Frederic Weisbecker wrote:
>
>
> May be I'm wrong. May be I misunderstood this patch.
> But I don't understand how flags can be used at the same time as a pointer
> and as a flag value.
>
When a new dyn_ftrace is added to ftrace_new_addrs list, the flag is 0,
it's always 0 until this dyn_ftrace is removed from the list, so we can
reuse the flag field. As Steven's suggest, using an union is better.
ftrace_convert_nops()
ftrace_record_ip() // allocate dyn_ftrace, and add it
// to ftrace_new_addrs list
ftrace_update_code() // remove it from ftrace_new_addrs.
Lai.
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