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

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock()
  lockdep: Comment all warnings
  lib: atomic64: Change the type of local lock to raw_spinlock_t
  locking, lib/atomic64: Annotate atomic64_lock::lock as raw
  locking, x86, iommu: Annotate qi->q_lock as raw
  locking, x86, iommu: Annotate irq_2_ir_lock as raw
  locking, x86, iommu: Annotate iommu->register_lock as raw
  locking, dma, ipu: Annotate bank_lock as raw
  locking, ARM: Annotate low level hw locks as raw
  locking, drivers/dca: Annotate dca_lock as raw
  locking, powerpc: Annotate uic->lock as raw
  locking, x86: mce: Annotate cmci_discover_lock as raw
  locking, ACPI: Annotate c3_lock as raw
  locking, oprofile: Annotate oprofilefs lock as raw
  locking, video: Annotate vga console lock as raw
  locking, latencytop: Annotate latency_lock as raw
  locking, timer_stats: Annotate table_lock as raw
  locking, rwsem: Annotate inner lock as raw
  locking, semaphores: Annotate inner lock as raw
  locking, sched: Annotate thread_group_cputimer as raw
  ...

Fix up conflicts in kernel/posix-cpu-timers.c manually: making
cputimer->cputime a raw lock conflicted with the ABBA fix in commit
bcd5cff7216f ("cputimer: Cure lock inversion").

1 files changed, 24 insertions, 24 deletions

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 587e8f2d38d8..35c1e17fce1d 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -652,7 +652,7 @@ int alloc_iommu(struct dmar_drhd_unit *drhd)
                 (unsigned long long)iommu->cap,
                 (unsigned long long)iommu->ecap);
 
-        spin_lock_init(&iommu->register_lock);
+        raw_spin_lock_init(&iommu->register_lock);
 
         drhd->iommu = iommu;
         return 0;
@@ -771,11 +771,11 @@ int qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu)
 restart:
         rc = 0;
 
-        spin_lock_irqsave(&qi->q_lock, flags);
+        raw_spin_lock_irqsave(&qi->q_lock, flags);
         while (qi->free_cnt < 3) {
-                spin_unlock_irqrestore(&qi->q_lock, flags);
+                raw_spin_unlock_irqrestore(&qi->q_lock, flags);
                 cpu_relax();
-                spin_lock_irqsave(&qi->q_lock, flags);
+                raw_spin_lock_irqsave(&qi->q_lock, flags);
         }
 
         index = qi->free_head;
@@ -815,15 +815,15 @@ restart:
                 if (rc)
                         break;
 
-                spin_unlock(&qi->q_lock);
+                raw_spin_unlock(&qi->q_lock);
                 cpu_relax();
-                spin_lock(&qi->q_lock);
+                raw_spin_lock(&qi->q_lock);
         }
 
         qi->desc_status[index] = QI_DONE;
 
         reclaim_free_desc(qi);
-        spin_unlock_irqrestore(&qi->q_lock, flags);
+        raw_spin_unlock_irqrestore(&qi->q_lock, flags);
 
         if (rc == -EAGAIN)
                 goto restart;
@@ -912,7 +912,7 @@ void dmar_disable_qi(struct intel_iommu *iommu)
         if (!ecap_qis(iommu->ecap))
                 return;
 
-        spin_lock_irqsave(&iommu->register_lock, flags);
+        raw_spin_lock_irqsave(&iommu->register_lock, flags);
 
         sts =  dmar_readq(iommu->reg + DMAR_GSTS_REG);
         if (!(sts & DMA_GSTS_QIES))
@@ -932,7 +932,7 @@ void dmar_disable_qi(struct intel_iommu *iommu)
         IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG, readl,
                       !(sts & DMA_GSTS_QIES), sts);
 end:
-        spin_unlock_irqrestore(&iommu->register_lock, flags);
+        raw_spin_unlock_irqrestore(&iommu->register_lock, flags);
 }
 
 /*
@@ -947,7 +947,7 @@ static void __dmar_enable_qi(struct intel_iommu *iommu)
         qi->free_head = qi->free_tail = 0;
         qi->free_cnt = QI_LENGTH;
 
-        spin_lock_irqsave(&iommu->register_lock, flags);
+        raw_spin_lock_irqsave(&iommu->register_lock, flags);
 
         /* write zero to the tail reg */
         writel(0, iommu->reg + DMAR_IQT_REG);
@@ -960,7 +960,7 @@ static void __dmar_enable_qi(struct intel_iommu *iommu)
         /* Make sure hardware complete it */
         IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG, readl, (sts & DMA_GSTS_QIES), sts);
 
-        spin_unlock_irqrestore(&iommu->register_lock, flags);
+        raw_spin_unlock_irqrestore(&iommu->register_lock, flags);
 }
 
 /*
@@ -1009,7 +1009,7 @@ int dmar_enable_qi(struct intel_iommu *iommu)
         qi->free_head = qi->free_tail = 0;
         qi->free_cnt = QI_LENGTH;
 
-        spin_lock_init(&qi->q_lock);
+        raw_spin_lock_init(&qi->q_lock);
 
         __dmar_enable_qi(iommu);
 
@@ -1075,11 +1075,11 @@ void dmar_msi_unmask(struct irq_data *data)
         unsigned long flag;
 
         /* unmask it */
-        spin_lock_irqsave(&iommu->register_lock, flag);
+        raw_spin_lock_irqsave(&iommu->register_lock, flag);
         writel(0, iommu->reg + DMAR_FECTL_REG);
         /* Read a reg to force flush the post write */
         readl(iommu->reg + DMAR_FECTL_REG);
-        spin_unlock_irqrestore(&iommu->register_lock, flag);
+        raw_spin_unlock_irqrestore(&iommu->register_lock, flag);
 }
 
 void dmar_msi_mask(struct irq_data *data)
@@ -1088,11 +1088,11 @@ void dmar_msi_mask(struct irq_data *data)
         struct intel_iommu *iommu = irq_data_get_irq_handler_data(data);
 
         /* mask it */
-        spin_lock_irqsave(&iommu->register_lock, flag);
+        raw_spin_lock_irqsave(&iommu->register_lock, flag);
         writel(DMA_FECTL_IM, iommu->reg + DMAR_FECTL_REG);
         /* Read a reg to force flush the post write */
         readl(iommu->reg + DMAR_FECTL_REG);
-        spin_unlock_irqrestore(&iommu->register_lock, flag);
+        raw_spin_unlock_irqrestore(&iommu->register_lock, flag);
 }
 
 void dmar_msi_write(int irq, struct msi_msg *msg)
@@ -1100,11 +1100,11 @@ void dmar_msi_write(int irq, struct msi_msg *msg)
         struct intel_iommu *iommu = irq_get_handler_data(irq);
         unsigned long flag;
 
-        spin_lock_irqsave(&iommu->register_lock, flag);
+        raw_spin_lock_irqsave(&iommu->register_lock, flag);
         writel(msg->data, iommu->reg + DMAR_FEDATA_REG);
         writel(msg->address_lo, iommu->reg + DMAR_FEADDR_REG);
         writel(msg->address_hi, iommu->reg + DMAR_FEUADDR_REG);
-        spin_unlock_irqrestore(&iommu->register_lock, flag);
+        raw_spin_unlock_irqrestore(&iommu->register_lock, flag);
 }
 
 void dmar_msi_read(int irq, struct msi_msg *msg)
@@ -1112,11 +1112,11 @@ void dmar_msi_read(int irq, struct msi_msg *msg)
         struct intel_iommu *iommu = irq_get_handler_data(irq);
         unsigned long flag;
 
-        spin_lock_irqsave(&iommu->register_lock, flag);
+        raw_spin_lock_irqsave(&iommu->register_lock, flag);
         msg->data = readl(iommu->reg + DMAR_FEDATA_REG);
         msg->address_lo = readl(iommu->reg + DMAR_FEADDR_REG);
         msg->address_hi = readl(iommu->reg + DMAR_FEUADDR_REG);
-        spin_unlock_irqrestore(&iommu->register_lock, flag);
+        raw_spin_unlock_irqrestore(&iommu->register_lock, flag);
 }
 
 static int dmar_fault_do_one(struct intel_iommu *iommu, int type,
@@ -1153,7 +1153,7 @@ irqreturn_t dmar_fault(int irq, void *dev_id)
         u32 fault_status;
         unsigned long flag;
 
-        spin_lock_irqsave(&iommu->register_lock, flag);
+        raw_spin_lock_irqsave(&iommu->register_lock, flag);
         fault_status = readl(iommu->reg + DMAR_FSTS_REG);
         if (fault_status)
                 printk(KERN_ERR "DRHD: handling fault status reg %x\n",
@@ -1192,7 +1192,7 @@ irqreturn_t dmar_fault(int irq, void *dev_id)
                 writel(DMA_FRCD_F, iommu->reg + reg +
                         fault_index * PRIMARY_FAULT_REG_LEN + 12);
 
-                spin_unlock_irqrestore(&iommu->register_lock, flag);
+                raw_spin_unlock_irqrestore(&iommu->register_lock, flag);
 
                 dmar_fault_do_one(iommu, type, fault_reason,
                                 source_id, guest_addr);
@@ -1200,14 +1200,14 @@ irqreturn_t dmar_fault(int irq, void *dev_id)
                 fault_index++;
                 if (fault_index >= cap_num_fault_regs(iommu->cap))
                         fault_index = 0;
-                spin_lock_irqsave(&iommu->register_lock, flag);
+                raw_spin_lock_irqsave(&iommu->register_lock, flag);
         }
 clear_rest:
         /* clear all the other faults */
         fault_status = readl(iommu->reg + DMAR_FSTS_REG);
         writel(fault_status, iommu->reg + DMAR_FSTS_REG);
 
-        spin_unlock_irqrestore(&iommu->register_lock, flag);
+        raw_spin_unlock_irqrestore(&iommu->register_lock, flag);
         return IRQ_HANDLED;
 }