linux/tools/testing/selftests/pidfd/Makefile, branch master

selftests/pidfd: add CLONE_AUTOREAP tests

2026-03-11T22:23:16Z

Add tests for the new CLONE_AUTOREAP clone3() flag: - autoreap_without_pidfd: CLONE_AUTOREAP without CLONE_PIDFD works (fire-and-forget) - autoreap_rejects_exit_signal: CLONE_AUTOREAP with non-zero exit_signal fails - autoreap_rejects_parent: CLONE_AUTOREAP with CLONE_PARENT fails - autoreap_rejects_thread: CLONE_AUTOREAP with CLONE_THREAD fails - autoreap_basic: child exits, pidfd poll works, PIDFD_GET_INFO returns correct exit code, waitpid() returns -ECHILD - autoreap_signaled: child killed by signal, exit info correct via pidfd - autoreap_reparent: autoreap grandchild reparented to subreaper still auto-reaps - autoreap_multithreaded: autoreap process with sub-threads auto-reaps after last thread exits - autoreap_no_inherit: grandchild forked without CLONE_AUTOREAP becomes a regular zombie Link: https://patch.msgid.link/20260226-work-pidfs-autoreap-v5-4-d148b984a989@kernel.org Signed-off-by: Christian Brauner

selftests/pidfd: decode pidfd file handles withou having to specify an fd

2025-06-24T15:06:35Z

Link: https://lore.kernel.org/20250624-work-pidfs-fhandle-v2-11-d02a04858fe3@kernel.org Reviewed-by: Jan Kara Reviewed-by: Amir Goldstein Signed-off-by: Christian Brauner

selftests/pidfd: test setattr support

2025-06-23T10:22:08Z

Verify that ->setattr() on a pidfd doens't work. Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-15-98f3456fd552@kernel.org Reviewed-by: Alexander Mikhalitsyn Signed-off-by: Christian Brauner

selftests/pidfd: test extended attribute support

2025-06-23T10:22:08Z

Add tests for extended attribute support on pidfds. Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-13-98f3456fd552@kernel.org Reviewed-by: Alexander Mikhalitsyn Signed-off-by: Christian Brauner

selftests/pidfd: add seventh PIDFD_INFO_EXIT selftest

2025-03-05T12:26:21Z

Add a selftest for PIDFD_INFO_EXIT behavior. Link: https://lore.kernel.org/r/20250305-work-pidfs-kill_on_last_close-v3-16-c8c3d8361705@kernel.org Signed-off-by: Christian Brauner

selftests/pidfd: add first PIDFD_INFO_EXIT selftest

2025-03-05T12:26:21Z

Add a selftest for PIDFD_INFO_EXIT behavior. Link: https://lore.kernel.org/r/20250305-work-pidfs-kill_on_last_close-v3-10-c8c3d8361705@kernel.org Signed-off-by: Christian Brauner

selftests: add pidfd bind-mount tests

2024-12-22T10:03:13Z

Link: https://lore.kernel.org/r/20241219-work-pidfs-mount-v1-2-dbc56198b839@kernel.org Signed-off-by: Christian Brauner

selftests/pidfd: add pidfs file handle selftests

2024-12-17T08:16:18Z

Add selftests for pidfs file handles. Link: https://lore.kernel.org/r/20241202-imstande-einsicht-d78753e1c632@brauner Reviewed-by: Amir Goldstein Signed-off-by: Christian Brauner

selftests: pidfd: Fix incorrect kernel headers search path

2023-02-13T16:09:45Z

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: Fix compling warnings

2022-10-30T08:23:58Z

Fix warnings and enable Wall. pidfd_wait.c: In function ‘wait_nonblock’: pidfd_wait.c:150:13: warning: unused variable ‘status’ [-Wunused-variable] 150 | int pidfd, status = 0; | ^~~~~~ ... pidfd_test.c: In function ‘child_poll_exec_test’: pidfd_test.c:438:1: warning: no return statement in function returning non-void [-Wreturn-type] 438 | } | ^ Signed-off-by: Li Zhijian v2: fix mistake assignment to pidfd Signed-off-by: Shuah Khan