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| author |   Benjamin Segall <bsegall@google.com> | 2021-04-29 16:22:34 +0000 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2021-05-03 11:25:36 -0400 |
| commit | 262de4102c7bb8e59f26a967a8ffe8cce85cc537 (patch) | |
| tree | 5edd83d866953237b4971e9c1ab9e60d7bc416e9 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | KVM: LAPIC: Accurately guarantee busy wait for timer to expire when using hv_timer (diff) | |
| download | linux-dev-262de4102c7bb8e59f26a967a8ffe8cce85cc537.tar.xz linux-dev-262de4102c7bb8e59f26a967a8ffe8cce85cc537.zip | |
kvm: exit halt polling on need_resched() as well
single_task_running() is usually more general than need_resched()
but CFS_BANDWIDTH throttling will use resched_task() when there
is just one task to get the task to block. This was causing
long-need_resched warnings and was likely allowing VMs to
overrun their quota when halt polling.
Signed-off-by: Ben Segall <bsegall@google.com>
Signed-off-by: Venkatesh Srinivas <venkateshs@chromium.org>
Message-Id: <20210429162233.116849-1-venkateshs@chromium.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Jim Mattson <jmattson@google.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions