[PATCH v3 0/5] memblock tests: add tests for memblock_alloc_exact_nid_raw

Rebecca Mckeever
2022-10-19T18:35:03Z

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 the NUMA tests set nid != NUMA_NO_NODE.

For the range tests, the TEST_F_EXACT flag is used to run the same set of
range tests used 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

v2 -> v3
Based on feedback from David Hildenbrand:
PATCH 1:
- alloc_nid_api.c, alloc_nid_api.h, common.h:
+ Add TEST_F_EXACT flag so that tests in alloc_nid_api.c can be run
with that flag to test memblock_alloc_exact_nid_raw()
- alloc_exact_nid_api.c:
+ Update to run range tests in alloc_nid_api.c with TEST_F_EXACT flag
instead of using a separate set of tests
- alloc_nid_api.c:
+ Rename tests and other functions by removing "_try" so that the
function names are general enough to refer to any of the
memblock_alloc_*nid*() functions of the memblock API
---

Rebecca Mckeever (5):
memblock tests: introduce 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 | 1113 +++++++++++++++++
.../memblock/tests/alloc_exact_nid_api.h | 25 +
tools/testing/memblock/tests/alloc_nid_api.c | 542 ++++----
tools/testing/memblock/tests/alloc_nid_api.h | 1 +
tools/testing/memblock/tests/common.h | 2 +
8 files changed, 1425 insertions(+), 269 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

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2.25.1