linux-kernel - [PATCH v2 0/5] memblock tests: add tests for memblock_alloc_exact_nid

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Date:   Sun,  2 Oct 2022 18:41:33 -0500
From:   Rebecca Mckeever <remckee0@...il.com>
To:     Mike Rapoport <rppt@...nel.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     David Hildenbrand <david@...hat.com>,
        Rebecca Mckeever <remckee0@...il.com>
Subject: [PATCH v2 0/5] memblock tests: add tests for memblock_alloc_exact_nid_raw

These patches add tests for memblock_alloc_exact_nid_raw(). There are two
sets of tests: range tests and NUMA tests. The range tests use a normal
(i.e., UMA) simulated physical memory and set the nid to NUMA_NO_NODE. The
NUMA tests use a simulated physical memory that is set up with multiple
NUMA nodes. Additionally, most of these tests set nid != NUMA_NO_NODE.

The range tests are very similar to the range tests for
memblock_alloc_try_nid_raw(). The NUMA tests have the same setup as the
corresponding test for memblock_alloc_try_nid_raw(), but several of the
memblock_alloc_exact_nid_raw() tests fail to allocate memory in setups
where the memblock_alloc_try_nid_raw() test would allocate memory. Also,
some memblock_alloc_exact_nid_raw() tests drop the lower limit of the
requested range in order to allocate within the requested node, but the
same setup in a memblock_alloc_try_nid_raw() test allocates within the
requested range.

---
Changelog

v1 -> v2
PATCH 0:
- Add missing memblock_alloc_exact_nid_raw to subject line
---

Rebecca Mckeever (5):
  memblock tests: add range tests for memblock_alloc_exact_nid_raw
  memblock tests: add top-down NUMA tests for
    memblock_alloc_exact_nid_raw
  memblock tests: add bottom-up NUMA tests for
    memblock_alloc_exact_nid_raw
  memblock tests: add generic NUMA tests for
    memblock_alloc_exact_nid_raw
  memblock tests: remove completed TODO item

 tools/testing/memblock/Makefile               |    2 +-
 tools/testing/memblock/TODO                   |    7 +-
 tools/testing/memblock/main.c                 |    2 +
 .../memblock/tests/alloc_exact_nid_api.c      | 2299 +++++++++++++++++
 .../memblock/tests/alloc_exact_nid_api.h      |   25 +
 5 files changed, 2328 insertions(+), 7 deletions(-)
 create mode 100644 tools/testing/memblock/tests/alloc_exact_nid_api.c
 create mode 100644 tools/testing/memblock/tests/alloc_exact_nid_api.h

-- 
2.25.1