Commit c54a1a06 authored by Masami Hiramatsu (Google)'s avatar Masami Hiramatsu (Google) Committed by Steven Rostedt (Google)
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tracing: Fix function timing profiler to initialize hashtable 



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: 5fccc755 ("ftrace: Add subops logic to allow one ops to manage many")
Signed-off-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent 9852d85e

kernel/trace/ftrace.c

+4 −0
Original line number Diff line number Diff line
@@ -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,

};