perf script: Fix event ordering settings to work with older kernels
If we don't use .ordering_requires_timestamps we'll end up trying to order events with no timestamps when running on older kernels. Problem introduced in eac23d1c . After the last three fixes, perf scripting is back working, tested with new perf userspace on old and new (with sample_id_all) kernels. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ian Munsie <imunsie@au1.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Torok Edwin <edwintorok@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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