Active subsystems in linux-trace-kernel

92 subsystems with patch activity in the last 7 days, busiest first. Each links to its own dashboard: recent patches, active threads and reviewers for the paths that subsystem claims in MAINTAINERS.

• tracing
  63 messages in 7d · last 2026-10-27 15:44 · Steven Rostedt et al.
• bpf [general] (safe dynamic programs and tools) Supported
  20 messages in 7d · last 2026-10-27 11:39 · Alexei Starovoitov et al.
• memory management
  16 messages in 7d · last 2026-10-27 09:40 · Andrew Morton
• kernel selftest framework
  15 messages in 7d · last 2026-10-27 11:39 · Shuah Khan et al.
• x86 platform drivers
  15 messages in 7d · last 2026-10-26 18:35 · Hans de Goede et al.
• documentation
  14 messages in 7d · last 2026-10-27 11:39 · Jonathan Corbet
• security subsystem Supported
  13 messages in 7d · last 2026-10-27 11:39 · Paul Moore et al.
• x86 architecture (32-bit and 64-bit)
  12 messages in 7d · last 2026-10-27 15:44 · Thomas Gleixner et al.
• selinux security module Supported
  12 messages in 7d · last 2026-10-27 11:39 · Paul Moore et al.
• smack security module
  10 messages in 7d · last 2026-10-27 11:39 · Casey Schaufler
• hid core layer
  10 messages in 7d · last 2026-10-24 00:52 · Jiri Kosina et al.
• bpf [selftests] (test runners & infrastructure)
  8 messages in 7d · last 2026-10-27 11:39 · Andrii Nakryiko et al.
• overlay filesystem Supported
  8 messages in 7d · last 2026-10-27 11:39 · Miklos Szeredi et al.
• runtime verification (rv)
  8 messages in 7d · last 2026-10-26 13:06 · Steven Rostedt et al.
• tracing os noise / latency tracers
  8 messages in 7d · last 2026-10-24 01:56 · Steven Rostedt
• memory management - page allocator
  8 messages in 7d · last 2026-10-22 17:38 · Andrew Morton et al.
• networking [general]
  7 messages in 7d · last 2026-10-27 15:44 · "David S. Miller" et al.
• kernel nfsd, sunrpc, and lockd servers Supported
  7 messages in 7d · last 2026-10-27 11:39 · Chuck Lever et al.
• extended verification module (evm) Supported
  7 messages in 7d · last 2026-10-27 11:39 · Mimi Zohar et al.
• integrity measurement architecture (ima) Supported
  7 messages in 7d · last 2026-10-27 11:39 · Mimi Zohar et al.
• ecrypt file system Odd Fixes
  7 messages in 7d · last 2026-10-27 11:38 · Tyler Hicks
• kernel smb3 server (ksmbd)
  7 messages in 7d · last 2026-10-27 11:38 · Namjae Jeon et al.
• memory management - core
  5 messages in 7d · last 2026-10-26 21:52 · Andrew Morton et al.
• bpf [core]
  5 messages in 7d · last 2026-10-26 15:50 · Alexei Starovoitov et al.
• scheduler
  5 messages in 7d · last 2026-10-23 01:11 · Ingo Molnar et al.
• generic entry code
  5 messages in 7d · last 2026-10-22 05:18 · Thomas Gleixner et al.
• landlock security module Supported
  4 messages in 7d · last 2026-10-27 11:39 · Mickaël Salaün
• bpf [security & lsm] (security audit and enforcement using bpf)
  4 messages in 7d · last 2026-10-27 11:39 · KP Singh et al.
• openrisc architecture
  4 messages in 7d · last 2026-10-26 20:13 · Jonas Bonn et al.
• bpf [library] (libbpf)
  4 messages in 7d · last 2026-10-26 15:51 · Andrii Nakryiko et al.
• arm64 port (aarch64 architecture)
  4 messages in 7d · last 2026-10-23 01:11 · Catalin Marinas et al.
• memory management - allocation profiling (alloc tag)
  4 messages in 7d · last 2026-10-22 17:38 · Suren Baghdasaryan
• uprobes
  4 messages in 7d · last 2026-10-22 01:58 · Masami Hiramatsu et al.
• xdp (express data path) Supported
  3 messages in 7d · last 2026-10-27 15:44 · Alexei Starovoitov et al.
• userspace copyin/copyout (uiovec)
  3 messages in 7d · last 2026-10-26 21:52 · Alexander Viro
• generic include/asm header files
  2 messages in 7d · last 2026-10-27 18:32 · Arnd Bergmann
• scsi subsystem
  2 messages in 7d · last 2026-10-27 15:44 · "James E.J. Bottomley" et al.
• exfat file system
  2 messages in 7d · last 2026-10-27 11:38 · Namjae Jeon et al.
• vfat/fat/msdos filesystem
  2 messages in 7d · last 2026-10-27 11:38 · OGAWA Hirofumi
• bpf [tracing]
  2 messages in 7d · last 2026-10-27 11:38 · Song Liu
• zoned loop device
  2 messages in 7d · last 2026-10-27 11:38 · Damien Le Moal
• block layer
  2 messages in 7d · last 2026-10-27 11:38 · Jens Axboe
• cachefiles: fs-cache backend for caching on mounted filesystems Supported
  2 messages in 7d · last 2026-10-27 11:38 · David Howells
• btrfs file system
  2 messages in 7d · last 2026-10-27 11:38 · David Sterba
• driver core, kobjects, debugfs and sysfs Supported
  2 messages in 7d · last 2026-10-27 11:38 · Greg Kroah-Hartman et al.
• filesystems (vfs and infrastructure)
  2 messages in 7d · last 2026-10-27 11:38 · Alexander Viro et al.
• tmpfs (shmem filesystem)
  2 messages in 7d · last 2026-10-27 09:40 · Hugh Dickins
• memory management - misc
  2 messages in 7d · last 2026-10-22 17:38 · Andrew Morton et al.
• risc-v architecture Supported
  2 messages in 7d · last 2026-10-22 08:20 · Paul Walmsley et al.
• locking primitives
  2 messages in 7d · last 2026-10-22 05:17 · Peter Zijlstra et al.
• exec & binfmt api, elf Supported
  2 messages in 7d · last 2026-10-22 01:58 · Kees Cook
• memory mapping
  2 messages in 7d · last 2026-10-22 01:58 · Andrew Morton et al.
• function hooks (ftrace)
  2 messages in 7d · last 2026-10-21 17:44 · Steven Rostedt et al.
• dma buffer sharing framework
  1 message in 7d · last 2026-10-27 15:44 · Sumit Semwal et al.
• drm drivers
  1 message in 7d · last 2026-10-27 15:44 · David Airlie et al.
• radeon and amdgpu drm drivers Supported
  1 message in 7d · last 2026-10-27 15:44 · Alex Deucher et al.
• drm gpu scheduler Supported
  1 message in 7d · last 2026-10-27 15:44 · Matthew Brost et al.
• drm drivers and misc gpu patches
  1 message in 7d · last 2026-10-27 15:44 · Maarten Lankhorst et al.
• universal flash storage host controller driver Supported
  1 message in 7d · last 2026-10-27 15:44
• devlink Supported
  1 message in 7d · last 2026-10-27 15:44 · Jiri Pirko
• device frequency (devfreq)
  1 message in 7d · last 2026-10-27 15:44 · MyungJoo Ham et al.
• openvswitch
  1 message in 7d · last 2026-10-27 15:44 · Aaron Conole et al.
• sctp protocol
  1 message in 7d · last 2026-10-27 15:44 · Marcelo Ricardo Leitner et al.
• tipc network layer
  1 message in 7d · last 2026-10-27 15:44 · Jon Maloy et al.
• habanalabs pci driver Supported
  1 message in 7d · last 2026-10-27 15:44 · Koby Elbaz et al.
• drm compute accelerators drivers and framework
  1 message in 7d · last 2026-10-27 15:44 · Oded Gabbay
• apparmor security module Supported
  1 message in 7d · last 2026-10-27 11:38 · John Johansen et al.
• tomoyo security module
  1 message in 7d · last 2026-10-27 11:38 · Kentaro Takeda et al.
• capabilities Supported
  1 message in 7d · last 2026-10-27 11:38 · Serge Hallyn
• ntfs filesystem
  1 message in 7d · last 2026-10-27 11:38 · Namjae Jeon et al.
• nios2 architecture Supported
  1 message in 7d · last 2026-10-26 23:41 · Dinh Nguyen et al.
• tensilica xtensa port (xtensa)
  1 message in 7d · last 2026-10-26 23:41 · Chris Zankel et al.
• intel in field scan (ifs) device
  1 message in 7d · last 2026-10-26 18:35 · Tony Luck
• page cache Supported
  1 message in 7d · last 2026-10-26 06:19 · Matthew Wilcox et al.
• real-time linux analysis (rtla) tools
  1 message in 7d · last 2026-10-26 06:19 · Steven Rostedt et al.
• input (keyboard, mouse, joystick, touchscreen) drivers
  1 message in 7d · last 2026-10-24 00:51 · Dmitry Torokhov
• open firmware and flattened device tree bindings
  1 message in 7d · last 2026-10-24 00:51 · Rob Herring et al.
• arm port Odd Fixes
  1 message in 7d · last 2026-10-23 06:50 · Russell King
• arm/footbridge architecture
  1 message in 7d · last 2026-10-23 06:50 · Russell King
• arm/riscpc architecture
  1 message in 7d · last 2026-10-23 06:50 · Russell King
• compiler attributes
  1 message in 7d · last 2026-10-23 01:12 · Miguel Ojeda
• c-sky architecture Supported
  1 message in 7d · last 2026-10-23 01:11 · Guo Ren
• mips
  1 message in 7d · last 2026-10-23 01:11 · Thomas Bogendoerfer
• linux for powerpc (32-bit and 64-bit) Supported
  1 message in 7d · last 2026-10-23 01:11 · Madhavan Srinivasan
• superh
  1 message in 7d · last 2026-10-23 01:11 · Yoshinori Sato et al.
• slab allocator
  1 message in 7d · last 2026-10-22 17:38 · Vlastimil Babka et al.
• code tagging
  1 message in 7d · last 2026-10-22 17:38 · Suren Baghdasaryan et al.
• loongarch
  1 message in 7d · last 2026-10-22 08:20 · Huacai Chen
• context tracking
  1 message in 7d · last 2026-10-22 05:17 · Frederic Weisbecker et al.
• memory mapping - locking
  1 message in 7d · last 2026-10-22 01:57 · Andrew Morton et al.
• hugetlb subsystem
  1 message in 7d · last 2026-10-21 02:41 · Muchun Song et al.
• memory management - oom killer
  1 message in 7d · last 2026-10-21 02:40 · Michal Hocko