The patch titled
x86_64: fake numa cmdline flag fix
has been added to the -mm tree. Its filename is
x86_64-map-fake-nodes-to-real-nodes-fix.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: x86_64: fake numa cmdline flag fix
From: David Rientjes <rientjes@xxxxxxxxxx>
Make sure we only reference 'cmdline' on CONFIG_NUMA_EMU.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86_64/mm/numa.c | 16 +++++++++++-----
1 files changed, 11 insertions(+), 5 deletions(-)
diff -puN arch/x86_64/mm/numa.c~x86_64-map-fake-nodes-to-real-nodes-fix arch/x86_64/mm/numa.c
--- a/arch/x86_64/mm/numa.c~x86_64-map-fake-nodes-to-real-nodes-fix
+++ a/arch/x86_64/mm/numa.c
@@ -519,22 +519,28 @@ void __init numa_initmem_init(unsigned l
{
unsigned long start_addr = start_pfn << PAGE_SHIFT;
unsigned long end_addr = end_pfn << PAGE_SHIFT;
+ int numa_fake = 0;
int i;
+#ifdef CONFIG_NUMA_EMU
+ /* Determine if we have a numa=fake command line */
+ if (cmdline != 0)
+ numa_fake = 1;
+#endif
+
#ifdef CONFIG_ACPI_NUMA
- if (!numa_off && !cmdline && !acpi_scan_nodes(start_addr, end_addr))
+ if (!numa_off && !numa_fake && !acpi_scan_nodes(start_addr, end_addr))
return;
#endif
#ifdef CONFIG_K8_NUMA
- if (!numa_off && !k8_scan_nodes(start_addr, end_addr, cmdline != 0))
- if (cmdline == 0)
+ if (!numa_off && !k8_scan_nodes(start_addr, end_addr, numa_fake))
+ if (!numa_fake)
return;
#endif
#ifdef CONFIG_NUMA_EMU
- if (cmdline)
- {
+ if (numa_fake) {
numa_emu = !numa_emulation(start_pfn, end_pfn);
if (numa_emu)
return;
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
x86_64-remove-unusued-flags-variable.patch
x86_64-configurable-fake-numa-node-sizes.patch
x86_64-split-remaining-fake-nodes-equally.patch
x86_64-fixed-size-remaining-fake-nodes.patch
x86_64-map-fake-nodes-to-real-nodes.patch
x86_64-map-fake-nodes-to-real-nodes-fix.patch
x86_64-disable-alien-cache-for-fake-numa.patch
x86_64-export-physnode-mapping-to-userspace.patch
x86_64-fake-numa-for-cpusets-document.patch
smaps-extract-pmd-walker-from-smaps-code.patch
smaps-add-pages-referenced-count-to-smaps.patch
smaps-add-clear_refs-file-to-clear-reference.patch
smaps-add-clear_refs-file-to-clear-reference-fix.patch
smaps-add-clear_refs-file-to-clear-reference-fix-fix.patch
smaps-add-clear_refs-file-to-clear-reference-docs.patch
-
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