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| author |   Davidlohr Bueso <dave@stgolabs.net> | 2017-09-13 13:08:22 -0700 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2017-09-15 16:57:12 +0200 |
| commit | 5e0018b3e39e9b44dbfb380b83026e55d2f65b91 (patch) | |
| tree | 952ca6bfcd94135fa0c609f40f54a7a9ef603d04 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | kvm,x86: Fix apf_task_wake_one() wq serialization (diff) | |
| download | wireguard-linux-5e0018b3e39e9b44dbfb380b83026e55d2f65b91.tar.xz wireguard-linux-5e0018b3e39e9b44dbfb380b83026e55d2f65b91.zip | |
kvm: Serialize wq active checks in kvm_vcpu_wake_up()
This is a generic call and can be suceptible to races
in reading the wq task_list while another task is adding
itself to the list. Add a full barrier by using the
swq_has_sleeper() helper.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions