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From a54b35c3b0c3b228eb924ed4ebfb964eead86cca Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ond=C5=99ej=20Lyson=C4=9Bk?= <olysonek@redhat.com>
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Date: Fri, 14 Dec 2018 13:13:58 +0100
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Subject: [PATCH] scheduler: Keep polling file objects alive long enough
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Make sure the file objects returned by evlist.get_pollfd()
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don't go out of scope and get destroyed too soon. This is
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a workaround for python3-perf rhbz#1659445.
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Resolves: rhbz#1659140
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Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
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---
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tuned/plugins/plugin_scheduler.py | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/tuned/plugins/plugin_scheduler.py b/tuned/plugins/plugin_scheduler.py
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index 93b6d91..22e49d3 100644
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--- a/tuned/plugins/plugin_scheduler.py
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+++ b/tuned/plugins/plugin_scheduler.py
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@@ -448,7 +448,11 @@ class SchedulerPlugin(base.Plugin):
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def _thread_code(self, instance):
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r = self._cmd.re_lookup_compile(instance._sched_lookup)
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poll = select.poll()
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- for fd in instance._evlist.get_pollfd():
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+ # Store the file objects in a local variable so that they don't
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+ # go out of scope too soon. This is a workaround for
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+ # python3-perf bug rhbz#1659445.
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+ fds = instance._evlist.get_pollfd()
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+ for fd in fds:
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poll.register(fd)
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while not instance._terminate.is_set():
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# timeout to poll in milliseconds
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--
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2.17.2
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