projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: a0cff57) | patch
kvm: Serialize wq active checks in kvm_vcpu_wake_up()
authorDavidlohr Bueso <dave@stgolabs.net>
Wed, 13 Sep 2017 20:08:22 +0000 (13:08 -0700)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 15 Sep 2017 14:57:12 +0000 (16:57 +0200)
commit5e0018b3e39e9b44dbfb380b83026e55d2f65b91
tree952ca6bfcd94135fa0c609f40f54a7a9ef603d04tree | snapshot (tar.gz zip)
parenta0cff57bb2a41cb9cbf13d3203097b4156d8c0aecommit | diff
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>
virt/kvm/kvm_main.c diff | blob | blame | history