perf intel-pt: Fix sync_switch
authorAdrian Hunter <adrian.hunter@intel.com>
Wed, 7 Mar 2018 14:02:22 +0000 (16:02 +0200)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 8 Mar 2018 13:05:55 +0000 (10:05 -0300)
commit63d8e38f6ae6c36dd5b5ba0e8c112e8861532ea2
tree888ea8ae38cf9766168375f09fe2dd0d05e838a5
parent117db4b27bf08dba412faf3924ba55fe970c57b8
perf intel-pt: Fix sync_switch

sync_switch is a facility to synchronize decoding more closely with the
point in the kernel when the context actually switched.

The flag when sync_switch is enabled was global to the decoding, whereas
it is really specific to the CPU.

The trace data for different CPUs is put on different queues, so add
sync_switch to the intel_pt_queue structure and use that in preference
to the global setting in the intel_pt structure.

That fixes problems decoding one CPU's trace because sync_switch was
disabled on a different CPU's queue.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1520431349-30689-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/intel-pt.c