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perf intel-pt: Packet splitting can happen only on 32-bit

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Data is copied when the trace is stopped, so packets are never split
between buffers except when processing if the buffer cannot fit in the
address space which can only happen on 32-bit systems. Change the logic
to reflect that.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190206103947.15750-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-02-06 12:39:46 +02:00 • committed by Arnaldo Carvalho de Melo
parent 0399761290
commit 26ee2bcdea
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
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@ -868,7 +868,7 @@ static int intel_pt_get_next_packet(struct intel_pt_decoder *decoder)
ret = intel_pt_get_packet(decoder->buf, decoder->len,
&decoder->packet);
if (ret == INTEL_PT_NEED_MORE_BYTES &&
if (ret == INTEL_PT_NEED_MORE_BYTES && BITS_PER_LONG == 32 &&
decoder->len < INTEL_PT_PKT_MAX_SZ && !decoder->next_buf) {
ret = intel_pt_get_split_packet(decoder);
if (ret < 0)