linux-kernel - Re: [PATCH v4 4/4] memblock tests: add generic NUMA tests for memblock_alloc_try

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Date:   Thu, 8 Sep 2022 14:26:54 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Rebecca Mckeever <remckee0@...il.com>,
        Mike Rapoport <rppt@...nel.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 4/4] memblock tests: add generic NUMA tests for
 memblock_alloc_try_nid*

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@...il.com>
> ---
>   tools/testing/memblock/tests/alloc_nid_api.c | 197 +++++++++++++++++++
>   1 file changed, 197 insertions(+)
> 

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Thanks,

David / dhildenb