[PATCHv2 3/4] tree: add attribute numa_nodes for NVMe path object

[Hannes Reinecke]

On 4/17/25 15:59, Nilay Shroff wrote:
> Add a new attribute named "numa_nodes" under the NVMe path object. This
> attribute is used by the iopolicy "numa". The numa_nodes value is stored
> for each NVMe path and represents the NUMA node(s) associated with it.
> When the iopolicy is set to "numa", I/O traffic originating from a given
> NUMA node will be forwarded through the corresponding NVMe path.
> 
> The numa_nodes attribute is useful for observing which NVMe path the
> kernel would choose for I/O forwarding based on NUMA affinity. To support
> this, export the attribute in libnvme.map so it can be accessed via
> nvme-cli.
> 
> Signed-off-by: Nilay Shroff <nilay at linux.ibm.com>
> ---
>   src/libnvme.map    |  1 +
>   src/nvme/private.h |  1 +
>   src/nvme/tree.c    | 10 ++++++++++
>   src/nvme/tree.h    |  8 ++++++++
>   4 files changed, 20 insertions(+)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare at suse.de                                +49 911 74053 688
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