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authorOleg Nesterov <oleg@redhat.com>2013-08-06 18:08:41 +0200
committerSteven Rostedt <rostedt@goodmis.org>2013-08-13 21:05:12 -0400
commit36009d07b79d2a168d6037947357d96e5d8cebe7 (patch)
tree70e960fc660e47cfaf7546cbd7cd401a4842846f /Makefile
parentd4e4ab86bcba5a72779c43dc1459f71fea3d89c8 (diff)
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tracing/perf: Expand TRACE_EVENT(sched_stat_runtime)
To simplify the review of the next patches: 1. We are going to reimplent __perf_task/counter and embedd them into TP_ARGS(). expand TRACE_EVENT(sched_stat_runtime) into DECLARE_EVENT_CLASS() + DEFINE_EVENT(), this way they can use different TP_ARGS's. 2. Change perf_trace_##call() macro to do perf_fetch_caller_regs() right before perf_trace_buf_prepare(). This way it evaluates TP_ARGS() asap, the next patch explores this fact. Note: after 87f44bbc perf_trace_buf_prepare() doesn't need "struct pt_regs *regs", perhaps it makes sense to remove this argument. And perhaps we can teach perf_trace_buf_submit() to accept regs == NULL and do fetch_caller_regs(CALLER_ADDR1) in this case. 3. Cosmetic, but the typecast from "void*" buys nothing. It just adds the noise, remove it. Link: http://lkml.kernel.org/r/20130806160841.GA2736@redhat.com Acked-by: Peter Zijlstra <peterz@infradead.org> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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