Messages in this thread | | | Date | Tue, 3 Apr 2018 18:59:37 -0400 | From | Steven Rostedt <> | Subject | Re: [RFC][PATCH] tracing, printk: Force no hashing when trace_printk() is used |
| |
On Wed, 4 Apr 2018 07:43:49 +1000 "Tobin C. Harding" <me@tobin.cc> wrote:
> > static noinline_for_stack > > char *restricted_pointer(char *buf, char *end, const void *ptr, > > @@ -1962,6 +1963,10 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, > > return pointer_string(buf, end, ptr, spec); > > } > > > > + /* When the kernel is in debugging mode, show all pointers */ > > + if (static_key_false(&trace_debug)) > > + return restricted_pointer(buf, end, ptr, spec); > > + > > /* default is to _not_ leak addresses, hash before printing */ > > return ptr_to_id(buf, end, ptr, spec); > > } > > This uses the deprecated API Steve (I only know because I went to read > Documentation/static-keys.txt after seeing this patch).
Hmm, I've been involved with static keys since it was introduced. I simply copied the code for the original use case (tracepoints). I forgot that we are changing the name (this has been an ongoing bikeshed for some time, I can't keep up. Better than the original suggestion "really_unlikely()" ;)
I need to update tracepoints too.
-- Steve
| |