On 8/30/21 5:46 PM, Bharata B Rao wrote:
> Print information message about the allocation fallback order
> for each NUMA node during boot.
>
> No functional changes here. This makes it easier to illustrate
> the problem in the node fallback list generation, which the
> next patch fixes.
>
> Signed-off-by: Bharata B Rao <bharata@xxxxxxx>
> ---
> mm/page_alloc.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index eeb3a9cb36bb..22f7ad6ec11c 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -6277,6 +6277,10 @@ static void build_zonelists(pg_data_t *pgdat)
>
> build_zonelists_in_node_order(pgdat, node_order, nr_nodes);
> build_thisnode_zonelists(pgdat);
> + pr_info("Fallback order for Node %d: ", local_node);
> + for (node = 0; node < nr_nodes; node++)
> + pr_cont("%d ", node_order[node]);
> + pr_cont("\n");
> }
>
> #ifdef CONFIG_HAVE_MEMORYLESS_NODES
>
Node allocation preference sequence for a given accessing node is an
important information on large systems. This information during boot
and (hotplug --> online sequence) will help the user.
Reviewed-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
