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| author |   Christian Brauner <brauner@kernel.org> | 2025-03-05 11:08:22 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-03-05 13:26:21 +0100 |
| commit | a79975f05e5b3c38a4aa215809e0d04928451ad9 (patch) | |
| tree | 80d00e76351bdf17cfe20fa0498ae99c8487926e | |
| parent | selftests/pidfd: add second PIDFD_INFO_EXIT selftest (diff) | |
| download | wireguard-linux-a79975f05e5b3c38a4aa215809e0d04928451ad9.tar.xz wireguard-linux-a79975f05e5b3c38a4aa215809e0d04928451ad9.zip | |
selftests/pidfd: add third PIDFD_INFO_EXIT selftest
Add a selftest for PIDFD_INFO_EXIT behavior.
Link: https://lore.kernel.org/r/20250305-work-pidfs-kill_on_last_close-v3-12-c8c3d8361705@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | tools/testing/selftests/pidfd/pidfd_info_test.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/testing/selftests/pidfd/pidfd_info_test.c b/tools/testing/selftests/pidfd/pidfd_info_test.c index 2a5742a2a55f..2917e7a03b31 100644 --- a/tools/testing/selftests/pidfd/pidfd_info_test.c +++ b/tools/testing/selftests/pidfd/pidfd_info_test.c @@ -161,4 +161,20 @@ TEST_F(pidfd_info, sigkill_reaped) ASSERT_EQ(WTERMSIG(info.exit_code), SIGKILL); } +TEST_F(pidfd_info, success_exit) +{ + struct pidfd_info info = { + .mask = PIDFD_INFO_CGROUPID, + }; + + /* Process has exited but not been reaped so this must work. */ + ASSERT_EQ(ioctl(self->child_pidfd3, PIDFD_GET_INFO, &info), 0); + + info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT; + ASSERT_EQ(ioctl(self->child_pidfd3, PIDFD_GET_INFO, &info), 0); + ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CREDS)); + /* Process has exited but not been reaped, so no PIDFD_INFO_EXIT information yet. */ + ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT)); +} + TEST_HARNESS_MAIN |