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Message-Id: <172398542854.293426.832756994547822125.stgit@devnote2>
Date: Sun, 18 Aug 2024 21:50:28 +0900
From: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
To: Alexei Starovoitov <alexei.starovoitov@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
Florent Revest <revest@...omium.org>
Cc: linux-trace-kernel@...r.kernel.org,
LKML <linux-kernel@...r.kernel.org>,
Martin KaFai Lau <martin.lau@...ux.dev>,
bpf <bpf@...r.kernel.org>,
Sven Schnelle <svens@...ux.ibm.com>,
Alexei Starovoitov <ast@...nel.org>,
Jiri Olsa <jolsa@...nel.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Alan Maguire <alan.maguire@...cle.com>,
Mark Rutland <mark.rutland@....com>,
Peter Zijlstra <peterz@...radead.org>,
Thomas Gleixner <tglx@...utronix.de>,
Guo Ren <guoren@...nel.org>
Subject: [PATCH v13 15/20] tracing: Fix function timing profiler to initialize hashtable
From: Masami Hiramatsu (Google) <mhiramat@...nel.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.
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>
---
kernel/trace/ftrace.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index fd6c5a50c5e5..c55cf21fd53c 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -885,6 +885,10 @@ 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,
};
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