linux.git/tools/testing/selftests/futex/functional, branch v6.17

selftests/futex: Fix spelling mistake "Succeffuly" -> "Successfully"

2025-07-22T09:18:43+00:00

There is a spelling mistake in a ksft_exit_fail_msg() message. Fix it.

Signed-off-by: Colin Ian King 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20250715130627.1907017-1-colin.i.king@gmail.com

selftests/futex: Remove support for IMMUTABLE

2025-07-11T14:02:01+00:00

Testing for the IMMUTABLE part of the futex interface is not needed
after the removal of the interface.

Remove support for IMMUTABLE from the sefltest.

Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20250710110011.384614-6-bigeasy@linutronix.de

selftests/futex: Adapt the private hash test to RCU related changes

2025-07-11T14:02:00+00:00

The auto scaling on create creation used to automatically assign the new
hash because there was the private hash was unused and could be replaced
right away.

This is already racy because if the private hash is in use by a thread
then the visibile resize will be delayed. With the upcoming change to
wait for a RCU grace period before the hash can be assigned, the test
will always fail.

If the reported number of hash buckets is not updated after an
auto scaling event, block on an acquired lock with a timeout. The timeout
is the delay to wait towards a grace period and locking and a locked
pthread_mutex_t ensure that glibc calls into kernel using futex
operation which will assign new private hash if available.
This will retry every 100ms up to 2 seconds in total.

Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20250710110011.384614-2-bigeasy@linutronix.de

selftests/futex: Add futex_numa to .gitignore

2025-07-06T07:39:01+00:00

futex_numa was never added to the .gitignore file.
Add it.

Fixes: 9140f57c1c13 ("futex,selftests: Add another FUTEX2_NUMA selftest")
Signed-off-by: Terry Tritton 
Signed-off-by: Thomas Gleixner 
Reviewed-by: André Almeida 
Link: https://lore.kernel.org/all/20250704103749.10341-1-terry.tritton@linaro.org

selftests/futex: Set the home_node in futex_numa_mpol

2025-06-05T12:37:58+00:00

The test fails at the MPOL step if multiple nodes are available. The
reason is that mbind() sets the policy but the home_node, which is
retrieved by the futex code, is not set. This causes to retrieve the
current node and with multiple nodes it fails on one of the iterations.

Use numa_set_mempolicy_home_node() to set the expected node.
Use ksft_exit_fail_msg() to fail and exit in order not to confuse ktap.

Fixes: 3163369407baf ("selftests/futex: Add futex_numa_mpol")
Suggested-by: Vlastimil Babka 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lkml.kernel.org/r/20250528085521.1938355-3-bigeasy@linutronix.de

selftests/futex: getopt() requires int as return value.

2025-06-05T12:37:58+00:00

Mark reported that futex_priv_hash fails on ARM64.
It turns out that the command line parsing does not terminate properly
and ends in the default case assuming an invalid option was passed.

Use an int as the return type for getopt().

Closes: https://lore.kernel.org/all/31869a69-063f-44a3-a079-ba71b2506cce@sirena.org.uk/
Fixes: 3163369407baf ("selftests/futex: Add futex_numa_mpol")
Fixes: cda95faef7bcf ("selftests/futex: Add futex_priv_hash")
Reported-by: Mark Brown 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lkml.kernel.org/r/20250528085521.1938355-2-bigeasy@linutronix.de

selftests/futex: Fix spelling mistake "unitiliazed" -> "uninitialized"

2025-05-21T11:57:41+00:00

There is a spelling mistake in a fail error message. Fix it.

Signed-off-by: Colin Ian King 
Signed-off-by: Peter Zijlstra (Intel) 
Reviewed-by: Sebastian Andrzej Siewior 
Link: https://lore.kernel.org/r/20250520080657.30726-1-colin.i.king@gmail.com

tools headers: Synchronize prctl.h ABI header

2025-05-21T11:57:41+00:00

The prctl.h ABI header was slightly updated during the development of
the interface. In particular the "immutable" parameter became a bit in
the option argument.

Synchronize prctl.h ABI header again and make use of the definition in
the testsuite and "perf bench futex".

Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Peter Zijlstra (Intel) 
Reviewed-by: André Almeida 
Link: https://lore.kernel.org/r/20250517151455.1065363-5-bigeasy@linutronix.de

selftests/futex: Use TAP output in futex_numa_mpol

2025-05-21T11:57:40+00:00

Use TAP output for easier automated testing.

Suggested-by: André Almeida 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Peter Zijlstra (Intel) 
Reviewed-by: André Almeida 
Link: https://lore.kernel.org/r/20250517151455.1065363-3-bigeasy@linutronix.de

selftests/futex: Use TAP output in futex_priv_hash

2025-05-21T11:57:40+00:00

Use TAP output for easier automated testing.

Suggested-by: André Almeida 
Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Peter Zijlstra (Intel) 
Reviewed-by: André Almeida 
Link: https://lore.kernel.org/r/20250517151455.1065363-2-bigeasy@linutronix.de