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Subject[PATCH 0/4] tracing: Small updates on tracing/set_graph_notrace file

This is an update of recent notrace filter change in the function graph
tracer. It adds a new kernel boot parameter and also adds description of
the file to the tracing/README in debugfs. Finally it changes message
when the (both of) notrace filter hash is empty. They'll print below
message when there's no entry:

# cat /sys/kernel/debug/tracing/set_graph_notrace
#### no functions disabled ####

It's also available at 'ftrace/nograph-v3' branch in my tree



Cc: Naoya Horiguchi <>

Namhyung Kim (4):
tracing: Add ftrace_graph_notrace boot parameter
tracing: Improve message of empty set_graph_notrace file
tracing: Improve message of empty set_ftrace_notrace file
tracing: Add description of set_graph_notrace to tracing/README

Documentation/kernel-parameters.txt | 6 +++++
kernel/trace/ftrace.c | 46 ++++++++++++++++++++++++++++++-----
kernel/trace/trace.c | 1 +
3 files changed, 47 insertions(+), 6 deletions(-)


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