Active subsystems in linux-fsdevel

100 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.

• filesystems [netfs library] Supported
  55 messages in 7d · last 2026-08-27 13:44 · David Howells et al.
• memory management
  36 messages in 7d · last 2026-08-27 09:21 · Andrew Morton
• tracing
  32 messages in 7d · last 2026-08-27 13:43 · Steven Rostedt et al.
• networking [general]
  24 messages in 7d · last 2026-08-26 19:44 · "David S. Miller" et al.
• memory management - core
  19 messages in 7d · last 2026-08-28 14:41 · Andrew Morton et al.
• cachefiles: fs-cache backend for caching on mounted filesystems Supported
  14 messages in 7d · last 2026-08-27 13:43 · David Howells
• kernel selftest framework
  11 messages in 7d · last 2026-08-27 23:38 · Shuah Khan et al.
• block layer
  8 messages in 7d · last 2026-08-28 15:55 · Jens Axboe
• hfsplus filesystem
  8 messages in 7d · last 2026-08-28 13:38 · Viacheslav Dubeyko et al.
• proc sysctl
  8 messages in 7d · last 2026-08-26 19:44 · Kees Cook et al.
• memory mapping
  8 messages in 7d · last 2026-08-24 14:49 · Andrew Morton et al.
• afs filesystem Supported
  8 messages in 7d · last 2026-08-24 14:46 · David Howells et al.
• rust Supported
  8 messages in 7d · last 2026-08-24 11:20 · Miguel Ojeda
• documentation
  7 messages in 7d · last 2026-08-28 20:54 · Jonathan Corbet
• fuse filesystem [core] Supported
  7 messages in 7d · last 2026-08-27 23:38 · Miklos Szeredi
• proc filesystem
  7 messages in 7d · last 2026-08-26 19:44
• memory management - swap
  7 messages in 7d · last 2026-08-25 13:54 · Andrew Morton et al.
• memory management - thp (transparent huge page)
  7 messages in 7d · last 2026-08-24 14:34 · Andrew Morton et al.
• memory management - userfaultfd
  7 messages in 7d · last 2026-08-24 08:17 · Andrew Morton et al.
• userspace copyin/copyout (uiovec)
  6 messages in 7d · last 2026-08-26 20:47 · Alexander Viro
• nfs, sunrpc, and lockd clients
  6 messages in 7d · last 2026-08-25 22:16 · Trond Myklebust et al.
• common internet file system client (cifs and smb3) Supported
  6 messages in 7d · last 2026-08-24 14:46 · Paulo Alcantara et al.
• x86 architecture (32-bit and 64-bit)
  5 messages in 7d · last 2026-08-26 09:25 · Thomas Gleixner et al.
• ceph distributed file system client (ceph) Supported
  5 messages in 7d · last 2026-08-25 22:16 · Ilya Dryomov et al.
• page cache Supported
  5 messages in 7d · last 2026-08-25 13:54 · Matthew Wilcox et al.
• memory management - page allocator
  4 messages in 7d · last 2026-08-27 09:21 · Andrew Morton et al.
• networking [ipv4/ipv6]
  4 messages in 7d · last 2026-08-26 19:44 · David Ahern et al.
• linux for powerpc (32-bit and 64-bit) Supported
  4 messages in 7d · last 2026-08-26 16:06 · Madhavan Srinivasan
• arm64 port (aarch64 architecture)
  4 messages in 7d · last 2026-08-26 09:25 · Catalin Marinas et al.
• kdump
  4 messages in 7d · last 2026-08-26 09:25 · Andrew Morton et al.
• memory management - mglru (multi-gen lru)
  4 messages in 7d · last 2026-08-25 13:54 · Andrew Morton
• memory management - gup (get user pages)
  4 messages in 7d · last 2026-08-24 14:55 · Andrew Morton et al.
• 9p file system
  4 messages in 7d · last 2026-08-24 14:46 · Eric Van Hensbergen et al.
• memory management - memory policy and migration
  4 messages in 7d · last 2026-08-24 14:34 · Andrew Morton et al.
• tmpfs (shmem filesystem)
  4 messages in 7d · last 2026-08-24 14:26 · Hugh Dickins
• rust [sync]
  4 messages in 7d · last 2026-08-24 11:20 · Boqun Feng et al.
• exec & binfmt api, elf Supported
  3 messages in 7d · last 2026-08-26 15:56 · Kees Cook
• ntfs filesystem
  3 messages in 7d · last 2026-08-26 05:09 · Namjae Jeon et al.
• kernel automounter
  3 messages in 7d · last 2026-08-25 22:17 · Ian Kent
• fsnotify: filesystem notification infrastructure
  3 messages in 7d · last 2026-08-25 22:16 · Jan Kara
• bpf [general] (safe dynamic programs and tools) Supported
  3 messages in 7d · last 2026-08-24 14:45 · Alexei Starovoitov et al.
• memory management - misc
  3 messages in 7d · last 2026-08-24 14:34 · Andrew Morton et al.
• memory management - rust
  3 messages in 7d · last 2026-08-24 11:20 · Alice Ryhl
• control group - block io controller (blkio)
  3 messages in 7d · last 2026-08-23 13:32 · Tejun Heo et al.
• ext4 file system
  2 messages in 7d · last 2026-08-27 07:43 · "Theodore Ts'o"
• filesystems [iomap] Supported
  2 messages in 7d · last 2026-08-26 22:56 · Christian Brauner
• netfilter
  2 messages in 7d · last 2026-08-26 19:43 · Pablo Neira Ayuso et al.
• loongarch
  2 messages in 7d · last 2026-08-26 09:25 · Huacai Chen
• kexec
  2 messages in 7d · last 2026-08-26 09:25 · Andrew Morton et al.
• coda file system
  2 messages in 7d · last 2026-08-25 22:16 · Jan Harkes
• selinux security module Supported
  2 messages in 7d · last 2026-08-25 18:39 · Paul Moore et al.
• security subsystem Supported
  2 messages in 7d · last 2026-08-25 18:39 · Paul Moore et al.
• zswap compressed swap caching
  2 messages in 7d · last 2026-08-25 13:55 · Johannes Weiner et al.
• memory management - reclaim
  2 messages in 7d · last 2026-08-25 13:54 · Andrew Morton et al.
• usb subsystem Supported
  2 messages in 7d · last 2026-08-25 10:46 · Greg Kroah-Hartman
• smbdirect (rdma stream transport with read/write-offload, ms-smbd)
  2 messages in 7d · last 2026-08-24 14:45 · Steve French et al.
• namespaces:
  2 messages in 7d · last 2026-08-24 12:08 · Christian Brauner
• rust [alloc]
  2 messages in 7d · last 2026-08-24 11:20 · Danilo Krummrich
• driver core, kobjects, debugfs and sysfs Supported
  2 messages in 7d · last 2026-08-24 11:19 · Greg Kroah-Hartman et al.
• gfs2 file system Supported
  2 messages in 7d · last 2026-08-23 16:07 · Andreas Gruenbacher
• hugetlb subsystem
  2 messages in 7d · last 2026-08-23 12:18 · Muchun Song et al.
• virtio file system Supported
  1 message in 7d · last 2026-08-27 23:38 · German Maglione et al.
• hfs filesystem
  1 message in 7d · last 2026-08-26 22:56 · Viacheslav Dubeyko et al.
• parallel port subsystem
  1 message in 7d · last 2026-08-26 19:44 · Sudip Mukherjee et al.
• ethernet bridge
  1 message in 7d · last 2026-08-26 19:44 · Nikolay Aleksandrov et al.
• ipvs
  1 message in 7d · last 2026-08-26 19:43 · Simon Horman et al.
• rds - reliable datagram sockets Supported
  1 message in 7d · last 2026-08-26 19:43 · Allison Henderson
• shared memory communications (smc) sockets Supported
  1 message in 7d · last 2026-08-26 19:43 · D. Wythe et al.
• networking drivers
  1 message in 7d · last 2026-08-26 19:43 · Andrew Lunn et al.
• vrf
  1 message in 7d · last 2026-08-26 19:43 · David Ahern
• sctp protocol
  1 message in 7d · last 2026-08-26 19:43 · Marcelo Ricardo Leitner et al.
• networking [mptcp]
  1 message in 7d · last 2026-08-26 19:43 · Matthieu Baerts et al.
• vm sockets (af_vsock)
  1 message in 7d · last 2026-08-26 19:43 · Stefano Garzarella
• ieee 802.15.4 subsystem
  1 message in 7d · last 2026-08-26 19:43 · Alexander Aring et al.
• networking [ipsec]
  1 message in 7d · last 2026-08-26 19:43 · Steffen Klassert et al.
• networking [unix sockets]
  1 message in 7d · last 2026-08-26 19:43 · Kuniyuki Iwashima
• cell broadband engine architecture Orphan
  1 message in 7d · last 2026-08-26 16:06
• spu file system Orphan
  1 message in 7d · last 2026-08-26 16:06
• configfs Supported
  1 message in 7d · last 2026-08-26 10:47 · Breno Leitao
• directory notification (dnotify)
  1 message in 7d · last 2026-08-25 22:16 · Jan Kara
• vfat/fat/msdos filesystem
  1 message in 7d · last 2026-08-25 12:11 · OGAWA Hirofumi
• can network layer
  1 message in 7d · last 2026-08-25 09:54 · Oliver Hartkopp et al.
• tc subsystem
  1 message in 7d · last 2026-08-25 09:54 · Jamal Hadi Salim et al.
• aio Supported
  1 message in 7d · last 2026-08-25 09:53 · Benjamin LaHaise
• vsprintf
  1 message in 7d · last 2026-08-25 09:53 · Petr Mladek et al.
• kernel nfsd, sunrpc, and lockd servers Supported
  1 message in 7d · last 2026-08-24 16:10 · Chuck Lever et al.
• memory hot(un)plug
  1 message in 7d · last 2026-08-24 14:49 · David Hildenbrand et al.
• kernel virtual machine for s390 (kvm/s390) Supported
  1 message in 7d · last 2026-08-24 14:39 · Christian Borntraeger et al.
• s390 architecture Supported
  1 message in 7d · last 2026-08-24 14:39 · Heiko Carstens et al.
• memory management - ksm (kernel samepage merging)
  1 message in 7d · last 2026-08-24 14:34 · Andrew Morton et al.
• hwpoison memory failure handling
  1 message in 7d · last 2026-08-24 14:27 · Miaohe Lin
• memory management - rmap (reverse mapping)
  1 message in 7d · last 2026-08-24 14:16 · Andrew Morton et al.
• memory mapping - madvise (memory advice)
  1 message in 7d · last 2026-08-24 14:06 · Andrew Morton et al.
• smack security module
  1 message in 7d · last 2026-08-24 13:28 · Casey Schaufler
• bpf [selftests] (test runners & infrastructure)
  1 message in 7d · last 2026-08-24 13:28 · Andrii Nakryiko et al.
• scheduler
  1 message in 7d · last 2026-08-24 12:08 · Ingo Molnar et al.
• android drivers Supported
  1 message in 7d · last 2026-08-24 11:20 · Greg Kroah-Hartman et al.
• auxiliary bus driver Supported
  1 message in 7d · last 2026-08-24 11:19 · Greg Kroah-Hartman et al.
• block layer device driver api [rust] Supported
  1 message in 7d · last 2026-08-24 11:19 · Andreas Hindborg
• credentials Supported
  1 message in 7d · last 2026-08-24 11:19 · Paul Moore