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| author | Aaron Tomlin <atomlin@atomlin.com> | 2026-01-05 09:29:38 -0500 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2026-01-26 17:44:15 -0500 |
| commit | 729757b96a662d87e334fe8b837707800d8fd551 (patch) | |
| tree | d1013f789dbce6387a91fad638463a9ae14d6b7b /tools/perf/scripts/python/stackcollapse.py | |
| parent | e5136678b1c861ed7d0c985c1acdecd37f949937 (diff) | |
| download | linux-729757b96a662d87e334fe8b837707800d8fd551.tar.gz linux-729757b96a662d87e334fe8b837707800d8fd551.zip | |
tracing: Add show_event_filters to expose active event filters
Currently, to audit active Ftrace event filters, userspace must
recursively traverse the events/ directory and read each individual
filter file. This is inefficient for monitoring tools and debugging.
Introduce "show_event_filters" at the trace root directory. This file
displays all events that currently have a filter applied, alongside the
actual filter string, in a consolidated system:event [tab] filter
format.
The implementation reuses the existing trace_event_file iterators to
ensure atomic traversal of the event list and utilises guard(rcu)() for
automatic, scope-based protection when accessing volatile filter
strings.
Link: https://patch.msgid.link/20260105142939.2655342-2-atomlin@atomlin.com
Signed-off-by: Aaron Tomlin <atomlin@atomlin.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions