kernel/linux.git/tools/testing/selftests/pidfd, branch v6.18.21

vdso: Drop Kconfig GENERIC_VDSO_TIME_NS

2025-09-04T09:23:50+00:00

All architectures implementing time-related functionality in the vDSO are using the generic vDSO library which handles time namespaces properly. Remove the now unnecessary Kconfig symbol. Enables the use of time namespaces on architectures, which use the generic vDSO but did not enable GENERIC_VDSO_TIME_NS, namely MIPS and arm. Signed-off-by: Thomas Weißschuh Signed-off-by: Thomas Gleixner Acked-by: Catalin Marinas Link: https://lore.kernel.org/all/20250826-vdso-cleanups-v1-10-d9b65750e49f@linutronix.de

Merge tag 'linux_kselftest-next-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2025-07-29T19:48:53+00:00

Pull kselftest updates from Shuah Khan: - Fixes: - false failure of subsystem event test - glob filter test to use mutex_unlock() instead of mutex_trylock() - several spelling errors in tests - test_kexec_jump build errors - pidfd test duplicate-symbol warnings for SCHED_ CPP symbols - Add a reliable check for suspend to breakpoints suspend test - Improvements to ipc test * tag 'linux_kselftest-next-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/pidfd: Fix duplicate-symbol warnings for SCHED_ CPP symbols selftests/tracing: Fix false failure of subsystem event test selftests/kexec: fix test_kexec_jump build selftests: breakpoints: use suspend_stats to reliably check suspend success selftests: tracing: Use mutex_unlock for testing glob filter selftests: print installation complete message selftests/ptrace: Fix spelling mistake "multible" -> "multiple" selftests: ipc: Replace fail print statements with ksft_test_result_fail selftests: Add version file to kselftest installation dir selftests/cpu-hotplug: fix typo in hotplaggable_offline_cpus function name

selftests/pidfd: Fix duplicate-symbol warnings for SCHED_ CPP symbols

2025-07-24T22:14:45+00:00

The pidfd selftests run in userspace and include both userspace and kernel header files. On some distros (for example, CentOS), this results in duplicate-symbol warnings in allmodconfig builds, while on other distros (for example, Ubuntu) it does not. Therefore, use #undef to get rid of the userspace definitions in favor of the kernel definitions. Other ways of handling this include splitting up the selftest code so that the userspace definitions go into one translation unit and the kernel definitions into another (which might or might not be feasible) or to adjust compiler command-line options to suppress the warnings (which might or might not be desirable). [ paulmck: Apply Shuah Khan feedback. ] Link: https://lore.kernel.org/r/cc7e4fe7-299f-4bf3-af46-df6551d61997@paulmck-laptop Signed-off-by: Paul E. McKenney Reviewed-by: Shuah Khan Cc: Christian Brauner Cc: Signed-off-by: Shuah Khan

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

2025-06-24T15:06:35+00:00

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

fcntl/pidfd: redefine PIDFD_SELF_THREAD_GROUP

2025-06-24T13:50:15+00:00

Don't jump somewhere into the middle of the reserved range. We're still able to change that value it won't be that widely used yet. If not, we can revert. Signed-off-by: Christian Brauner

selftests/pidfd: test setattr support

2025-06-23T10:22:08+00:00

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

2025-06-23T10:22:08+00:00

Test that extended attributes are permanent. Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-14-98f3456fd552@kernel.org Reviewed-by: Alexander Mikhalitsyn Signed-off-by: Christian Brauner

selftests/pidfd: test extended attribute support

2025-06-23T10:22:08+00:00

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

Merge tag 'vfs-6.16-rc1.selftests' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

2025-05-26T18:32:28+00:00

Pull vfs selftests updates from Christian Brauner: "This contains various cleanups, fixes, and extensions for out filesystem selftests" * tag 'vfs-6.16-rc1.selftests' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests/fs/mount-notify: add a test variant running inside userns selftests/filesystems: create setup_userns() helper selftests/filesystems: create get_unique_mnt_id() helper selftests/fs/mount-notify: build with tools include dir selftests/mount_settattr: remove duplicate syscall definitions selftests/pidfd: move syscall definitions into wrappers.h selftests/fs/statmount: build with tools include dir selftests/filesystems: move wrapper.h out of overlayfs subdir selftests/mount_settattr: ensure that ext4 filesystem can be created selftests/mount_settattr: add missing STATX_MNT_ID_UNIQUE define selftests/mount_settattr: don't define sys_open_tree() twice

selftests/pidfd: add PIDFD_INFO_COREDUMP infrastructure

2025-05-21T11:59:12+00:00

Add PIDFD_INFO_COREDUMP infrastructure so we can use it in tests. Link: https://lore.kernel.org/20250516-work-coredump-socket-v8-8-664f3caf2516@kernel.org Acked-by: Luca Boccassi Reviewed-by: Alexander Mikhalitsyn Signed-off-by: Christian Brauner