* [for-next][PATCH 1/5] tracing: Fix function timing profiler to initialize hashtable
[not found] <20241001214241.688116616@goodmis.org>
@ 2024-10-01 21:42 ` Steven Rostedt
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From: Steven Rostedt @ 2024-10-01 21:42 UTC (permalink / raw)
To: linux-kernel
Cc: Masami Hiramatsu, Mark Rutland, Mathieu Desnoyers, Andrew Morton,
stable
From: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Since the new fgraph requires to initialize fgraph_ops.ops.func_hash before
calling register_ftrace_graph(), initialize it with default (tracing all
functions) parameter.
Cc: stable@vger.kernel.org
Fixes: 5fccc7552ccb ("ftrace: Add subops logic to allow one ops to manage many")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
kernel/trace/ftrace.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 4c28dd177ca6..d2dd71d04b8a 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -883,6 +883,10 @@ static void profile_graph_return(struct ftrace_graph_ret *trace,
}
static struct fgraph_ops fprofiler_ops = {
+ .ops = {
+ .flags = FTRACE_OPS_FL_INITIALIZED,
+ INIT_OPS_HASH(fprofiler_ops.ops)
+ },
.entryfunc = &profile_graph_entry,
.retfunc = &profile_graph_return,
};
--
2.45.2
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