Active subsystems in linux-s390

63 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.

• s390 architecture Supported
  75 messages in 7d · last 2026-10-06 15:46 · Heiko Carstens et al.
• memory management
  27 messages in 7d · last 2026-10-03 16:46 · Andrew Morton
• memory mapping
  17 messages in 7d · last 2026-10-03 16:45 · Andrew Morton et al.
• memory management - core
  17 messages in 7d · last 2026-10-03 16:45 · Andrew Morton et al.
• s390 pci subsystem Supported
  12 messages in 7d · last 2026-10-05 15:47 · Niklas Schnelle et al.
• s390 zcrypt and pkey driver and ap bus Supported
  10 messages in 7d · last 2026-10-06 15:46 · Harald Freudenberger et al.
• arm64 port (aarch64 architecture)
  6 messages in 7d · last 2026-10-03 16:43 · Catalin Marinas et al.
• scheduler
  6 messages in 7d · last 2026-10-03 16:42 · Ingo Molnar et al.
• networking [general]
  5 messages in 7d · last 2026-10-06 07:36 · "David S. Miller" et al.
• shared memory communications (smc) sockets Supported
  5 messages in 7d · last 2026-10-06 07:36 · D. Wythe et al.
• kernel virtual machine for s390 (kvm/s390) Supported
  5 messages in 7d · last 2026-10-03 16:42 · Christian Borntraeger et al.
• memory management - thp (transparent huge page)
  4 messages in 7d · last 2026-10-03 16:46 · Andrew Morton et al.
• memory mapping - madvise (memory advice)
  4 messages in 7d · last 2026-10-03 16:44 · Andrew Morton et al.
• linux for powerpc (32-bit and 64-bit) Supported
  4 messages in 7d · last 2026-10-03 16:42 · Madhavan Srinivasan
• x86 architecture (32-bit and 64-bit)
  4 messages in 7d · last 2026-10-03 16:40 · Thomas Gleixner et al.
• loongarch
  4 messages in 7d · last 2026-10-02 10:13 · Huacai Chen
• memory management - migration
  3 messages in 7d · last 2026-10-03 16:45 · Andrew Morton et al.
• memory management - reclaim
  3 messages in 7d · last 2026-10-03 16:45 · Andrew Morton et al.
• memory management - mglru (multi-gen lru)
  3 messages in 7d · last 2026-10-03 16:45 · Andrew Morton
• memory management - userfaultfd
  3 messages in 7d · last 2026-10-03 16:44 · Andrew Morton et al.
• drm drivers
  3 messages in 7d · last 2026-10-03 16:43 · David Airlie et al.
• drm drivers and misc gpu patches
  3 messages in 7d · last 2026-10-03 16:43 · Maarten Lankhorst et al.
• risc-v architecture Supported
  3 messages in 7d · last 2026-10-03 16:42 · Paul Walmsley et al.
• generic include/asm header files
  3 messages in 7d · last 2026-10-03 16:42 · Arnd Bergmann
• s390 crypto modules, prng driver, arch random Supported
  2 messages in 7d · last 2026-10-05 14:14 · Harald Freudenberger et al.
• kernel virtual machine for arm64 (kvm/arm64)
  2 messages in 7d · last 2026-10-03 16:43 · Marc Zyngier et al.
• sparc + ultrasparc (sparc/sparc64)
  2 messages in 7d · last 2026-10-03 16:42 · "David S. Miller" et al.
• memory management - gup (get user pages)
  2 messages in 7d · last 2026-10-03 16:42 · Andrew Morton et al.
• memory management - rmap (reverse mapping)
  2 messages in 7d · last 2026-10-03 16:42 · Andrew Morton et al.
• mmu gather and tlb invalidation
  2 messages in 7d · last 2026-10-03 16:42 · Will Deacon et al.
• hugetlb subsystem
  2 messages in 7d · last 2026-10-03 16:42 · Muchun Song et al.
• documentation
  2 messages in 7d · last 2026-10-03 16:35 · Jonathan Corbet
• x86 entry code
  2 messages in 7d · last 2026-10-02 10:13 · Andy Lutomirski
• x86 vdso
  2 messages in 7d · last 2026-10-02 10:13 · Andy Lutomirski
• vfio driver
  1 message in 7d · last 2026-10-05 15:47 · Alex Williamson
• s390 vfio-pci driver Supported
  1 message in 7d · last 2026-10-05 15:47 · Matthew Rosato et al.
• fuse filesystem [core] Supported
  1 message in 7d · last 2026-10-03 16:46 · Miklos Szeredi
• memory management - ksm (kernel samepage merging)
  1 message in 7d · last 2026-10-03 16:44 · Andrew Morton et al.
• kernel virtual machine for risc-v (kvm/riscv)
  1 message in 7d · last 2026-10-03 16:42 · Anup Patel
• proc filesystem
  1 message in 7d · last 2026-10-03 16:42
• memory management - numa placement
  1 message in 7d · last 2026-10-03 16:42 · Andrew Morton et al.
• memory management - swap
  1 message in 7d · last 2026-10-03 16:42 · Andrew Morton et al.
• page cache Supported
  1 message in 7d · last 2026-10-03 16:42 · Matthew Wilcox et al.
• uprobes
  1 message in 7d · last 2026-10-03 16:40 · Masami Hiramatsu et al.
• hsi subsystem
  1 message in 7d · last 2026-10-03 16:39 · Sebastian Reichel
• framebuffer core Odd Fixes
  1 message in 7d · last 2026-10-03 16:39 · Simona Vetter
• arc framebuffer driver
  1 message in 7d · last 2026-10-03 16:39 · Jaya Kumar
• framebuffer layer
  1 message in 7d · last 2026-10-03 16:39 · Helge Deller
• scsi sg driver
  1 message in 7d · last 2026-10-03 16:39 · Doug Gilbert
• scsi subsystem
  1 message in 7d · last 2026-10-03 16:39 · "James E.J. Bottomley" et al.
• bpf [general] (safe dynamic programs and tools) Supported
  1 message in 7d · last 2026-10-03 16:37 · Alexei Starovoitov et al.
• sound
  1 message in 7d · last 2026-10-03 16:37 · Jaroslav Kysela et al.
• selinux security module Supported
  1 message in 7d · last 2026-10-03 16:37 · Paul Moore et al.
• infiniband subsystem Supported
  1 message in 7d · last 2026-10-03 16:36 · Jason Gunthorpe et al.
• usb subsystem Supported
  1 message in 7d · last 2026-10-03 16:36 · Greg Kroah-Hartman
• kernel virtual machine (kvm) Supported
  1 message in 7d · last 2026-10-02 19:49 · Paolo Bonzini
• mips
  1 message in 7d · last 2026-10-01 19:31 · Thomas Bogendoerfer
• mips/loongson64 architecture
  1 message in 7d · last 2026-10-01 19:31 · Huacai Chen et al.
• driver core, kobjects, debugfs and sysfs Supported
  1 message in 7d · last 2026-10-01 19:30 · Greg Kroah-Hartman et al.
• generic architecture topology
  1 message in 7d · last 2026-10-01 19:30 · Sudeep Holla
• s390 common i/o layer Supported
  1 message in 7d · last 2026-10-01 10:33 · Vineeth Vijayan et al.
• bpf jit for s390 Supported
  1 message in 7d · last 2026-10-01 10:33 · Ilya Leoshkevich et al.
• generic vdso library
  1 message in 7d · last 2026-10-01 10:21 · Andy Lutomirski et al.