diff options
Diffstat (limited to 'arch/x86/mm/discontig_32.c')
| -rw-r--r-- | arch/x86/mm/discontig_32.c | 34 |
1 files changed, 6 insertions, 28 deletions
diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c index 914ccf98368..026201f143a 100644 --- a/arch/x86/mm/discontig_32.c +++ b/arch/x86/mm/discontig_32.c @@ -164,16 +164,13 @@ static void __init allocate_pgdat(int nid) } } -#ifdef CONFIG_DISCONTIGMEM /* - * In the discontig memory model, a portion of the kernel virtual area (KVA) - * is reserved and portions of nodes are mapped using it. This is to allow - * node-local memory to be allocated for structures that would normally require - * ZONE_NORMAL. The memory is allocated with alloc_remap() and callers - * should be prepared to allocate from the bootmem allocator instead. This KVA - * mechanism is incompatible with SPARSEMEM as it makes assumptions about the - * layout of memory that are broken if alloc_remap() succeeds for some of the - * map and fails for others + * In the DISCONTIGMEM and SPARSEMEM memory model, a portion of the kernel + * virtual address space (KVA) is reserved and portions of nodes are mapped + * using it. This is to allow node-local memory to be allocated for + * structures that would normally require ZONE_NORMAL. The memory is + * allocated with alloc_remap() and callers should be prepared to allocate + * from the bootmem allocator instead. */ static unsigned long node_remap_start_pfn[MAX_NUMNODES]; static void *node_remap_end_vaddr[MAX_NUMNODES]; @@ -290,25 +287,6 @@ static void init_remap_allocator(int nid) (ulong) pfn_to_kaddr(highstart_pfn + node_remap_offset[nid] + node_remap_size[nid])); } -#else -void *alloc_remap(int nid, unsigned long size) -{ - return NULL; -} - -static unsigned long calculate_numa_remap_pages(void) -{ - return 0; -} - -static void init_remap_allocator(int nid) -{ -} - -void __init remap_numa_kva(void) -{ -} -#endif /* CONFIG_DISCONTIGMEM */ extern void setup_bootmem_allocator(void); unsigned long __init setup_memory(void) |