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ftrace: backport relevant fprobe fixes from 6.4 and 6.5

Viktor Malik requested to merge vmalikrh/centos-stream-9:fprobe-fixes into main

Merge Request Required Information

Summary of Changes

The BPF subsystem contains a probe multi-attachment feature (so-called kprobe.multi) which is based on the fprobe tracing subsystem. The necessary parts of fprobe were backported as a part of BPF 5.18 and 5.19 rebases.

This backports several fixes for the parts of fprobe used by BPF which were introduced in upstream versions 6.4 and 6.5.

Approved Development Ticket

JIRA: https://issues.redhat.com/browse/RHEL-2373

Signed-off-by: Viktor Malik vmalik@redhat.com

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