Messages in this thread Patch in this message | | | Date | Fri, 4 Nov 2005 15:20:24 -0800 | From | Mike Kravetz <> | Subject | [PATCH 3/4] Memory Add Fixes for ppc64 |
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This is a temporary kludge that supports adding all new memory to node 0. I will provide a more complete solution similar to that used for dynamically added CPUs in a few days.
Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>
diff -Naupr linux-2.6.14-git7/include/asm-ppc64/mmzone.h linux-2.6.14-git7.work/include/asm-ppc64/mmzone.h --- linux-2.6.14-git7/include/asm-ppc64/mmzone.h 2005-11-04 21:21:09.000000000 +0000 +++ linux-2.6.14-git7.work/include/asm-ppc64/mmzone.h 2005-11-04 22:10:44.000000000 +0000 @@ -33,6 +33,9 @@ extern int numa_cpu_lookup_table[]; extern char *numa_memory_lookup_table; extern cpumask_t numa_cpumask_lookup_table[]; extern int nr_cpus_in_node[]; +#ifdef CONFIG_MEMORY_HOTPLUG +extern unsigned long max_pfn; +#endif /* 16MB regions */ #define MEMORY_INCREMENT_SHIFT 24 @@ -45,6 +48,11 @@ static inline int pa_to_nid(unsigned lon { int nid; +#ifdef CONFIG_MEMORY_HOTPLUG + /* kludge hot added sections default to node 0 */ + if (pa >= (max_pfn << PAGE_SHIFT)) + return 0; +#endif nid = numa_memory_lookup_table[pa >> MEMORY_INCREMENT_SHIFT]; #ifdef DEBUG_NUMA - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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