Re: [PATCH v4 4/4] memblock tests: add generic NUMA tests for memblock_alloc_try_nid*

From: David Hildenbrand
Date: Thu Sep 08 2022 - 08:27:06 EST


On 04.09.22 06:21, Rebecca Mckeever wrote:
Add tests for memblock_alloc_try_nid() and memblock_alloc_try_nid_raw()
where the simulated physical memory is set up with multiple NUMA nodes.
Additionally, two of these tests set nid != NUMA_NO_NODE. All tests are
run for both top-down and bottom-up allocation directions.

The tested scenarios are:

Range unrestricted:
- region cannot be allocated:
+ none of the nodes have enough memory to allocate the region

Range restricted:
- region can be allocated in the specific node requested without dropping
min_addr:
+ the range fully overlaps with the node, and there are adjacent
reserved regions
- region cannot be allocated:
+ nid is set to NUMA_NO_NODE and the total range can fit the region,
but the range is split between two nodes and everything else is
reserved

Signed-off-by: Rebecca Mckeever <remckee0@xxxxxxxxx>
---
tools/testing/memblock/tests/alloc_nid_api.c | 197 +++++++++++++++++++
1 file changed, 197 insertions(+)


Acked-by: David Hildenbrand <david@xxxxxxxxxx>

--
Thanks,

David / dhildenb