diff mbox series

[v15,14/19] tracing: Fix function timing profiler to initialize hashtable

Message ID 172639153271.366111.7639381985296883820.stgit@devnote2 (mailing list archive)
State Not Applicable
Headers show
Series tracing: fprobe: function_graph: Multi-function graph and fprobe on fgraph | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Masami Hiramatsu (Google) Sept. 15, 2024, 9:12 a.m. UTC 
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.

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
---
 kernel/trace/ftrace.c |    4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 66aea1baf8a2..d589057957d2 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -904,6 +904,10 @@  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,
 };