tracing: Change apply_subsystem_event_filter() paths to check file->system == dir

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filter_free_subsystem_preds(), filter_free_subsystem_filters() and
replace_system_preds() can simply check file->system->subsystem and
avoid strcmp(call->class->system).

Better yet, we can pass "struct ftrace_subsystem_dir *dir" instead of
event_subsystem and just check file->system == dir.

Thanks to Namhyung Kim who pointed out that replace_system_preds() can
be changed too.

Link: http://lkml.kernel.org/p/20140715184829.GA20516@redhat.com

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Oleg Nesterov 2014-07-15 20:48:29 +02:00 • committed by Steven Rostedt

parent e738d3ebbf

commit bb9ef1cb7d

1 changed files with 16 additions and 23 deletions

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kernel/trace/trace_events_filter.c

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