diff options
| author | Lance Roy <ldr709@gmail.com> | 2018-10-04 23:45:50 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-11-12 09:06:22 -0800 |
| commit | d4d592a6eeda1e381f38f398e7a0474a599c11ed (patch) | |
| tree | 52b092e47fde5c929488eadbdc20a4147e6ce26e /virt | |
| parent | 35f3aa39f243e8c95e12a2b2d05b1d2e62ac58a4 (diff) | |
| download | lwn-d4d592a6eeda1e381f38f398e7a0474a599c11ed.tar.gz lwn-d4d592a6eeda1e381f38f398e7a0474a599c11ed.zip | |
KVM: arm/arm64: vgic: Replace spin_is_locked() with lockdep
lockdep_assert_held() is better suited to checking locking requirements,
since it only checks if the current thread holds the lock regardless of
whether someone else does. This is also a step towards possibly removing
spin_is_locked().
Signed-off-by: Lance Roy <ldr709@gmail.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: <kvmarm@lists.cs.columbia.edu>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Acked-by: Christoffer Dall <christoffer.dall@arm.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c index 7cfdfbc910e0..50e25438fb3c 100644 --- a/virt/kvm/arm/vgic/vgic.c +++ b/virt/kvm/arm/vgic/vgic.c @@ -196,7 +196,7 @@ void vgic_irq_set_phys_active(struct vgic_irq *irq, bool active) */ static struct kvm_vcpu *vgic_target_oracle(struct vgic_irq *irq) { - DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&irq->irq_lock)); + lockdep_assert_held(&irq->irq_lock); /* If the interrupt is active, it must stay on the current vcpu */ if (irq->active) @@ -273,7 +273,7 @@ static void vgic_sort_ap_list(struct kvm_vcpu *vcpu) { struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu; - DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&vgic_cpu->ap_list_lock)); + lockdep_assert_held(&vgic_cpu->ap_list_lock); list_sort(NULL, &vgic_cpu->ap_list_head, vgic_irq_cmp); } @@ -311,7 +311,7 @@ bool vgic_queue_irq_unlock(struct kvm *kvm, struct vgic_irq *irq, { struct kvm_vcpu *vcpu; - DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&irq->irq_lock)); + lockdep_assert_held(&irq->irq_lock); retry: vcpu = vgic_target_oracle(irq); @@ -702,7 +702,7 @@ static inline void vgic_fold_lr_state(struct kvm_vcpu *vcpu) static inline void vgic_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr) { - DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&irq->irq_lock)); + lockdep_assert_held(&irq->irq_lock); if (kvm_vgic_global_state.type == VGIC_V2) vgic_v2_populate_lr(vcpu, irq, lr); @@ -736,7 +736,7 @@ static int compute_ap_list_depth(struct kvm_vcpu *vcpu, *multi_sgi = false; - DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&vgic_cpu->ap_list_lock)); + lockdep_assert_held(&vgic_cpu->ap_list_lock); list_for_each_entry(irq, &vgic_cpu->ap_list_head, ap_list) { int w; @@ -761,7 +761,7 @@ static void vgic_flush_lr_state(struct kvm_vcpu *vcpu) bool multi_sgi; u8 prio = 0xff; - DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&vgic_cpu->ap_list_lock)); + lockdep_assert_held(&vgic_cpu->ap_list_lock); count = compute_ap_list_depth(vcpu, &multi_sgi); if (count > kvm_vgic_global_state.nr_lr || multi_sgi) |