diff mbox series

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

Message ID 20220422195516.10769-5-jvgediya@linux.ibm.com (mailing list archive)
State New
Headers show
Series mm: demotion: Introduce new node state N_DEMOTION_TARGETS | expand

Commit Message

Jagdish Gediya April 22, 2022, 7:55 p.m. UTC
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(+)

Comments

Wei Xu April 22, 2022, 8:34 p.m. UTC | #1
On Fri, Apr 22, 2022 at 12:55 PM Jagdish Gediya <jvgediya@linux.ibm.com> wrote:
>
> 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>
> ---

Acked-by: Wei Xu <weixugc@google.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
>
diff mbox series

Patch

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: