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2025-01-08selftests: ntsync: Add a stress test for contended waits.Elizabeth Figura1-0/+72
Test a more realistic usage pattern, and one with heavy contention, in order to actually exercise ntsync's internal synchronization. This test has several threads in a tight loop acquiring a mutex, modifying some shared data, and then releasing the mutex. At the end we check if the data is consistent. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-28-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for wakeup signaling via alerts.Elizabeth Figura1-0/+62
Expand the alert tests to cover alerting a thread mid-wait, to test that the relevant scheduling logic works correctly. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-27-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add tests for alertable waits.Elizabeth Figura1-3/+164
Test the "alert" functionality of NTSYNC_IOC_WAIT_ALL and NTSYNC_IOC_WAIT_ANY, when a wait is woken with an alert and when it is woken by an object. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-26-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for wakeup signaling with events.Elizabeth Figura1-4/+141
Expand the contended wait tests, which previously only covered events and semaphores, to cover events as well. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-25-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for auto-reset event state.Elizabeth Figura1-0/+56
Test event-specific ioctls NTSYNC_IOC_EVENT_SET, NTSYNC_IOC_EVENT_RESET, NTSYNC_IOC_EVENT_PULSE, NTSYNC_IOC_EVENT_READ for auto-reset events, and waiting on auto-reset events. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-24-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for manual-reset event state.Elizabeth Figura1-0/+86
Test event-specific ioctls NTSYNC_IOC_EVENT_SET, NTSYNC_IOC_EVENT_RESET, NTSYNC_IOC_EVENT_PULSE, NTSYNC_IOC_EVENT_READ for manual-reset events, and waiting on manual-reset events. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-23-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for wakeup signaling with ↵Elizabeth Figura1-0/+91
WINESYNC_IOC_WAIT_ALL. Test contended "wait-for-all" waits, to make sure that scheduling and wakeup logic works correctly, and that the wait only exits once objects are all simultaneously signaled. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-22-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for wakeup signaling with ↵Elizabeth Figura1-0/+143
WINESYNC_IOC_WAIT_ANY. Test contended "wait-for-any" waits, to make sure that scheduling and wakeup logic works correctly. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-21-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ALL.Elizabeth Figura1-2/+91
Test basic synchronous functionality of NTSYNC_IOC_WAIT_ALL, and when objects are considered simultaneously signaled. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-20-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ANY.Elizabeth Figura1-0/+114
Test basic synchronous functionality of NTSYNC_IOC_WAIT_ANY, when objects are considered signaled or not signaled, and how they are affected by a successful wait. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-19-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for mutex state.Elizabeth Figura1-0/+187
Test mutex-specific ioctls NTSYNC_IOC_MUTEX_UNLOCK and NTSYNC_IOC_MUTEX_READ, and waiting on mutexes. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-18-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-08selftests: ntsync: Add some tests for semaphore state.Elizabeth Figura4-0/+154
Wine has tests for its synchronization primitives, but these are more accessible to kernel developers, and also allow us to test some edge cases that Wine does not care about. This patch adds tests for semaphore-specific ioctls NTSYNC_IOC_SEM_POST and NTSYNC_IOC_SEM_READ, and waiting on semaphores. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-17-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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