diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2025-11-14 14:22:32 -0500 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-11-14 14:30:55 -0500 |
| commit | 5abb6ccb58f0626a0b7577908bcb698b18812eed (patch) | |
| tree | 32738409767fc34594a2ef1639f4f207ab4c93df /kernel/trace/fgraph.c | |
| parent | 4132886e1b74d031a1de8f0e9bac44056cf57304 (diff) | |
tracing: Have function graph tracer option sleep-time be per instance
Currently the option to have function graph tracer to ignore time spent
when a task is sleeping is global when the interface is per-instance.
Changing the value in one instance will affect the results of another
instance that is also running the function graph tracer. This can lead to
confusing results.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://patch.msgid.link/20251114192318.950255167@kernel.org
Fixes: c132be2c4fcc1 ("function_graph: Have the instances use their own ftrace_ops for filtering")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/fgraph.c')
| -rw-r--r-- | kernel/trace/fgraph.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/kernel/trace/fgraph.c b/kernel/trace/fgraph.c index 484ad7a18463..7fb9b169d6d4 100644 --- a/kernel/trace/fgraph.c +++ b/kernel/trace/fgraph.c @@ -498,9 +498,6 @@ found: return get_data_type_data(current, offset); } -/* Both enabled by default (can be cleared by function_graph tracer flags */ -bool fgraph_sleep_time = true; - #ifdef CONFIG_DYNAMIC_FTRACE /* * archs can override this function if they must do something @@ -1023,11 +1020,6 @@ void fgraph_init_ops(struct ftrace_ops *dst_ops, #endif } -void ftrace_graph_sleep_time_control(bool enable) -{ - fgraph_sleep_time = enable; -} - /* * Simply points to ftrace_stub, but with the proper protocol. * Defined by the linker script in linux/vmlinux.lds.h @@ -1098,7 +1090,7 @@ ftrace_graph_probe_sched_switch(void *ignore, bool preempt, * Does the user want to count the time a function was asleep. * If so, do not update the time stamps. */ - if (fgraph_sleep_time) + if (!fgraph_no_sleep_time) return; timestamp = trace_clock_local(); |