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Re: [GIT PULL] KUnit update for Linux 5.14-rc1

by pr-tracker-bot＠kernel.org

The pull request you sent on Fri, 2 Jul 2021 10:09:18 -0600: > git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-kunit-fixes-5.14-rc1 has been merged into torvalds/linux.git: https://git.kernel.org/torvalds/c/a48ad6e7a35dc3f3b521249204daf4c9427628e5 Thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/prtracker.html

4 years, 2 months

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[GIT PULL] Kselftest update for Linux 5.14-rc1

by Shuah Khan

Hi Linus, Please pull the following Kselftest update for Linux 5.14-rc1. This Kselftest update for Linux 5.14-rc1 consists of fixes to existing tests and framework: -- migrate sgx test to kselftest harness -- add new test cases to sgx test -- ftrace test fix event-no-pid on 1-core machine -- splice test adjust for handler fallback removal diff is attached. Apologies if this message appears to have double spacing. My email client is at fault - I am trying to figure out what changed. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit d07f6ca923ea0927a1024dfccafc5b53b61cfecc: Linux 5.13-rc2 (2021-05-16 15:27:44 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-next-5.14-rc1 for you to fetch changes up to 4896df9d53ae5521f3ce83751e828ad70bc65c80: selftests/sgx: remove checks for file execute permissions (2021-06-23 18:38:04 -0600) ---------------------------------------------------------------- linux-kselftest-next-5.14-rc1 This Kselftest update for Linux 5.14-rc1 consists of fixes to existing tests and framework: -- migrate sgx test to kselftest harness -- add new test cases to sgx test -- ftrace test fix event-no-pid on 1-core machine -- splice test adjust for handler fallback removal ---------------------------------------------------------------- Dave Hansen (1): selftests/sgx: remove checks for file execute permissions Jarkko Sakkinen (5): selftests/sgx: Rename 'eenter' and 'sgx_call_vdso' selftests/sgx: Migrate to kselftest harness selftests/sgx: Dump enclave memory map selftests/sgx: Add EXPECT_EEXIT() macro selftests/sgx: Refine the test enclave to have storage Kees Cook (3): selftests/tls: Add {} to avoid static checker warning selftests: splice: Adjust for handler fallback removal selftests: lib.mk: Also install "config" and "settings" Krzysztof Kozlowski (1): selftests/ftrace: fix event-no-pid on 1-core machine Po-Hsu Lin (1): selftests: timers: rtcpie: skip test if default RTC device does not exist Xiaochen Shen (1): selftests/resctrl: Fix incorrect parsing of option "-t" .../selftests/ftrace/test.d/event/event-no-pid.tc | 7 + tools/testing/selftests/lib.mk | 1 + tools/testing/selftests/net/tls.c | 3 +- tools/testing/selftests/resctrl/README | 2 +- tools/testing/selftests/resctrl/resctrl_tests.c | 4 +- tools/testing/selftests/sgx/call.S | 6 +- tools/testing/selftests/sgx/defines.h | 10 + tools/testing/selftests/sgx/load.c | 19 +- tools/testing/selftests/sgx/main.c | 239 +++++++++++++-------- tools/testing/selftests/sgx/main.h | 4 +- tools/testing/selftests/sgx/test_encl.c | 19 +- tools/testing/selftests/sgx/test_encl.lds | 3 +- .../testing/selftests/splice/short_splice_read.sh | 119 ++++++++-- tools/testing/selftests/timers/rtcpie.c | 10 +- 14 files changed, 308 insertions(+), 138 deletions(-) ----------------------------------------------------------------

4 years, 2 months

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[PATCH] KVM: selftests: do not require 64GB in set_memory_region_test

by Christian Borntraeger

Unless the user sets overcommit_memory or has plenty of swap, the latest changes to the testcase will result in ENOMEM failures for hosts with less than 64GB RAM. As we do not use much of the allocated memory, we can use MAP_NORESERVE to avoid this error. Cc: Zenghui Yu <yuzenghui(a)huawei.com> Cc: vkuznets(a)redhat.com Cc: wanghaibin.wang(a)huawei.com Cc: stable(a)vger.kernel.org Fixes: 309505dd5685 ("KVM: selftests: Fix mapping length truncation in m{,un}map()") Signed-off-by: Christian Borntraeger <borntraeger(a)de.ibm.com> --- tools/testing/selftests/kvm/set_memory_region_test.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c index d8812f27648c..d31f54ac4e98 100644 --- a/tools/testing/selftests/kvm/set_memory_region_test.c +++ b/tools/testing/selftests/kvm/set_memory_region_test.c @@ -377,7 +377,8 @@ static void test_add_max_memory_regions(void) (max_mem_slots - 1), MEM_REGION_SIZE >> 10); mem = mmap(NULL, (size_t)max_mem_slots * MEM_REGION_SIZE + alignment, - PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0); TEST_ASSERT(mem != MAP_FAILED, "Failed to mmap() host"); mem_aligned = (void *)(((size_t) mem + alignment - 1) & ~(alignment - 1)); -- 2.31.1

4 years, 2 months

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[PATCH] selftests/memfd: remove unused variable

by Greg Thelen

Commit 544029862cbb ("selftests/memfd: add tests for F_SEAL_FUTURE_WRITE seal") added an unused variable to mfd_assert_reopen_fd(). Delete the unused variable. Fixes: 544029862cbb ("selftests/memfd: add tests for F_SEAL_FUTURE_WRITE seal") Signed-off-by: Greg Thelen <gthelen(a)google.com> --- tools/testing/selftests/memfd/memfd_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c index 74baab83fec3..192a2899bae8 100644 --- a/tools/testing/selftests/memfd/memfd_test.c +++ b/tools/testing/selftests/memfd/memfd_test.c @@ -56,7 +56,7 @@ static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags) static int mfd_assert_reopen_fd(int fd_in) { - int r, fd; + int fd; char path[100]; sprintf(path, "/proc/self/fd/%d", fd_in); -- 2.32.0.93.g670b81a890-goog

4 years, 2 months

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[PATCH v2] kunit: tool: Fix error messages for cases of no tests and wrong TAP header

by Rae Moar

This patch addresses misleading error messages reported by kunit_tool in two cases. First, in the case of TAP output having an incorrect header format or missing a header, the parser used to output an error message of 'no tests run!'. Now the parser outputs an error message of 'could not parse test results!'. As an example: Before: $ ./tools/testing/kunit/kunit.py parse /dev/null [ERROR] no tests run! ... After: $ ./tools/testing/kunit/kunit.py parse /dev/null [ERROR] could not parse test results! ... Second, in the case of TAP output with the correct header but no tests, the parser used to output an error message of 'could not parse test results!'. Now the parser outputs an error message of 'no tests run!'. As an example: Before: $ echo -e 'TAP version 14\n1..0' | ./tools/testing/kunit/kunit.py parse [ERROR] could not parse test results! After: $ echo -e 'TAP version 14\n1..0' | ./tools/testing/kunit/kunit.py parse [ERROR] no tests run! Additionally, this patch also corrects the tests in kunit_tool_test.py and adds a test to check the error in the case of TAP output with the correct header but no tests. Signed-off-by: Rae Moar <rmoar(a)google.com> Reviewed-by: David Gow <davidgow(a)google.com> Reviewed-by: Daniel Latypov <dlatypov(a)google.com> --- V1 -> V2: * Simplified log for the test for TAP output with the correct header but no tests * Added examples in commit message of error messages before and after --- tools/testing/kunit/kunit_parser.py | 6 ++++-- tools/testing/kunit/kunit_tool_test.py | 16 +++++++++++++--- ...st_is_test_passed-no_tests_run_no_header.log} | 0 ...t_is_test_passed-no_tests_run_with_header.log | 2 ++ 4 files changed, 19 insertions(+), 5 deletions(-) rename tools/testing/kunit/test_data/{test_is_test_passed-no_tests_run.log => test_is_test_passed-no_tests_run_no_header.log} (100%) create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index c3c524b79db8..b88db3f51dc5 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -338,9 +338,11 @@ def bubble_up_suite_errors(test_suites: Iterable[TestSuite]) -> TestStatus: def parse_test_result(lines: LineStream) -> TestResult: consume_non_diagnostic(lines) if not lines or not parse_tap_header(lines): - return TestResult(TestStatus.NO_TESTS, [], lines) + return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) expected_test_suite_num = parse_test_plan(lines) - if not expected_test_suite_num: + if expected_test_suite_num == 0: + return TestResult(TestStatus.NO_TESTS, [], lines) + elif expected_test_suite_num is None: return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) test_suites = [] for i in range(1, expected_test_suite_num + 1): diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index bdae0e5f6197..75045aa0f8a1 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -157,8 +157,18 @@ class KUnitParserTest(unittest.TestCase): kunit_parser.TestStatus.FAILURE, result.status) + def test_no_header(self): + empty_log = test_data_path('test_is_test_passed-no_tests_run_no_header.log') + with open(empty_log) as file: + result = kunit_parser.parse_run_tests( + kunit_parser.extract_tap_lines(file.readlines())) + self.assertEqual(0, len(result.suites)) + self.assertEqual( + kunit_parser.TestStatus.FAILURE_TO_PARSE_TESTS, + result.status) + def test_no_tests(self): - empty_log = test_data_path('test_is_test_passed-no_tests_run.log') + empty_log = test_data_path('test_is_test_passed-no_tests_run_with_header.log') with open(empty_log) as file: result = kunit_parser.parse_run_tests( kunit_parser.extract_tap_lines(file.readlines())) @@ -173,7 +183,7 @@ class KUnitParserTest(unittest.TestCase): with open(crash_log) as file: result = kunit_parser.parse_run_tests( kunit_parser.extract_tap_lines(file.readlines())) - print_mock.assert_any_call(StrContains('no tests run!')) + print_mock.assert_any_call(StrContains('could not parse test results!')) print_mock.stop() file.close() @@ -309,7 +319,7 @@ class KUnitJsonTest(unittest.TestCase): result["sub_groups"][1]["test_cases"][0]) def test_no_tests_json(self): - result = self._json_for('test_is_test_passed-no_tests_run.log') + result = self._json_for('test_is_test_passed-no_tests_run_with_header.log') self.assertEqual(0, len(result['sub_groups'])) class StrContains(str): diff --git a/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run.log b/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_no_header.log similarity index 100% rename from tools/testing/kunit/test_data/test_is_test_passed-no_tests_run.log rename to tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_no_header.log diff --git a/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log b/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log new file mode 100644 index 000000000000..5f48ee659d40 --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log @@ -0,0 +1,2 @@ +TAP version 14 +1..0 -- 2.32.0.93.g670b81a890-goog

4 years, 2 months

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[PATCH v8 0/7] Syscall User Dispatch

by Gabriel Krisman Bertazi

Hi, This is v8 of syscall user dispatch. Last version got some acks but there was one small documentation fix I wanted to do, as requested by Florian. This also addresses the commit message fixup Peter requested. The only actual code change from v7 is solving a trivial merge conflict I myself created with the entry code fixup I made week and with something else in the TIP tree. I also shared this with glibc and there wasn't any complaints other than the matter about user-notif vs. siginfo, which was discussed in v7 and the understanding is that it is not necessary now and can be added later, if needed, on the same infrastructure without a new api. I'm not sure about TIP the rules, but is it too late to be queued for the next merge window? I'd love to have this in 5.11 if possible, since it has been flying for quite a while. This is based on tip/master. As usual, a working tree with this patchset is available at: https://gitlab.collabora.com/krisman/linux -b syscall-user-dispatch-v8 Previous submissions are archived at: RFC/v1: https://lkml.org/lkml/2020/7/8/96 v2: https://lkml.org/lkml/2020/7/9/17 v3: https://lkml.org/lkml/2020/7/12/4 v4: https://www.spinics.net/lists/linux-kselftest/msg16377.html v5: https://lkml.org/lkml/2020/8/10/1320 v6: https://lkml.org/lkml/2020/9/4/1122 v7: https://lwn.net/Articles/837598/ Gabriel Krisman Bertazi (7): x86: vdso: Expose sigreturn address on vdso to the kernel signal: Expose SYS_USER_DISPATCH si_code type kernel: Implement selective syscall userspace redirection entry: Support Syscall User Dispatch on common syscall entry selftests: Add kselftest for syscall user dispatch selftests: Add benchmark for syscall user dispatch docs: Document Syscall User Dispatch .../admin-guide/syscall-user-dispatch.rst | 87 +++++ arch/x86/entry/vdso/vdso2c.c | 2 + arch/x86/entry/vdso/vdso32/sigreturn.S | 2 + arch/x86/entry/vdso/vma.c | 15 + arch/x86/include/asm/elf.h | 2 + arch/x86/include/asm/vdso.h | 2 + arch/x86/kernel/signal_compat.c | 2 +- fs/exec.c | 3 + include/linux/entry-common.h | 2 + include/linux/sched.h | 2 + include/linux/syscall_user_dispatch.h | 40 +++ include/linux/thread_info.h | 2 + include/uapi/asm-generic/siginfo.h | 3 +- include/uapi/linux/prctl.h | 5 + kernel/entry/Makefile | 2 +- kernel/entry/common.c | 17 + kernel/entry/common.h | 16 + kernel/entry/syscall_user_dispatch.c | 102 ++++++ kernel/fork.c | 1 + kernel/sys.c | 5 + tools/testing/selftests/Makefile | 1 + .../syscall_user_dispatch/.gitignore | 3 + .../selftests/syscall_user_dispatch/Makefile | 9 + .../selftests/syscall_user_dispatch/config | 1 + .../syscall_user_dispatch/sud_benchmark.c | 200 +++++++++++ .../syscall_user_dispatch/sud_test.c | 310 ++++++++++++++++++ 26 files changed, 833 insertions(+), 3 deletions(-) create mode 100644 Documentation/admin-guide/syscall-user-dispatch.rst create mode 100644 include/linux/syscall_user_dispatch.h create mode 100644 kernel/entry/common.h create mode 100644 kernel/entry/syscall_user_dispatch.c create mode 100644 tools/testing/selftests/syscall_user_dispatch/.gitignore create mode 100644 tools/testing/selftests/syscall_user_dispatch/Makefile create mode 100644 tools/testing/selftests/syscall_user_dispatch/config create mode 100644 tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c create mode 100644 tools/testing/selftests/syscall_user_dispatch/sud_test.c -- 2.29.2

4 years, 2 months

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[PATCH] kunit: tool: Fix error messages for cases of no tests and wrong TAP header

by Rae Moar

This patch addresses misleading error messages reported by kunit_tool in two cases. First, in the case of TAP output having an incorrect header format or missing a header, the parser used to output an error message of 'no tests run!'. Now the parser outputs an error message of 'could not parse test results!'. As an example: Before: $ ./tools/testing/kunit/kunit.py parse /dev/null [ERROR] no tests run! ... After: $ ./tools/testing/kunit/kunit.py parse /dev/null [ERROR] could not parse test results! ... Second, in the case of TAP output with the correct header but no tests, the parser used to output an error message of 'could not parse test results!'. Now the parser outputs an error message of 'no tests run!'. As an example: Before: $ echo -e 'TAP version 14\n1..0' | ./tools/testing/kunit/kunit.py parse [ERROR] could not parse test results! After: $ echo -e 'TAP version 14\n1..0' | ./tools/testing/kunit/kunit.py parse [ERROR] no tests run! Additionally, this patch also corrects the tests in kunit_tool_test.py and adds a test to check the error in the case of TAP output with the correct header but no tests (the log for this test was simplified from the first version of this patch). Signed-off-by: Rae Moar <rmoar(a)google.com> --- tools/testing/kunit/kunit_parser.py | 6 ++++-- tools/testing/kunit/kunit_tool_test.py | 16 +++++++++++++--- ...st_is_test_passed-no_tests_run_no_header.log} | 0 ...t_is_test_passed-no_tests_run_with_header.log | 2 ++ 4 files changed, 19 insertions(+), 5 deletions(-) rename tools/testing/kunit/test_data/{test_is_test_passed-no_tests_run.log => test_is_test_passed-no_tests_run_no_header.log} (100%) create mode 100644 tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py index c3c524b79db8..b88db3f51dc5 100644 --- a/tools/testing/kunit/kunit_parser.py +++ b/tools/testing/kunit/kunit_parser.py @@ -338,9 +338,11 @@ def bubble_up_suite_errors(test_suites: Iterable[TestSuite]) -> TestStatus: def parse_test_result(lines: LineStream) -> TestResult: consume_non_diagnostic(lines) if not lines or not parse_tap_header(lines): - return TestResult(TestStatus.NO_TESTS, [], lines) + return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) expected_test_suite_num = parse_test_plan(lines) - if not expected_test_suite_num: + if expected_test_suite_num == 0: + return TestResult(TestStatus.NO_TESTS, [], lines) + elif expected_test_suite_num is None: return TestResult(TestStatus.FAILURE_TO_PARSE_TESTS, [], lines) test_suites = [] for i in range(1, expected_test_suite_num + 1): diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index bdae0e5f6197..75045aa0f8a1 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -157,8 +157,18 @@ class KUnitParserTest(unittest.TestCase): kunit_parser.TestStatus.FAILURE, result.status) + def test_no_header(self): + empty_log = test_data_path('test_is_test_passed-no_tests_run_no_header.log') + with open(empty_log) as file: + result = kunit_parser.parse_run_tests( + kunit_parser.extract_tap_lines(file.readlines())) + self.assertEqual(0, len(result.suites)) + self.assertEqual( + kunit_parser.TestStatus.FAILURE_TO_PARSE_TESTS, + result.status) + def test_no_tests(self): - empty_log = test_data_path('test_is_test_passed-no_tests_run.log') + empty_log = test_data_path('test_is_test_passed-no_tests_run_with_header.log') with open(empty_log) as file: result = kunit_parser.parse_run_tests( kunit_parser.extract_tap_lines(file.readlines())) @@ -173,7 +183,7 @@ class KUnitParserTest(unittest.TestCase): with open(crash_log) as file: result = kunit_parser.parse_run_tests( kunit_parser.extract_tap_lines(file.readlines())) - print_mock.assert_any_call(StrContains('no tests run!')) + print_mock.assert_any_call(StrContains('could not parse test results!')) print_mock.stop() file.close() @@ -309,7 +319,7 @@ class KUnitJsonTest(unittest.TestCase): result["sub_groups"][1]["test_cases"][0]) def test_no_tests_json(self): - result = self._json_for('test_is_test_passed-no_tests_run.log') + result = self._json_for('test_is_test_passed-no_tests_run_with_header.log') self.assertEqual(0, len(result['sub_groups'])) class StrContains(str): diff --git a/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run.log b/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_no_header.log similarity index 100% rename from tools/testing/kunit/test_data/test_is_test_passed-no_tests_run.log rename to tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_no_header.log diff --git a/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log b/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log new file mode 100644 index 000000000000..5f48ee659d40 --- /dev/null +++ b/tools/testing/kunit/test_data/test_is_test_passed-no_tests_run_with_header.log @@ -0,0 +1,2 @@ +TAP version 14 +1..0 -- 2.32.0.93.g670b81a890-goog

4 years, 2 months

2
1
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[PATCH v1 0/4] Landlock filesystem caching

by Mickaël Salaün

Hi, The goal of this patch series is to reduce the performance impact of walking through a lot of files while being landlocked. Indeed, because of the unprivileged nature of Landlock, each file access implies to check access granted to each directory of the path, which slows down open time. Currently, openat(2) calls spend more than 22% of their time in hook_file_open(). The performance impact for a common worth case scenario is significantly reduced thanks to this patch series, theoretically going from O(n) with n as the depth of a path, to O(1) (cf. benchmarks in the caching patch). This series adds a new security hook (resolve_path_at) and uses it to implement access caching in Landlock. I'm planning to build on top of that for other improvements (using task's working directory and task's root directory) but that will require other hook changes. This new hook is also a first step to be able to securely restrict file descriptors used for path resolution (e.g. dirfd in openat2). Caching may be difficult to get right especially for security checks. I extended the current tests and I'm still working on new ones. If you have test/attack scenarios, please share them. I would really appreciate constructive reviews for these critical changes. This series can be applied on top of v5.13 . Regards, Mickaël Salaün (4): fs,security: Add resolve_path_at() hook landlock: Add filesystem rule caching selftests/landlock: Work in a temporary directory selftests/landlock: Check all possible intermediate directories fs/namei.c | 9 + include/linux/lsm_hook_defs.h | 2 + include/linux/lsm_hooks.h | 8 + include/linux/security.h | 9 + security/landlock/cache.h | 77 +++++++ security/landlock/cred.c | 15 +- security/landlock/cred.h | 20 +- security/landlock/fs.c | 224 +++++++++++++++++++-- security/landlock/fs.h | 29 +++ security/landlock/setup.c | 2 + security/security.c | 6 + tools/testing/selftests/landlock/fs_test.c | 205 ++++++++++++++----- 12 files changed, 544 insertions(+), 62 deletions(-) create mode 100644 security/landlock/cache.h base-commit: 62fb9874f5da54fdb243003b386128037319b219 -- 2.32.0

4 years, 2 months

1
4
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[PATCH] kselftest/kselftest_harness.h: do not redefine ARRAY_SIZE

by Peter Oskolkov

Macro ARRAY_SIZE is defined in tools/include/linux/kernel.h, so if both headers are included there is a warning. Signed-off-by: Peter Oskolkov <posk(a)google.com> --- tools/testing/selftests/kselftest_harness.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h index ae0f0f33b2a6..75164e23f036 100644 --- a/tools/testing/selftests/kselftest_harness.h +++ b/tools/testing/selftests/kselftest_harness.h @@ -671,7 +671,9 @@ #define EXPECT_STRNE(expected, seen) \ __EXPECT_STR(expected, seen, !=, 0) +#ifndef ARRAY_SIZE #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) +#endif /* Support an optional handler after and ASSERT_* or EXPECT_*. The approach is * not thread-safe, but it should be fine in most sane test scenarios. -- 2.32.0.93.g670b81a890-goog

4 years, 2 months

2
1
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[PATCH 0/1] add KSM selftests

by Zhansaya Bagdauletkyzy

As a part of the Outreachy internship project, add unit tests for Kernel Samepage Merging. More tests to be added later; they would focus on unmerging, handling zero pages and pages in different NUMA nodes. Zhansaya Bagdauletkyzy (1): selftests: vm: add KSM tests tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 1 + tools/testing/selftests/vm/ksm_tests.c | 289 ++++++++++++++++++++++ tools/testing/selftests/vm/run_vmtests.sh | 16 ++ 4 files changed, 307 insertions(+) create mode 100644 tools/testing/selftests/vm/ksm_tests.c -- 2.25.1

4 years, 2 months

1
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