2008-10-31 17:52:22

by Gary Hade

Subject: [PATCH] [RESEND] x86: add memory hotremove config option

I am resending this patch (originally posted by Badari Pulavarty)
since the "mm: cleanup to make remove_memory() arch-neutral" patch
on which it depends is now in Linus' 2.6.git tree (commit
71088785c6bc68fddb450063d57b1bd1c78e0ea1) and 2.6.28-rc2.

Thanks,
Gary

---
Add memory hotremove config option to x86

Memory hotremove functionality can currently be configured into
the ia64, powerpc, and s390 kernels. This patch makes it possible
to configure the memory hotremove functionality into the x86
kernel as well.

Signed-off-by: Badari Pulavarty <[email protected]>
Signed-off-by: Gary Hade <[email protected]>

---
arch/x86/Kconfig | 4 ++++
1 file changed, 4 insertions(+)

Index: linux-2.6.28-rc2/arch/x86/Kconfig
===================================================================
--- linux-2.6.28-rc2.orig/arch/x86/Kconfig 2008-10-31 10:34:14.000000000 -0700
+++ linux-2.6.28-rc2/arch/x86/Kconfig 2008-10-31 10:34:27.000000000 -0700
@@ -1486,6 +1486,10 @@
def_bool y
depends on X86_64 || (X86_32 && HIGHMEM)

+config ARCH_ENABLE_MEMORY_HOTREMOVE
+ def_bool y
+ depends on MEMORY_HOTPLUG
+
config HAVE_ARCH_EARLY_PFN_TO_NID
def_bool X86_64
depends on NUMA

2008-11-03 09:03:53

by Ingo Molnar

Subject: Re: [PATCH] [RESEND] x86: add memory hotremove config option

* Gary Hade <[email protected]> wrote:

> I am resending this patch (originally posted by Badari Pulavarty)
> since the "mm: cleanup to make remove_memory() arch-neutral" patch
> on which it depends is now in Linus' 2.6.git tree (commit
> 71088785c6bc68fddb450063d57b1bd1c78e0ea1) and 2.6.28-rc2.
>
> Thanks,
> Gary
>
> ---
> Add memory hotremove config option to x86
>
> Memory hotremove functionality can currently be configured into
> the ia64, powerpc, and s390 kernels. This patch makes it possible
> to configure the memory hotremove functionality into the x86
> kernel as well.
>
> Signed-off-by: Badari Pulavarty <[email protected]>
> Signed-off-by: Gary Hade <[email protected]>

applied to tip/x86/mm, thanks!

Ingo