mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA
After removal of DISCINTIGMEM the NEED_MULTIPLE_NODES and NUMA
configuration options are equivalent.
Drop CONFIG_NEED_MULTIPLE_NODES and use CONFIG_NUMA instead.
Done with
$ sed -i 's/CONFIG_NEED_MULTIPLE_NODES/CONFIG_NUMA/' \
$(git grep -wl CONFIG_NEED_MULTIPLE_NODES)
$ sed -i 's/NEED_MULTIPLE_NODES/NUMA/' \
$(git grep -wl NEED_MULTIPLE_NODES)
with manual tweaks afterwards.
[rppt@linux.ibm.com: fix arm boot crash]
Link: https://lkml.kernel.org/r/YMj9vHhHOiCVN4BF@linux.ibm.com
Link: https://lkml.kernel.org/r/20210608091316.3622-9-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/Kconfig b/mm/Kconfig
index 218b96c..bffe4bd 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -60,15 +60,6 @@
depends on !SPARSEMEM
#
-# Both the NUMA code and DISCONTIGMEM use arrays of pg_data_t's
-# to represent different areas of memory. This variable allows
-# those dependencies to exist individually.
-#
-config NEED_MULTIPLE_NODES
- def_bool y
- depends on NUMA
-
-#
# SPARSEMEM_EXTREME (which is the default) does some bootmem
# allocations when sparse_init() is called. If this cannot
# be done on your architecture, select this option. However,
diff --git a/mm/memblock.c b/mm/memblock.c
index afaefa8..123feef 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -92,7 +92,7 @@
* system initialization completes.
*/
-#ifndef CONFIG_NEED_MULTIPLE_NODES
+#ifndef CONFIG_NUMA
struct pglist_data __refdata contig_page_data;
EXPORT_SYMBOL(contig_page_data);
#endif
@@ -607,7 +607,7 @@ static int __init_memblock memblock_add_range(struct memblock_type *type,
* area, insert that portion.
*/
if (rbase > base) {
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
WARN_ON(nid != memblock_get_region_node(rgn));
#endif
WARN_ON(flags != rgn->flags);
@@ -1205,7 +1205,7 @@ void __init_memblock __next_mem_pfn_range(int *idx, int nid,
int __init_memblock memblock_set_node(phys_addr_t base, phys_addr_t size,
struct memblock_type *type, int nid)
{
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
int start_rgn, end_rgn;
int i, ret;
@@ -1849,7 +1849,7 @@ static void __init_memblock memblock_dump(struct memblock_type *type)
size = rgn->size;
end = base + size - 1;
flags = rgn->flags;
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
if (memblock_get_region_node(rgn) != MAX_NUMNODES)
snprintf(nid_buf, sizeof(nid_buf), " on node %d",
memblock_get_region_node(rgn));
diff --git a/mm/memory.c b/mm/memory.c
index 3dd6b2e..48c4576 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -90,8 +90,7 @@
#warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_cpupid.
#endif
-#ifndef CONFIG_NEED_MULTIPLE_NODES
-/* use the per-pgdat data instead for discontigmem - mbligh */
+#ifndef CONFIG_NUMA
unsigned long max_mapnr;
EXPORT_SYMBOL(max_mapnr);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8926f3f..c4069f9 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1634,7 +1634,7 @@ void __free_pages_core(struct page *page, unsigned int order)
__free_pages_ok(page, order, FPI_TO_TAIL | FPI_SKIP_KASAN_POISON);
}
-#ifdef CONFIG_NEED_MULTIPLE_NODES
+#ifdef CONFIG_NUMA
/*
* During memory init memblocks map pfns to nids. The search is expensive and
@@ -1684,7 +1684,7 @@ int __meminit early_pfn_to_nid(unsigned long pfn)
return nid;
}
-#endif /* CONFIG_NEED_MULTIPLE_NODES */
+#endif /* CONFIG_NUMA */
void __init memblock_free_pages(struct page *page, unsigned long pfn,
unsigned int order)
@@ -7438,7 +7438,7 @@ static void __ref alloc_node_mem_map(struct pglist_data *pgdat)
pr_debug("%s: node %d, pgdat %08lx, node_mem_map %08lx\n",
__func__, pgdat->node_id, (unsigned long)pgdat,
(unsigned long)pgdat->node_mem_map);
-#ifndef CONFIG_NEED_MULTIPLE_NODES
+#ifndef CONFIG_NUMA
/*
* With no DISCONTIG, the global mem_map is just set as node 0's
*/
diff --git a/mm/sparse.c b/mm/sparse.c
index 55c18aff..7272f7a 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -346,7 +346,7 @@ size_t mem_section_usage_size(void)
static inline phys_addr_t pgdat_to_phys(struct pglist_data *pgdat)
{
-#ifndef CONFIG_NEED_MULTIPLE_NODES
+#ifndef CONFIG_NUMA
return __pa_symbol(pgdat);
#else
return __pa(pgdat);