[to-be-updated] mm-numa_memblks-introduce-numa_add_reserved_memblk.patch removed from -mm tree

[to-be-updated] mm-numa_memblks-introduce-numa_add_reserved_memblk.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: numa_memblks: introduce numa_add_reserved_memblk()
has been removed from the -mm tree.  Its filename was
     mm-numa_memblks-introduce-numa_add_reserved_memblk.patch

This patch was dropped because an updated version will be issued

------------------------------------------------------
From: Yuquan Wang <wangyuquan1236@phytium.com.cn>
Subject: mm: numa_memblks: introduce numa_add_reserved_memblk()
Date: Wed, 9 Apr 2025 12:01:21 +0800

acpi_parse_cfmws() currently adds empty CFMWS ranges to numa_meminfo with
the expectation that numa_cleanup_meminfo moves them to
numa_reserved_meminfo.  There is no need for that indirection when it is
known in advance that these unpopulated ranges are meant for
numa_reserved_meminfo in support of future hotplug / CXL provisioning.

Introduce and use numa_add_reserved_memblk() to add the empty CFMWS
ranges directly.

Link: https://lkml.kernel.org/r/20250409040121.3212489-1-wangyuquan1236@phytium.com.cn
Signed-off-by: Yuquan Wang <wangyuquan1236@phytium.com.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Bruno Faccini <bfaccini@nvidia.com>
Cc: Chen Baozi <chenbaozi@phytium.com.cn>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Joanthan Cameron <Jonathan.Cameron@huawei.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Robert Richter <rrichter@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/acpi/numa/srat.c     |    2 +-
 include/linux/numa_memblks.h |    1 +
 mm/numa_memblks.c            |   22 ++++++++++++++++++++++
 3 files changed, 24 insertions(+), 1 deletion(-)

--- a/drivers/acpi/numa/srat.c~mm-numa_memblks-introduce-numa_add_reserved_memblk
+++ a/drivers/acpi/numa/srat.c
@@ -464,7 +464,7 @@ static int __init acpi_parse_cfmws(union
 		return -EINVAL;
 	}
 
-	if (numa_add_memblk(node, start, end) < 0) {
+	if (numa_add_reserved_memblk(node, start, end) < 0) {
 		/* CXL driver must handle the NUMA_NO_NODE case */
 		pr_warn("ACPI NUMA: Failed to add memblk for CFMWS node %d [mem %#llx-%#llx]\n",
 			node, start, end);
--- a/include/linux/numa_memblks.h~mm-numa_memblks-introduce-numa_add_reserved_memblk
+++ a/include/linux/numa_memblks.h
@@ -22,6 +22,7 @@ struct numa_meminfo {
 };
 
 int __init numa_add_memblk(int nodeid, u64 start, u64 end);
+int __init numa_add_reserved_memblk(int nid, u64 start, u64 end);
 void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi);
 
 int __init numa_cleanup_meminfo(struct numa_meminfo *mi);
--- a/mm/numa_memblks.c~mm-numa_memblks-introduce-numa_add_reserved_memblk
+++ a/mm/numa_memblks.c
@@ -201,6 +201,28 @@ int __init numa_add_memblk(int nid, u64
 }
 
 /**
+ * numa_add_reserved_memblk - Add one numa_memblk to numa_reserved_meminfo
+ * @nid: NUMA node ID of the new memblk
+ * @start: Start address of the new memblk
+ * @end: End address of the new memblk
+ *
+ * Add a new memblk to the numa_reserved_meminfo.
+ *
+ * Usage Case: numa_cleanup_meminfo() reconciles all numa_memblk instances
+ * against memblock_type information and moves any that intersect reserved
+ * ranges to numa_reserved_meminfo. However, when that information is known
+ * ahead of time, we use numa_add_reserved_memblk() to add the numa_memblk
+ * to numa_reserved_meminfo directly.
+ *
+ * RETURNS:
+ * 0 on success, -errno on failure.
+ */
+int __init numa_add_reserved_memblk(int nid, u64 start, u64 end)
+{
+	return numa_add_memblk_to(nid, start, end, &numa_reserved_meminfo);
+}
+
+/**
  * numa_cleanup_meminfo - Cleanup a numa_meminfo
  * @mi: numa_meminfo to clean up
  *
_

Patches currently in -mm which might be from wangyuquan1236@phytium.com.cn are