1 files changed, 20 insertions, 20 deletions

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index da70f5c32eb9..7523719bf8a4 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -54,7 +54,7 @@
  * This lock protects updates to the following mapping and reference-count
  * arrays. The lock does not need to be acquired to read the mapping tables.
  */
-static DEFINE_SPINLOCK(irq_mapping_update_lock);
+static DEFINE_MUTEX(irq_mapping_update_lock);
 
 static LIST_HEAD(xen_irq_list_head);
 
@@ -631,7 +631,7 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi,
         int irq = -1;
         struct physdev_irq irq_op;
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         irq = find_irq_by_gsi(gsi);
         if (irq != -1) {
@@ -684,7 +684,7 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi,
                                 handle_edge_irq, name);
 
 out:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
 
         return irq;
 }
@@ -710,7 +710,7 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
 {
         int irq, ret;
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         irq = xen_allocate_irq_dynamic();
         if (irq == -1)
@@ -724,10 +724,10 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
         if (ret < 0)
                 goto error_irq;
 out:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
         return irq;
 error_irq:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
         xen_free_irq(irq);
         return -1;
 }
@@ -740,7 +740,7 @@ int xen_destroy_irq(int irq)
         struct irq_info *info = info_for_irq(irq);
         int rc = -ENOENT;
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         desc = irq_to_desc(irq);
         if (!desc)
@@ -766,7 +766,7 @@ int xen_destroy_irq(int irq)
         xen_free_irq(irq);
 
 out:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
         return rc;
 }
 
@@ -776,7 +776,7 @@ int xen_irq_from_pirq(unsigned pirq)
 
         struct irq_info *info;
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         list_for_each_entry(info, &xen_irq_list_head, list) {
                 if (info == NULL || info->type != IRQT_PIRQ)
@@ -787,7 +787,7 @@ int xen_irq_from_pirq(unsigned pirq)
         }
         irq = -1;
 out:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
 
         return irq;
 }
@@ -802,7 +802,7 @@ int bind_evtchn_to_irq(unsigned int evtchn)
 {
         int irq;
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         irq = evtchn_to_irq[evtchn];
 
@@ -818,7 +818,7 @@ int bind_evtchn_to_irq(unsigned int evtchn)
         }
 
 out:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
 
         return irq;
 }
@@ -829,7 +829,7 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
         struct evtchn_bind_ipi bind_ipi;
         int evtchn, irq;
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         irq = per_cpu(ipi_to_irq, cpu)[ipi];
 
@@ -853,7 +853,7 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
         }
 
  out:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
         return irq;
 }
 
@@ -878,7 +878,7 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
         struct evtchn_bind_virq bind_virq;
         int evtchn, irq;
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         irq = per_cpu(virq_to_irq, cpu)[virq];
 
@@ -903,7 +903,7 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
         }
 
 out:
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
 
         return irq;
 }
@@ -913,7 +913,7 @@ static void unbind_from_irq(unsigned int irq)
         struct evtchn_close close;
         int evtchn = evtchn_from_irq(irq);
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         if (VALID_EVTCHN(evtchn)) {
                 close.port = evtchn;
@@ -943,7 +943,7 @@ static void unbind_from_irq(unsigned int irq)
 
         xen_free_irq(irq);
 
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
 }
 
 int bind_evtchn_to_irqhandler(unsigned int evtchn,
@@ -1279,7 +1279,7 @@ void rebind_evtchn_irq(int evtchn, int irq)
            will also be masked. */
         disable_irq(irq);
 
-        spin_lock(&irq_mapping_update_lock);
+        mutex_lock(&irq_mapping_update_lock);
 
         /* After resume the irq<->evtchn mappings are all cleared out */
         BUG_ON(evtchn_to_irq[evtchn] != -1);
@@ -1289,7 +1289,7 @@ void rebind_evtchn_irq(int evtchn, int irq)
 
         xen_irq_info_evtchn_init(irq, evtchn);
 
-        spin_unlock(&irq_mapping_update_lock);
+        mutex_unlock(&irq_mapping_update_lock);
 
         /* new event channels are always bound to cpu 0 */
         irq_set_affinity(irq, cpumask_of(0));