ftrace: backport relevant fprobe fixes from 6.4 and 6.5
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