tracing · Maintained

Maintainers

• M Steven Rostedt <rostedt@goodmis.org>
• M Masami Hiramatsu <mhiramat@kernel.org>
• R Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Paths

• F Documentation/core-api/tracepoint.rst
• F Documentation/trace/*
• F fs/tracefs/
• F include/linux/trace*.h
• F include/trace/
• F kernel/trace/
• F kernel/tracepoint.c
• F scripts/tracing/
• F scripts/tracepoint-update.c
• F tools/testing/selftests/ftrace/

Last 30 days

Most active threads (last 7 days)

• COOLING5d [PATCH v7 00/22] dma-mapping: Track shared DMA state through direct, pool and swiotlb paths
  2026-07-01 05:51 · 1 reply in 7d · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>

Active reviewers (last 30 days)

• Yury Norov <yury.norov@gmail.com>
  2 attestations (2 Suggested-by) · last on 2026-06-25
• Masami Hiramatsu (Google) <mhiramat@kernel.org>
  2 attestations (2 Acked-by) · last on 2026-06-25

Recent patches

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

• COOLING5d [PATCH v7 09/22] dma-mapping: Add internal shared allocation attribute
  2026-07-01 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COOLING4d REVIEWED: 9 (9M) [PATCH v4 1/2] tracing: Move non-trace_printk prototypes into trace_controls.h
  2026-06-25 · Steven Rostedt <rostedt@kernel.org>
• COOLING4d REVIEWED: 9 (9M) [PATCH v4 2/2] tracing: Remove trace_printk.h from kernel.h
  2026-06-25 · Steven Rostedt <rostedt@kernel.org>
• COOLING5d [PATCH 2/2] tracing: Add CONFIG_TRACE_PRINTK_DEBUGGING to clean up kernel.h
  2026-06-21 · Steven Rostedt <rostedt@kernel.org>
• STALE155d REVIEWED: 17 (17M) [PATCH v4 19/54] convert tracefs
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE155d REVIEWED: 17 (17M) [PATCH v4 02/54] tracefs: fix a leak in eventfs_create_events_dir()
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE230d REVIEWED: 17 (17M) [PATCH v3 02/50] tracefs: fix a leak in eventfs_create_events_dir()
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE230d REVIEWED: 17 (17M) [PATCH v3 19/50] convert tracefs
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE223d [PATCH v2 19/50] convert tracefs
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE223d [PATCH v2 02/50] tracefs: fix a leak in eventfs_create_events_dir()
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE285d [PATCH 17/39] convert tracefs
  2025-09-20 · Al Viro <viro@zeniv.linux.org.uk>
• STALE286d LANDED: 7 (7M) [PATCH v6 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-09-09 · Leon Romanovsky <leon@kernel.org>
• STALE286d LANDED: 6 (6M) [PATCH v6 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-09-09 · Leon Romanovsky <leon@kernel.org>
• STALE286d LANDED: 6 (6M) [PATCH v6 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-09-09 · Leon Romanovsky <leon@kernel.org>
• STALE304d REVIEWED: 7 (7M) [PATCH v5 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-09-02 · Leon Romanovsky <leon@kernel.org>
• STALE304d REVIEWED: 6 (6M) [PATCH v5 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-09-02 · Leon Romanovsky <leon@kernel.org>
• STALE304d REVIEWED: 6 (6M) [PATCH v5 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-09-02 · Leon Romanovsky <leon@kernel.org>
• STALE291d LANDED: 1 (0M) [PATCH v2 2/4] copy_process: pass clone_flags as u64 across calltree
  2025-09-01 · Simon Schuster via B4 Relay <devnull+schuster.simon.siemens-energy.com@kernel.org>
• STALE301d [PATCH v4 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-08-19 · Leon Romanovsky <leon@kernel.org>
• STALE301d [PATCH v4 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-08-19 · Leon Romanovsky <leon@kernel.org>
• STALE301d [PATCH v4 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-08-19 · Leon Romanovsky <leon@kernel.org>
• STALE324d [PATCH v3 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE324d [PATCH v3 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE324d [PATCH v3 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE326d [PATCH v2 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE326d [PATCH v2 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE326d [PATCH v2 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE326d [PATCH v1 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-08-04 · Leon Romanovsky <leon@kernel.org>
• STALE326d [PATCH v1 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-08-04 · Leon Romanovsky <leon@kernel.org>
• STALE326d [PATCH v1 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-08-04 · Leon Romanovsky <leon@kernel.org>