Messages in this thread | | | Date | Mon, 28 Sep 2020 17:33:31 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH] time/sched_clock: mark sched_clock_read_begin as notrace |
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On Mon, 28 Sep 2020 12:58:59 +0200 Peter Zijlstra <peterz@infradead.org> wrote:
> > -struct clock_read_data *sched_clock_read_begin(unsigned int *seq) > > +notrace struct clock_read_data *sched_clock_read_begin(unsigned int *seq) > > { > > *seq = raw_read_seqcount_latch(&cd.seq); > > return cd.read_data + (*seq & 1); > > At the very least sched_clock_read_retry() should also be marked such. > > But Steve, how come x86 works? Our sched_clock() doesn't have notrace on > at all.
It's because of that magic in the Makefile that you love so much ;-)
CFLAGS_REMOVE_tsc.o = -pg
-- Steve
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