[PATCH v3 4/7] device-dax/kmem: Set node state as N_DEMOTION_TARGETS

Jagdish Gediya
2022-04-22T21:36:59Z

Set dax-device node as N_DEMOTION_TARGETS so that it
can be used as demotion target.

In future, support should be added to distinguish the
dax-devices which are not preferred as demotion target
e.g. HBM, for such devices, node shouldn't be set to
N_DEMOTION_TARGETS.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Jagdish Gediya <jvgediya@linux.ibm.com>
---
drivers/dax/kmem.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c
index a37622060fff..f42ab9d04bdf 100644
--- a/drivers/dax/kmem.c
+++ b/drivers/dax/kmem.c
@@ -147,6 +147,8 @@ static int dev_dax_kmem_probe(struct dev_dax *dev_dax)

dev_set_drvdata(dev, data);

+ node_set_state(numa_node, N_DEMOTION_TARGETS);
+
return 0;

err_request_mem:
--
2.35.1