Replace srcu_dereference()+rcu_assign_pointer() sequence with
a single rcu_replace_pointer().
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://lore.kernel.org/r/20230107001256.2365304-4-mhal@rbox.co
Signed-off-by: Sean Christopherson <seanjc@google.com>
}
mutex_lock(&kvm->lock);
-
/* The per-VM filter is protected by kvm->lock... */
- old_filter = srcu_dereference_check(kvm->arch.msr_filter, &kvm->srcu, 1);
-
- rcu_assign_pointer(kvm->arch.msr_filter, new_filter);
+ old_filter = rcu_replace_pointer(kvm->arch.msr_filter, new_filter, 1);
mutex_unlock(&kvm->lock);
synchronize_srcu(&kvm->srcu);