The patch titled
Subject: mm: make free_area_init_node aware of memory less nodes
has been added to the -mm tree. Its filename is
mm-make-free_area_init_node-aware-of-memory-less-nodes.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-make-free_area_init_node-aware-of-memory-less-nodes.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-make-free_area_init_node-aware-of-memory-less-nodes.patch
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------------------------------------------------------
From: Michal Hocko <mhocko@xxxxxxxx>
Subject: mm: make free_area_init_node aware of memory less nodes
free_area_init_node is also called from memory less node initialization
path (free_area_init_memoryless_node). It doesn't really make much sense
to display the physical memory range for those nodes: Initmem setup node
XX [mem 0x0000000000000000-0x0000000000000000]
Instead be explicit that the node is memoryless: Initmem setup node XX as
memoryless
Link: https://lkml.kernel.org/r/20220127085305.20890-6-mhocko@xxxxxxxxxx
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Acked-by: Rafael Aquini <raquini@xxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>
Cc: Alexey Makhalov <amakhalov@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Dennis Zhou <dennis@xxxxxxxxxx>
Cc: Eric Dumazet <eric.dumazet@xxxxxxxxx>
Cc: Nico Pache <npache@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
--- a/mm/page_alloc.c~mm-make-free_area_init_node-aware-of-memory-less-nodes
+++ a/mm/page_alloc.c
@@ -7727,9 +7727,14 @@ static void __init free_area_init_node(i
pgdat->node_start_pfn = start_pfn;
pgdat->per_cpu_nodestats = NULL;
- pr_info("Initmem setup node %d [mem %#018Lx-%#018Lx]\n", nid,
- (u64)start_pfn << PAGE_SHIFT,
- end_pfn ? ((u64)end_pfn << PAGE_SHIFT) - 1 : 0);
+ if (start_pfn != end_pfn) {
+ pr_info("Initmem setup node %d [mem %#018Lx-%#018Lx]\n", nid,
+ (u64)start_pfn << PAGE_SHIFT,
+ end_pfn ? ((u64)end_pfn << PAGE_SHIFT) - 1 : 0);
+ } else {
+ pr_info("Initmem setup node %d as memoryless\n", nid);
+ }
+
calculate_node_totalpages(pgdat, start_pfn, end_pfn);
alloc_node_mem_map(pgdat);
_
Patches currently in -mm which might be from mhocko@xxxxxxxx are
mm-memory_hotplug-make-arch_alloc_nodedata-independent-on-config_memory_hotplug.patch
mm-handle-uninitialized-numa-nodes-gracefully.patch
mm-memory_hotplug-drop-arch_free_nodedata.patch
mm-memory_hotplug-reorganize-new-pgdat-initialization.patch
mm-make-free_area_init_node-aware-of-memory-less-nodes.patch
