ntsync synchronization primitive driver · Supported

Maintainers

• M Elizabeth Figura <zfigura@codeweavers.com>

Paths

• F Documentation/userspace-api/ntsync.rst
• F drivers/misc/ntsync.c
• F include/uapi/linux/ntsync.h
• F tools/testing/selftests/drivers/ntsync/

Last 30 days

Recent patches

Most-recent 30 patches in this subsystem on linux-api (capped at 30), ordered by date desc.

• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 1/5] selftests: ntsync: fix wake_all CREATE_EVENT fd expectation
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com>
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 4/5] docs: ntsync: align ioctl names and struct layouts with uapi
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com>
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 2/5] selftests: ntsync: add wait argument validation tests
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com>
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 5/5] selftests: ntsync: test absolute MONOTONIC waits under time namespaces
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com>
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 3/5] ntsync: reject wait ioctls with zero owner
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com>
• COLD55d REVIEWED: 1 (1M) [PATCH 4/4] ntsync: reject wait ioctls with zero owner
  2026-07-20 · Elizabeth Figura <zfigura@codeweavers.com>
• COLD55d REVIEWED: 1 (1M) [PATCH 1/4] docs: ntsync: align uAPI ioctl names and struct layout with ntsync.h
  2026-07-20 · Elizabeth Figura <zfigura@codeweavers.com>
• COLD55d REVIEWED: 1 (1M) [PATCH 3/4] selftests: ntsync: add wait argument validation tests
  2026-07-20 · Elizabeth Figura <zfigura@codeweavers.com>
• COLD55d REVIEWED: 1 (1M) [PATCH 2/4] selftests: ntsync: fix wake_all CREATE_EVENT fd expectation
  2026-07-20 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE573d LANDED [PATCH v2] ntsync: Check wait count based on byte size.
  2025-02-20 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE575d LANDED [PATCH] ntsync: Set the permissions to be 0666
  2025-02-14 · Mike Lothian <hidden>
• STALE617d LANDED [PATCH v7 29/30] docs: ntsync: Add documentation for the ntsync uAPI.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 27/30] selftests: ntsync: Add a stress test for contended waits.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 26/30] selftests: ntsync: Add some tests for wakeup signaling via alerts.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 25/30] selftests: ntsync: Add tests for alertable waits.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 24/30] selftests: ntsync: Add some tests for wakeup signaling with events.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 23/30] selftests: ntsync: Add some tests for auto-reset event state.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 22/30] selftests: ntsync: Add some tests for manual-reset event state.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 20/30] selftests: ntsync: Add some tests for wakeup signaling with WINESYNC_IOC_WAIT_ANY.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 21/30] selftests: ntsync: Add some tests for wakeup signaling with WINESYNC_IOC_WAIT_ALL.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 19/30] selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ALL.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 18/30] selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ANY.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 17/30] selftests: ntsync: Add some tests for mutex state.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 16/30] selftests: ntsync: Add some tests for semaphore state.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 15/30] ntsync: Introduce alertable waits.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 14/30] ntsync: Introduce NTSYNC_IOC_EVENT_READ.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 13/30] ntsync: Introduce NTSYNC_IOC_MUTEX_READ.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 06/30] ntsync: Introduce NTSYNC_IOC_MUTEX_UNLOCK.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 07/30] ntsync: Introduce NTSYNC_IOC_MUTEX_KILL.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>
• STALE617d LANDED [PATCH v7 05/30] ntsync: Introduce NTSYNC_IOC_CREATE_MUTEX.
  2024-12-13 · Elizabeth Figura <zfigura@codeweavers.com>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• COLD55d REVIEWED: 1 (1M) [PATCH 2/4] selftests: ntsync: fix wake_all CREATE_EVENT fd expectation
  2026-07-20 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by
• COLD55d REVIEWED: 1 (1M) [PATCH 3/4] selftests: ntsync: add wait argument validation tests
  2026-07-20 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by
• COLD55d REVIEWED: 1 (1M) [PATCH 1/4] docs: ntsync: align uAPI ioctl names and struct layout with ntsync.h
  2026-07-20 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 1/5] selftests: ntsync: fix wake_all CREATE_EVENT fd expectation
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 4/5] docs: ntsync: align ioctl names and struct layouts with uapi
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 2/5] selftests: ntsync: add wait argument validation tests
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 5/5] selftests: ntsync: test absolute MONOTONIC waits under time namespaces
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2 3/5] ntsync: reject wait ioctls with zero owner
  2026-07-23 · Elizabeth Figura <zfigura@codeweavers.com> · 1 Reviewed-by