cgroup v2 unRAID

This is a (very) simple C program designed to clean up cgroups v2 on unRAID. It operates in two modes:

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Daemon mode:

In this mode, the program runs as a daemon and monitors the files at /sys/fs/cgroup/<PID>/cgroup.events. It watches for any changes in the populated status. If the status changes from 1 to 0, the corresponding directory is removed.

Usage: cgroup2-unraid --daemon

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Non-Daemon mode:

If called without the --daemon option, the program scans all /sys/fs/cgroup/<PID>/cgroup.events files. It identifies any directories where populated is 0 and removes those directories.

Usage: cgroup2-unraid

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Compilation steps:

gc -o cgroup2-unraid cgroup2-unraid.c