This article details the development of a native inotify implementation for FreeBSD 15, addressing significant limitations in the traditional EVFILT_VNODE approach such as race conditions and scalability issues. The decision was driven by real-world customer needs for reliable file monitoring, particularly for workflows involving file uploads via SCP.
Background
FreeBSD has historically relied on the kqueue interface (specifically EVFILT_VNODE) for file event notification, which differs from Linux's inotify. This article discusses the engineering challenges and eventual adoption of a native inotify-like mechanism to improve compatibility and reliability.
- Source
- Lobsters
- Published
- Jul 15, 2026 at 04:48 AM
- Score
- 7.0 / 10