Messages in this thread | | | From | Namhyung Kim <> | Subject | [PATCH 0/4] ftrace: Add 'function-fork' trace option (v2) | Date | Mon, 17 Apr 2017 11:44:26 +0900 |
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Hello,
This patchset add 'function-fork' option to function tracer which makes pid filter to be inherited like 'event-fork' does. During the test, I found a bug of pid filter on an instance directory. The patch 1 fixes it and maybe it should go to the stable tree.
The function-fork option is disabled by default as event-fork does, but we might consider changing the default since it seems to be more natural from an user's perspective IMHO.
v2 changes) * use ftrace_clear_pids() (Steve) * add Ack from Masami
The code is also available at 'ftrace/function-fork-v2' branch on
git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
Thanks, Namhyung
Namhyung Kim (4): ftrace: Fix function pid filter on instances ftrace: Add 'function-fork' trace option selftests: ftrace: Add -l/--logdir option selftests: ftrace: Add a testcase for function PID filter
kernel/trace/ftrace.c | 46 ++++++++++ kernel/trace/trace.c | 6 +- kernel/trace/trace.h | 8 +- tools/testing/selftests/ftrace/ftracetest | 5 ++ .../ftrace/test.d/ftrace/func-filter-pid.tc | 98 ++++++++++++++++++++++ 5 files changed, 161 insertions(+), 2 deletions(-) create mode 100644 tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
-- 2.12.2
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