[$] Filtering fanotify events with BPF

Date:
Tue, 06 May 2025 20:14:21 +0000

Description:
Linux systems can have large filesystems; trying to keep up with the
stream of fanotify filesystem-monitoring notifications for them can be a struggle.
Fanotify is one of a few ways to monitor accesses to filesystems provided by the kernel.
Song Liu led a discussion
on how to improve in-kernel filtering of fanotify events to a joint
session of the filesystem and BPF tracks at the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit. He wants to combine the best parts of a few different approaches to efficiently filter filesystem events.

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Link to news story:
https://lwn.net/Articles/1018493/


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