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| author | Davidlohr Bueso <dave@stgolabs.net> | 2017-09-13 13:08:19 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-09-15 16:57:11 +0200 |
| commit | b9f67a420b3d76991592558af06e9cf1b8953b3d (patch) | |
| tree | c5c72322aea9ca523d6e7eba1214fa6fffb4da37 | |
| parent | 8cd641e3c7cbf86c7cbd2a17a160dd137d86c860 (diff) | |
| download | lwn-b9f67a420b3d76991592558af06e9cf1b8953b3d.tar.gz lwn-b9f67a420b3d76991592558af06e9cf1b8953b3d.zip | |
kvm,async_pf: Use swq_has_sleeper()
... as we've got the new helper now. This caller already
does the right thing, hence no changes in semantics.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | virt/kvm/async_pf.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index bb298a200cd3..57bcb27dcf30 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -106,11 +106,7 @@ static void async_pf_execute(struct work_struct *work) trace_kvm_async_pf_completed(addr, gva); - /* - * This memory barrier pairs with prepare_to_wait's set_current_state() - */ - smp_mb(); - if (swait_active(&vcpu->wq)) + if (swq_has_sleeper(&vcpu->wq)) swake_up(&vcpu->wq); mmput(mm); |