kernel/linux.git/tools/testing/selftests/pidfd, branch v6.12.80

pidfs: add selftests for new namespace ioctls

2024-07-24T08:53:13+00:00

Add selftests to verify that deriving namespace file descriptors from pidfd file descriptors works correctly. Link: https://lore.kernel.org/r/20240722-work-pidfs-69dbea91edab@brauner Signed-off-by: Christian Brauner

Merge tag 'linux_kselftest-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2024-05-14T18:36:54+00:00

Pull kselftest updates from Shuah Khan: - make framework and tests reporting KTAP compliant - make ktap_helpers and power_supply test POSIX compliant - add ksft_exit_fail_perror() to include errono in string form - avoid clang reporting false positive static analysis errors about functions that exit and never return. ksft_exit* functions are marked __noreturn to address this problem - add mechanism for reporting a KSFT_ result code - fix build warnings related missing headers and unused variables - fix clang build failures - cleanups to resctrl test - add host arch for LLVM builds * tag 'linux_kselftest-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (44 commits) selftests/sgx: Include KHDR_INCLUDES in Makefile selftests: Compile kselftest headers with -D_GNU_SOURCE selftests/resctrl: fix clang build warnings related to abs(), labs() calls selftests/ftrace: Fix checkbashisms errors selftests/ftrace: Fix BTFARG testcase to check fprobe is enabled correctly selftests/capabilities: fix warn_unused_result build warnings selftests: filesystems: add missing stddef header selftests: kselftest_deps: fix l5_test() empty variable selftests: default to host arch for LLVM builds selftests/resctrl: fix clang build failure: use LOCAL_HDRS selftests/binderfs: use the Makefile's rules, not Make's implicit rules Documentation: kselftest: fix codeblock selftests: kselftest: Make ksft_exit functions return void instead of int selftests: x86: ksft_exit_pass() does not return selftests: timers: ksft_exit functions do not return selftests: sync: ksft_exit_pass() does not return selftests/resctrl: ksft_exit_skip() does not return selftests: pidfd: ksft_exit functions do not return selftests/mm: ksft_exit functions do not return selftests: membarrier: ksft_exit_pass() does not return ...

selftests/pidfd: Fix wrong expectation

2024-05-11T17:18:46+00:00

Replace a wrong EXPECT_GT(self->child_pid_exited, 0) with EXPECT_GE(), which will be actually tested on the parent and child sides with a following commit. Cc: Shuah Khan Reviewed-by: Kees Cook Reviewed-by: Christian Brauner Link: https://lore.kernel.org/r/20240511171445.904356-8-mic@digikod.net Signed-off-by: Mickaël Salaün

selftests/pidfd: Fix config for pidfd_setns_test

2024-05-11T17:18:39+00:00

Required by switch_timens() to open /proc/self/ns/time_for_children. CONFIG_GENERIC_VDSO_TIME_NS is not available on UML, so pidfd_setns_test cannot be run successfully on this architecture. Cc: Shuah Khan Fixes: 2b40c5db73e2 ("selftests/pidfd: add pidfd setns tests") Reviewed-by: Kees Cook Reviewed-by: Christian Brauner Link: https://lore.kernel.org/r/20240511171445.904356-2-mic@digikod.net Signed-off-by: Mickaël Salaün

selftests: pidfd: ksft_exit functions do not return

2024-05-06T19:57:20+00:00

After commit f7d5bcd35d42 ("selftests: kselftest: Mark functions that unconditionally call exit() as __noreturn"), ksft_exit_...() functions are marked as __noreturn, which means the return type should not be 'int' but 'void' because they are not returning anything (and never were since exit() has always been called). To facilitate updating the return type of these functions, remove 'return' before the calls to ksft_exit_{pass,fail}(), as __noreturn prevents the compiler from warning that a caller of the ksft_exit functions does not return a value because the program will terminate upon calling these functions. Just removing 'return' would have resulted in !ret ? ksft_exit_pass() : ksft_exit_fail(); so convert that into the more idiomatic if (ret) ksft_exit_fail(); ksft_exit_pass(); Reviewed-by: Muhammad Usama Anjum Reviewed-by: Thomas Gleixner Signed-off-by: Nathan Chancellor Signed-off-by: Shuah Khan

selftests: add ESRCH tests for pidfd_getfd()

2024-02-07T14:48:31+00:00

Ensure that pidfd_getfd() reports -ESRCH if the task is already exiting. Signed-off-by: Tycho Andersen Link: https://lore.kernel.org/r/20240206192357.81942-1-tycho@tycho.pizza Signed-off-by: Christian Brauner

selftests/pidfd: Fix ksft print formats

2023-10-13T20:08:21+00:00

Compiling pidfd selftest after adding a __printf() attribute to ksft_print_msg() and ksft_test_result_pass() exposes -Wformat warnings in error_report(), test_pidfd_poll_exec_thread(), child_poll_exec_test(), test_pidfd_poll_leader_exit_thread(), child_poll_leader_exit_test(). The ksft_test_result_pass() in error_report() expects a string but doesn't provide any argument after the format string. All the other calls to ksft_print_msg() in the functions mentioned above have format strings that don't match with other passed arguments. Fix format specifiers so they match the passed variables. Add a missing variable to ksft_test_result_pass() inside error_report() so it matches other cases in the switch statement. Fixes: 2def297ec7fb ("pidfd: add tests for NSpid info in fdinfo") Signed-off-by: Maciej Wieczor-Retman Signed-off-by: Shuah Khan

selftest: pidfd: Omit long and repeating outputs

2023-06-12T22:39:11+00:00

An output message: > # # waitpid WEXITSTATUS=0 will be printed for 30,000+ times in the `pidfd_test` selftest, which does not seem ideal. This patch removes the print logic in the `wait_for_pid` function, so each call to this function does not output a line by default. Any existing call sites where the extra line might be beneficial have been modified to include extra print statements outside of the function calls. Signed-off-by: Ziqi Zhao Reviewed-by: Christian Brauner Signed-off-by: Shuah Khan

selftests: pidfd: Fix incorrect kernel headers search path

2023-02-13T16:09:45+00:00

Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Cc: Ingo Molnar Cc: # 5.18+ Signed-off-by: Shuah Khan

selftests/pidfd_test: Remove the erroneous ','

2022-11-02T09:09:57+00:00

Remove the erroneous ',', otherwise it might result in wrong output and report: ... Bail out! (errno %d) test: Unexpected epoll_wait result (c=4208480, events=2) ... Fixes: 740378dc7834 ("pidfd: add polling selftests") Signed-off-by: Zhao Gongyi Signed-off-by: Shuah Khan