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)

• HOTtoday IN LINUX-NEXT [PATCH v2 00/33] mm: make VMA page offset handling more consistent
  2026-07-10 20:24 · 1 reply in 7d · Lorenzo Stoakes <ljs@kernel.org>

Active reviewers (last 30 days)

• Gregory Price <gourry@gourry.net>
  1 attestation (1 Reviewed-by) · last on 2026-07-10
• Pedro Falcato <pfalcato@suse.de>
  1 attestation (1 Acked-by) · last on 2026-07-10

Recent patches

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

• HOTtoday IN LINUX-NEXT: 2 (2M) [PATCH v2 19/33] mm: prefer vma_[start,end]_pgoff() to vma->vm_pgoff in kernel/
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH v3 08/11] dma-buf: heaps: Add support for Tegra VPR
  2026-07-01 · Thierry Reding <thierry.reding@kernel.org>
• HOTtoday [PATCH v7 09/22] dma-mapping: Add internal shared allocation attribute
  2026-07-01 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COOLING5d [PATCH 17/30] mm: prefer vma_[start,end]_pgoff() to vma->vm_pgoff in kernel/
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COLD55d LANDED [PATCH v5 1/2] dma-mapping: introduce DMA_ATTR_CC_SHARED for shared memory
  2026-03-25 · Jiri Pirko <jiri@resnulli.us>
• STALE118d LANDED [PATCH v3 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-16 · Leon Romanovsky <leon@kernel.org>
• STALE118d LANDED [PATCH v3 4/8] dma-mapping: Introduce DMA require coherency attribute
  2026-03-16 · Leon Romanovsky <leon@kernel.org>
• STALE118d LANDED [PATCH v3 2/8] dma-mapping: handle DMA_ATTR_CPU_CACHE_CLEAN in trace output
  2026-03-16 · Leon Romanovsky <leon@kernel.org>
• STALE114d [PATCH v4 1/2] dma-mapping: introduce DMA_ATTR_CC_DECRYPTED for pre-decrypted memory
  2026-03-16 · Jiri Pirko <jiri@resnulli.us>
• STALE126d [PATCH v2 2/8] dma-mapping: handle DMA_ATTR_CPU_CACHE_CLEAN in trace output
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE126d [PATCH v2 4/8] dma-mapping: Introduce DMA require coherency attribute
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE126d [PATCH v2 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE91d [PATCH 15/61] trace: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>
• STALE114d [PATCH net-next v3 1/2] dma-mapping: introduce DMA_ATTR_CC_DECRYPTED for pre-decrypted memory
  2026-03-05 · Jiri Pirko <jiri@resnulli.us>
• STALE142d [PATCH v2 1/2] dma-mapping: introduce DMA_ATTR_CC_DECRYPTED for pre-decrypted memory
  2026-02-23 · Jiri Pirko <jiri@resnulli.us>
• STALE143d [PATCH 2/5] dma-mapping: introduce DMA_ATTR_CC_DECRYPTED for pre-decrypted memory
  2026-02-09 · Jiri Pirko <jiri@resnulli.us>
• STALE286d LANDED [PATCH] dma-mapping: fix direction in dma_alloc direction traces
  2025-10-01 · Petr Tesarik <hidden>
• STALE296d LANDED: 7 (7M) [PATCH v6 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-09-09 · Leon Romanovsky <leon@kernel.org>
• STALE296d 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>
• STALE296d 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>
• STALE314d REVIEWED: 7 (7M) [PATCH v5 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-09-02 · Leon Romanovsky <leon@kernel.org>
• STALE314d 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>
• STALE314d 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>
• STALE311d [PATCH v4 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-08-19 · Leon Romanovsky <leon@kernel.org>
• STALE311d [PATCH v4 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-08-19 · Leon Romanovsky <leon@kernel.org>
• STALE311d [PATCH v4 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-08-19 · Leon Romanovsky <leon@kernel.org>
• STALE334d [PATCH v3 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE334d [PATCH v3 04/16] dma-mapping: rename trace_dma_*map_page to trace_dma_*map_phys
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE334d [PATCH v3 01/16] dma-mapping: introduce new DMA attribute to indicate MMIO memory
  2025-08-14 · Leon Romanovsky <leon@kernel.org>
• STALE336d [PATCH v2 11/16] dma-mapping: export new dma_*map_phys() interface
  2025-08-14 · Leon Romanovsky <leon@kernel.org>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE143d [PATCH 2/5] dma-mapping: introduce DMA_ATTR_CC_DECRYPTED for pre-decrypted memory
  2026-02-09 · Jiri Pirko <jiri@resnulli.us>
• STALE142d [PATCH v2 1/2] dma-mapping: introduce DMA_ATTR_CC_DECRYPTED for pre-decrypted memory
  2026-02-23 · Jiri Pirko <jiri@resnulli.us>
• STALE126d [PATCH v2 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE126d [PATCH v2 2/8] dma-mapping: handle DMA_ATTR_CPU_CACHE_CLEAN in trace output
  2026-03-11 · Leon Romanovsky <leon@kernel.org>
• STALE118d LANDED [PATCH v3 2/8] dma-mapping: handle DMA_ATTR_CPU_CACHE_CLEAN in trace output
  2026-03-16 · Leon Romanovsky <leon@kernel.org>
• STALE118d LANDED [PATCH v3 3/8] dma-mapping: Clarify valid conditions for CPU cache line overlap
  2026-03-16 · Leon Romanovsky <leon@kernel.org>