From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Andrew Morton <akpm@linux-foundation.org>,
stable@vger.kernel.org
Subject: [for-next][PATCH 1/5] tracing: Fix function timing profiler to initialize hashtable
Date: Tue, 01 Oct 2024 17:42:42 -0400 [thread overview]
Message-ID: <20241001214306.944809736@goodmis.org> (raw)
In-Reply-To: <20241001214241.688116616@goodmis.org>
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
next prev parent reply other threads:[~2024-10-01 21:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-01 21:42 [for-next][PATCH 0/5] tracing/ftrace: Updates for 6.13 Steven Rostedt
2024-10-01 21:42 ` Steven Rostedt [this message]
2024-10-01 21:42 ` [for-next][PATCH 2/5] tracing: Add a comment about ftrace_regs definition Steven Rostedt
2024-10-01 21:42 ` [for-next][PATCH 3/5] fgraph: Use fgraph data to store subtime for profiler Steven Rostedt
2024-10-01 21:42 ` [for-next][PATCH 4/5] ftrace: Use a running sleeptime instead of saving on shadow stack Steven Rostedt
2024-10-01 21:42 ` [for-next][PATCH 5/5] ftrace: Have calltime be saved in the fgraph storage Steven Rostedt
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