These patches add additional tests for memblock_alloc_try_nid() and memblock_alloc_try_nid_raw() that use a simulated physical memory that is set up with multiple NUMA nodes. Additionally, most of these tests set nid != NUMA_NO_NODE. To set up a simulated physical memory with multiple NUMA nodes, patch 1 introduces setup_numa_memblock_generic() and setup_numa_memblock(). These functions use a previously allocated dummy physical memory. They can be used in place of setup_memblock() in tests that need to simulate a NUMA system. These tests are run twice, once for memblock_alloc_try_nid() and once for memblock_alloc_try_nid_raw(), so that both functions are tested with the same set of tests. When the tests run memblock_alloc_try_nid(), they test that the entire memory region is zero. When the tests run memblock_alloc_try_nid_raw(), they test that the entire memory region is nonzero. Note: This patchset depends on the following patch set: https://lore.kernel.org/linux-mm/cover.1660454730.git.remckee0@xxxxxxxxx/T/#m3a63677ae915fb47aea3f82780b72b54c08f246d Rebecca Mckeever (4): memblock tests: add simulation of physical memory with multiple NUMA nodes memblock tests: add top-down NUMA tests for memblock_alloc_try_nid* memblock tests: add bottom-up NUMA tests for memblock_alloc_try_nid* memblock tests: add generic NUMA tests for memblock_alloc_try_nid* .../testing/memblock/scripts/Makefile.include | 2 +- tools/testing/memblock/tests/alloc_nid_api.c | 1489 ++++++++++++++++- tools/testing/memblock/tests/alloc_nid_api.h | 16 + tools/testing/memblock/tests/common.c | 38 + tools/testing/memblock/tests/common.h | 27 +- 5 files changed, 1559 insertions(+), 13 deletions(-) -- 2.25.1
