On Mon, Apr 18, 2016 at 08:11:50PM -0700, Alexei Starovoitov wrote: > move trace_call_bpf() into helper function to minimize the size > of perf_trace_*() tracepoint handlers. > text data bss dec hex filename > 10541679 5526646 2945024 19013349 1221ee5 vmlinux_before > 10509422 5526646 2945024 18981092 121a0e4 vmlinux_after > > It may seem that perf_fetch_caller_regs() can also be moved, > but that is incorrect, since ip/sp will be wrong. > > bpf+tracepoint performance is not affected, since > perf_swevent_put_recursion_context() is now inlined. > export_symbol_gpl can also be dropped. > > No measurable change in normal perf tracepoints. > > Suggested-by: Steven Rostedt <rost...@goodmis.org> > Signed-off-by: Alexei Starovoitov <a...@kernel.org> > --- > include/linux/trace_events.h | 5 +++++ > include/trace/perf.h | 13 +++---------- > kernel/events/core.c | 20 +++++++++++++++++++- > 3 files changed, 27 insertions(+), 11 deletions(-) >
Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org> David, please take through the net tree as this depends on prior patches by Alexei that are already in your tree.
