Post Syndicated from original https://lwn.net/Articles/932648/

Amir Goldstein kicked off a session on monitoring mounts at the
2023 Linux Storage, Filesystem,
Memory-Management and BPF Summit. In particular, there are problems
when trying to efficiently monitor “a very large number of mounts in a
mount namespace”; some user-space programs need an accurate view of the
mount tree without having to constantly parse /proc/mounts or the
like. There
are a number of questions to be answered,
including what the API should look like and what entity should be watched
in order to get notifications of new
mount operations.