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    SubjectRe: [patch] x86: make UV support optional
    Jack Steiner wrote:
    > On Tue, Jan 06, 2009 at 07:03:48AM +0100, Nick Piggin wrote:
    >> UV is fairly rare.... and much of the support is already there to cope with
    >> 32-bit builds. So this makes sense I think.
    > Looks ok to me. One suggestion though. There is a MAXSMP config
    > option. I would suggest enabling UV if MAXSMP is enabled. This
    > will help ensure that UV is tested more frequently & may minimize
    > regressions.
    > --- jack

    Nick - would you add something like this to your patch? Thanks! Mike
    Subject: x86: enable UV when MAXSMP is configured.

    We want UV code to be tested even for non-UV architectures. Enabling
    MAXSMP specifies "maximizing the system capabitlity" and UV is one of
    these methods. Also helps distros select the correct config options
    for their default configurations.

    Signed-off-by: Mike Travis <>
    arch/x86/Kconfig | 1 +
    1 file changed, 1 insertion(+)

    --- linux-2.6-for-ingo.orig/arch/x86/Kconfig
    +++ linux-2.6-for-ingo/arch/x86/Kconfig
    @@ -616,6 +616,7 @@ config MAXSMP
    bool "Configure Maximum number of SMP Processors and NUMA Nodes"
    depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
    + select X86_UV
    default n
    Configure maximum number of CPUS and NUMA Nodes for this architecture.

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