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[198.54.128.70]) by smtp.gmail.com with ESMTPSA id n44-20020a02716c000000b0034358669334sm1780815jaf.87.2022.08.13.22.54.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 13 Aug 2022 22:54:05 -0700 (PDT) From: Rebecca Mckeever To: Mike Rapoport , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: David Hildenbrand , Rebecca Mckeever Subject: [PATCH 0/8] memblock tests: update and extend memblock simulator Date: Sun, 14 Aug 2022 00:53:52 -0500 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These patches update existing tests in memblock simulator, add additional tests for memblock functions that are already being tested, and add test coverage for additional memblock functions. Updated tests for: - memblock_alloc() - memblock_alloc_try_nid() - memblock_alloc_from() The updates to memblock_alloc() tests include the addition of an assert that checks whether the entire chunk of allocated memory is cleared. For memblock_alloc_try_nid() and memblock_alloc_from(), the assert that checks whether the allocated memory is cleared now checks the entire chunk of allocated memory instead of just the first byte. To make this more robust, setup_memblock() and dummy_physical_memory_init() fill the entire MEM_SIZE simulated physical memory with nonzero values by calling fill_memblock(). setup_memblock() is called at the beginning of most tests. Tests that don't call setup_memblock() call fill_memblock() directly. Additional tests for: - memblock_add() - memblock_reserve() - memblock_remove() - memblock_free() - memblock_alloc() Introducing test coverage for: - memblock_alloc_raw() - memblock_alloc_try_nid_raw() - memblock_set_bottom_up() - memblock_bottom_up() - memblock_trim_memory() The tests for the memblock_alloc_*raw() functions test both top-down and bottom-up allocation directions. To add coverage for memblock_alloc_raw(), the alloc_api was updated so that it runs through all the existing tests twice: once for memblock_alloc() and once for memblock_alloc_raw(). When the tests run memblock_alloc_raw(), they test that the entire memory region is nonzero instead of testing that it is zero. Similarly, the alloc_nid_api was updated to run through its tests twice, once for memblock_alloc_try_nid() and once for memblock_alloc_try_nid_raw(). When the tests run memblock_alloc_try_nid_raw(), they test that the entire memory region is nonzero instead of testing that it is zero. The patchset also adds labels to verbose output for generic memblock_alloc*() tests that indicate which allocation direction is set. The function names of those tests do not include this information. Rebecca Mckeever (8): memblock tests: update tests to check if memblock_alloc zeroed memory memblock tests: update zeroed memory check for memblock_alloc_* tests memblock tests: add labels to verbose output for generic alloc tests memblock tests: add additional tests for basic api and memblock_alloc memblock tests: update alloc_api to test memblock_alloc_raw memblock tests: update alloc_nid_api to test memblock_alloc_try_nid_raw memblock tests: add tests for memblock_*bottom_up functions memblock tests: add tests for memblock_trim_memory tools/testing/memblock/tests/alloc_api.c | 184 ++++- .../memblock/tests/alloc_helpers_api.c | 20 +- tools/testing/memblock/tests/alloc_nid_api.c | 268 +++--- tools/testing/memblock/tests/basic_api.c | 773 +++++++++++++++++- tools/testing/memblock/tests/common.c | 7 + tools/testing/memblock/tests/common.h | 46 ++ 6 files changed, 1108 insertions(+), 190 deletions(-) -- 2.25.1