46340 Author: David Rientjes <rientjes@google.com> AuthorDate: Thu, 25 Mar 2010 15:39:27 -0700 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Fri, 2 Apr 2010 19:09:31 +0200
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> --- arch/x86/Kconfig | 4 ++-- 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"
| |