Active subsystems in linux-ext4

11 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.

• ext4 file system
  41 messages in 7d · last 2026-09-06 10:48 · "Theodore Ts'o"
• tracing
  3 messages in 7d · last 2026-09-03 12:47 · Steven Rostedt et al.
• memory management
  2 messages in 7d · last 2026-09-04 19:31 · Andrew Morton
• page cache Supported
  2 messages in 7d · last 2026-09-04 19:31 · Matthew Wilcox et al.
• memory management - core
  1 message in 7d · last 2026-09-03 11:57 · Andrew Morton et al.
• tmpfs (shmem filesystem)
  1 message in 7d · last 2026-09-03 11:57 · Hugh Dickins
• documentation
  1 message in 7d · last 2026-09-02 14:34 · Jonathan Corbet
• vsprintf
  1 message in 7d · last 2026-09-02 07:47 · Petr Mladek et al.
• aio Supported
  1 message in 7d · last 2026-09-02 07:47 · Benjamin LaHaise
• filesystems [idmapped mounts]
  1 message in 7d · last 2026-09-02 07:47 · Christian Brauner et al.
• journalling layer for block devices (jbd2)
  1 message in 7d · last 2026-09-02 07:03 · "Theodore Ts'o" et al.