ftrace_filter_write  442 include/linux/ftrace.h ssize_t ftrace_filter_write(struct file *file, const char __user *ubuf,
ftrace_filter_write 5088 kernel/trace/ftrace.c 	.write = ftrace_filter_write,
ftrace_filter_write  510 kernel/trace/trace_stack.c 	.write = ftrace_filter_write,