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| author | Nicholas Piggin <npiggin@gmail.com> | 2017-10-21 17:56:06 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-11-06 16:48:07 +1100 |
| commit | ff967900c9d4740f6337c6456f111104267633cb (patch) | |
| tree | 136a411741429b7ec6865aa56c4fb236a98f4470 /tools/perf/scripts/python | |
| parent | KVM: PPC: Book3S HV: Handle host system reset in guest mode (diff) | |
| download | linux-ff967900c9d4740f6337c6456f111104267633cb.tar.gz linux-ff967900c9d4740f6337c6456f111104267633cb.zip | |
powerpc/64: Fix latency tracing for lazy irq replay
When returning from an exception to a soft-enabled context, pending
IRQs are replayed but IRQ tracing is not reset, so a number of them
can get chained together into the same IRQ-disabled trace.
Fix this by having __check_irq_replay re-set IRQ trace. This is
conceptually where we respond to the next interrupt, so it fits the
semantics of the IRQ tracer.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions