Messages in this thread | | | Date | Wed, 13 Oct 2021 16:51:11 -0400 | From | Steven Rostedt <> | Subject | [PATCH v2 0/2] tracing: Fix removal of eprobes and add test |
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When doing the following:
# echo 'e:hrstate timer/hrtimer_cancel state=+0x38($hrtimer):u8' >> dynamic_events
# echo '-:hrstate timer/hrtimer_cancel state=+0x38($hrtimer):u8' >> dynamic_events
It errors out with -ENOENT. This is because the "match" function does not take into account the "timer/hrtimer_cancel" part. Fix it and also make it work more genericly like kprobes and uprobes.
v1 at: https://lore.kernel.org/all/20211013234206.37dd18ffcc2a2cbf4493f125@kernel.org/
Changes since v1: - Instead of just fixing the missing system/event, have it be more like kprobes and uprobes.
Steven Rostedt (VMware) (2): tracing: Fix event probe removal from dynamic events selftests/ftrace: Update test for more eprobe removal process
---- kernel/trace/trace_eprobe.c | 54 ++++++++++++++++++++-- .../ftrace/test.d/dynevent/add_remove_eprobe.tc | 54 +++++++++++++++++++++- 2 files changed, 103 insertions(+), 5 deletions(-)
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