~/talk

Zonefs: Features Roadmap

on YouTube 25m
Talkat Linux Plumbers Conference 2022 · 2022-09-12..09-14· [linux-and-operating-systems]

speaker

name:Damien Le Moal
links:none on file

resources

video:https://youtu.be/6CYuFHaP2Cw
slides:none on file

summary

Zonefs exposes each ZNS zone as an append‑only file and already fixes a read‑ahead infinite loop and enforces device limits via sysfs. Planned changes include changing inode locking so finish doesn’t stall concurrent reads, replacing per‑zone inodes with a report_zones cache to drop memory from ~128 bytes to about 16 bytes per zone, enabling async zone append (io_uring large CQ support) and adding buffered writes via controlled pagecache copies to remove the strict O_DIRECT-only path.

AI-written summary · about

chapters (7)

  1. 0:00Introduction to Zonefs
  2. 1:50Zonefs basics and limitations
  3. 3:58Recent updates and fixes
  4. 7:50Future improvements planned
  5. 16:01Asynchronous I/O and append support
  6. 18:52Buffered writes and O_DIRECT
  7. 21:43Q&A and closing

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