diff options
| -rw-r--r-- | arch/ppc64/Kconfig | 12 | ||||
| -rw-r--r-- | include/linux/mmzone.h | 6 | ||||
| -rw-r--r-- | mm/page_alloc.c | 2 |
3 files changed, 20 insertions, 0 deletions
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig index 011b5c0bf1d..85f8fcf44b6 100644 --- a/arch/ppc64/Kconfig +++ b/arch/ppc64/Kconfig @@ -211,6 +211,18 @@ config ARCH_FLATMEM_ENABLE source "mm/Kconfig" +# Some NUMA nodes have memory ranges that span +# other nodes. Even though a pfn is valid and +# between a node's start and end pfns, it may not +# reside on that node. +# +# This is a relatively temporary hack that should +# be able to go away when sparsemem is fully in +# place +config NODES_SPAN_OTHER_NODES + def_bool y + depends on NEED_MULTIPLE_NODES + config NUMA bool "NUMA support" depends on DISCONTIGMEM diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 19860d317ec..746b57e3d37 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -528,6 +528,12 @@ void sparse_init(void); #define sparse_init() do {} while (0) #endif /* CONFIG_SPARSEMEM */ +#ifdef CONFIG_NODES_SPAN_OTHER_NODES +#define early_pfn_in_nid(pfn, nid) (early_pfn_to_nid(pfn) == (nid)) +#else +#define early_pfn_in_nid(pfn, nid) (1) +#endif + #ifndef early_pfn_valid #define early_pfn_valid(pfn) (1) #endif diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5c1b8982a6d..1eb683f9b3a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1656,6 +1656,8 @@ void __init memmap_init_zone(unsigned long size, int nid, unsigned long zone, for (pfn = start_pfn; pfn < end_pfn; pfn++, page++) { if (!early_pfn_valid(pfn)) continue; + if (!early_pfn_in_nid(pfn, nid)) + continue; page = pfn_to_page(pfn); set_page_links(page, zone, nid, pfn); set_page_count(page, 0); |