[PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options
In order to use the alternative sparsemem implmentation for NUMA kernels,
we need to reorganize the config options. This patch effectively abstracts
out the CONFIG_DISCONTIGMEM options to CONFIG_NUMA in most cases. Thus,
the discontigmem implementation may be employed as always, but the
sparsemem implementation may be used alternatively.
Signed-off-by: Matt Tolentino <matthew.e.tolentino@intel.com>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index dbe53b4..72e4b36 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -318,7 +318,7 @@
flush_tlb_all();
}
-#ifndef CONFIG_DISCONTIGMEM
+#ifndef CONFIG_NUMA
void __init paging_init(void)
{
{
@@ -427,13 +427,16 @@
reservedpages = 0;
/* this will put all low memory onto the freelists */
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
totalram_pages += numa_free_all_bootmem();
tmp = 0;
/* should count reserved pages here for all nodes */
#else
+
+#ifdef CONFIG_FLATMEM
max_mapnr = end_pfn;
if (!mem_map) BUG();
+#endif
totalram_pages += free_all_bootmem();
@@ -515,7 +518,7 @@
void __init reserve_bootmem_generic(unsigned long phys, unsigned len)
{
/* Should check here against the e820 map to avoid double free */
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
int nid = phys_to_nid(phys);
reserve_bootmem_node(NODE_DATA(nid), phys, len);
#else