Re: [PATCH v7 tip 3/8] tracing: allow BPF programs to call bpf_ktime_get_ns()

[Steven Rostedt]

On Thu, 19 Mar 2015 08:38:05 -0700
Alexei Starovoitov <ast@xxxxxxxxxxxx> wrote:

> > Hmm, a nanosecond value returned as integer? Is there a way to make
> > this a 64 bit return type, or is RET_INTEGER default to 64 bits in BPF
> > functions?
> 
> RET_INTEGER doesn't mean C 'int' width. It means non-pointer and
> non-void value. The return value is always promoted to full
> register width which is 64-bit.
> 

OK.

Reviewed-by: Steven Rostedt <rostedt@xxxxxxxxxxx>

-- Steve
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