Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU updates from Ingo Molnar:
 "The biggest RCU changes in this cycle were:

   - Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar.

   - Replace calls of RCU-bh and RCU-sched update-side functions to
     their vanilla RCU counterparts. This series is a step towards
     complete removal of the RCU-bh and RCU-sched update-side functions.

     ( Note that some of these conversions are going upstream via their
       respective maintainers. )

   - Documentation updates, including a number of flavor-consolidation
     updates from Joel Fernandes.

   - Miscellaneous fixes.

   - Automate generation of the initrd filesystem used for rcutorture
     testing.

   - Convert spin_is_locked() assertions to instead use lockdep.

     ( Note that some of these conversions are going upstream via their
       respective maintainers. )

   - SRCU updates, especially including a fix from Dennis Krein for a
     bag-on-head-class bug.

   - RCU torture-test updates"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (112 commits)
  rcutorture: Don't do busted forward-progress testing
  rcutorture: Use 100ms buckets for forward-progress callback histograms
  rcutorture: Recover from OOM during forward-progress tests
  rcutorture: Print forward-progress test age upon failure
  rcutorture: Print time since GP end upon forward-progress failure
  rcutorture: Print histogram of CB invocation at OOM time
  rcutorture: Print GP age upon forward-progress failure
  rcu: Print per-CPU callback counts for forward-progress failures
  rcu: Account for nocb-CPU callback counts in RCU CPU stall warnings
  rcutorture: Dump grace-period diagnostics upon forward-progress OOM
  rcutorture: Prepare for asynchronous access to rcu_fwd_startat
  torture: Remove unnecessary "ret" variables
  rcutorture: Affinity forward-progress test to avoid housekeeping CPUs
  rcutorture: Break up too-long rcu_torture_fwd_prog() function
  rcutorture: Remove cbflood facility
  torture: Bring any extra CPUs online during kernel startup
  rcutorture: Add call_rcu() flooding forward-progress tests
  rcutorture/formal: Replace synchronize_sched() with synchronize_rcu()
  tools/kernel.h: Replace synchronize_sched() with synchronize_rcu()
  net/decnet: Replace rcu_barrier_bh() with rcu_barrier()
  ...

1 files changed, 6 insertions, 6 deletions

diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c
index a6b135491b6c..870b1185173b 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)