[PATCH v7 07/10] dax/kmem: resolve default online type at probe time

[Gregory Price <gourry@gourry.net>]

Resolve the default online type in kmem at probe time explicitly
instead of implicitly inheriting the system default by calling
add_memory_driver_managed().

No behavioral change at this point (still system default).

Signed-off-by: Gregory Price <gourry@gourry.net>
---
 drivers/dax/kmem.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c
index 592171ec10f49..38ed5c4e9c83d 100644
--- a/drivers/dax/kmem.c
+++ b/drivers/dax/kmem.c
@@ -73,6 +73,7 @@ static int dev_dax_kmem_probe(struct dev_dax *dev_dax)
 	mhp_t mhp_flags;
 	int numa_node;
 	int adist = MEMTIER_DEFAULT_DAX_ADISTANCE;
+	int online_type = mhp_get_default_online_type();
 
 	/*
 	 * Ensure good NUMA information for the persistent memory.
@@ -172,8 +173,9 @@ static int dev_dax_kmem_probe(struct dev_dax *dev_dax)
 		 * Ensure that future kexec'd kernels will not treat
 		 * this as RAM automatically.
 		 */
-		rc = add_memory_driver_managed(data->mgid, range.start,
-				range_len(&range), kmem_name, mhp_flags);
+		rc = __add_memory_driver_managed(data->mgid, range.start,
+				range_len(&range), kmem_name, mhp_flags,
+				online_type);
 
 		if (rc) {
 			dev_warn(dev, "mapping%d: %#llx-%#llx memory add failed\n",
-- 
2.53.0-Meta