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 REVIEWED: 9 (9M) [PATCH v5 0/8] mm/slab: introduce kfree_rcu_nolock() and improve slub_kunit coverage
  2026-07-29 08:21 · 1 reply in 7d · "Harry Yoo (Oracle)" <harry@kernel.org>

Recent patches

Most-recent 22 patches in this subsystem on linux-rt-devel, ordered by date desc.

• HOTtoday [PATCH v5 6/8] mm/slab: introduce struct kvfree_rcu_head for kvfree_rcu batching
  2026-07-29 · "Harry Yoo (Oracle)" <harry@kernel.org>
• COOLING5d [PATCH slab/for-next v4 6/8] mm/slab: introduce struct kvfree_rcu_head for kvfree_rcu batching
  2026-07-20 · "Harry Yoo (Oracle)" <harry@kernel.org>
• COOLING7d [PATCH v2 3/4] mm/migrate: add tracepoint for folios unmapped during migration
  2026-07-07 · Wandun Chen <hidden>
• COOLING7d IN LINUX-NEXT [PATCH v5 16/18] mm: remove the __GFP_NO_OBJ_EXT flag
  2026-07-03 · Brendan Jackman <jackmanb@google.com>
• COLD26d [PATCH v4 16/18] mm: remove the __GFP_NO_OBJ_EXT flag
  2026-07-02 · Brendan Jackman <jackmanb@google.com>
• COLD21d [RFC PATCH 2/3] mm/compaction: add per-folio isolation tracepoint
  2026-06-04 · Wandun Chen <hidden>
• DORMANTno replies [PATCH v2 1/1] ring-buffer: Use a housekeeping CPU to wake up waiters
  2026-01-08 · Petr Tesarik <hidden>
• STALE201d [PATCH] ring-buffer: Use a housekeeping CPU to wake up waiters
  2026-01-06 · Petr Tesarik <hidden>
• STALE408d Re: BUG: scheduling while atomic with PREEMPT_RT=y and bpf selftests
  2025-06-15 · Bert Karwatzki <hidden>
• STALE203d [RFC PATCH 2/2] trace: Use rcu_read_lock() instead preempt_disable()
  2025-06-13 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE408d Re: BUG: scheduling while atomic with PREEMPT_RT=y and bpf selftests
  2025-06-08 · Bert Karwatzki <hidden>
• STALE408d Re: BUG: scheduling while atomic with PREEMPT_RT=y and bpf selftests
  2025-06-05 · Bert Karwatzki <hidden>
• STALE499d LANDED: 17 (17M) [PATCH v4 9/9] tracing: Use preempt_model_str().
  2025-03-14 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE511d REVIEWED: 7 (6M) [PATCH rcu 06/11] osnoise: provide quiescent states
  2025-02-25 · Boqun Feng <hidden>
• STALE531d REVIEWED: 17 (17M) [PATCH v3 9/9] tracing: Use preempt_model_str().
  2025-02-12 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE533d [PATCH v2 9/9] tracing: Use preempt_model_str().
  2025-02-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• DORMANTno replies [ANNOUNCE] v6.13-rc6-rt3
  2025-01-09 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE566d [RFC PATCH] preempt: Add a generic function to return the preemption string.
  2024-12-06 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE602d [PATCH AUTOSEL 6.11 11/33] ring-buffer: Limit time with disabled interrupts in rb_check_pages()
  2024-12-04 · Sasha Levin <sashal@kernel.org>
• STALE596d [PATCH AUTOSEL 6.12 11/36] ring-buffer: Limit time with disabled interrupts in rb_check_pages()
  2024-12-04 · Sasha Levin <sashal@kernel.org>
• DORMANTno replies [ANNOUNCE] v6.12-rc4-rt6
  2024-10-25 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• DORMANTno replies [ANNOUNCE] v6.12-rc2-rt4
  2024-10-10 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>

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.

• DORMANTno replies [PATCH v2 1/1] ring-buffer: Use a housekeeping CPU to wake up waiters
  2026-01-08 · Petr Tesarik <hidden>
• COLD21d [RFC PATCH 2/3] mm/compaction: add per-folio isolation tracepoint
  2026-06-04 · Wandun Chen <hidden>