* Mel Gorman <[EMAIL PROTECTED]> wrote:
> > I think this patch become easy to the porting of fakenuma.
>
> It would be great if that was available, particularly if it could fake
> memoryless nodes as that is a place where we've found a few
> difficult-to-reproduce bugs.
yeah. Your previous patch (see below) had build problems - are those
resolved meanwhile?
Ingo
----------->
Subject: x86: allow any x86 sub-architecture type to set CONFIG_NUMA
From: Mel Gorman <[EMAIL PROTECTED]>
While there are a limited number of x86 sub-architecture types that can
really support NUMA, there is nothing stopping other machines booting that
type of kernel. The fact that X86_GENERICARCH can set NUMA currently is an
indicator of that. This restriction only limits potential testing coverage.
This patch allows any sub-architecture to set CONFIG_NUMA if they wish.
Signed-off-by: Mel Gorman <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
---
arch/x86/Kconfig | 2 +-
include/asm-x86/acpi.h | 1 +
include/linux/acpi.h | 1 -
3 files changed, 2 insertions(+), 2 deletions(-)
Index: linux-x86.q/arch/x86/Kconfig
===================================================================
--- linux-x86.q.orig/arch/x86/Kconfig
+++ linux-x86.q/arch/x86/Kconfig
@@ -816,7 +816,7 @@ config X86_PAE
config NUMA
bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
depends on SMP
- depends on X86_64 || (X86_32 && (X86_NUMAQ || (X86_SUMMIT ||
X86_GENERICARCH) && ACPI) && EXPERIMENTAL)
+ depends on X86_64 || (X86_32 && ACPI && EXPERIMENTAL)
default n if X86_PC
default y if (X86_NUMAQ || X86_SUMMIT)
help
Index: linux-x86.q/include/asm-x86/acpi.h
===================================================================
--- linux-x86.q.orig/include/asm-x86/acpi.h
+++ linux-x86.q/include/asm-x86/acpi.h
@@ -79,6 +79,7 @@ int __acpi_release_global_lock(unsigned
:"0"(n_hi), "1"(n_lo))
#ifdef CONFIG_ACPI
+#define NR_NODE_MEMBLKS MAX_NUMNODES
extern int acpi_lapic;
extern int acpi_ioapic;
extern int acpi_noirq;
Index: linux-x86.q/include/linux/acpi.h
===================================================================
--- linux-x86.q.orig/include/linux/acpi.h
+++ linux-x86.q/include/linux/acpi.h
@@ -95,7 +95,6 @@ void acpi_table_print_madt_entry (struct
/* the following four functions are architecture-dependent */
#ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
-#define NR_NODE_MEMBLKS MAX_NUMNODES
#define acpi_numa_slit_init(slit) do {} while (0)
#define acpi_numa_processor_affinity_init(pa) do {} while (0)
#define acpi_numa_memory_affinity_init(ma) do {} while (0)
--
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