From b59e33efb4999994a48a6048b2f6bd0ab9f92eac Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Sat, 10 Jan 2009 21:58:09 -0800
Subject: [PATCH] --- yaml --- r: 136371 b: refs/heads/master c:
 802bf931f2688ad125b73db597ce63cc842fb27a h: refs/heads/master i:   136369:
 4b193177895abbe4c2add6e9fb9511db70f3065e   136367:
 7073e3991cfa6d9d73ea3e20bd3295efc7be87ab v: v3

---
 [refs]                          |  2 +-
 trunk/include/linux/irq.h       |  9 +++++++--
 trunk/kernel/irq/handle.c       |  8 +-------
 trunk/kernel/irq/numa_migrate.c | 13 ++++++++-----
 4 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/[refs] b/[refs]
index 1d490b59e453..a6cf6a13305d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 651f8118cf0a5724f23fe1de4a3d9d36b2e01c2e
+refs/heads/master: 802bf931f2688ad125b73db597ce63cc842fb27a
diff --git a/trunk/include/linux/irq.h b/trunk/include/linux/irq.h
index fa27210f1dfd..27a67536511e 100644
--- a/trunk/include/linux/irq.h
+++ b/trunk/include/linux/irq.h
@@ -426,15 +426,18 @@ extern int set_irq_msi(unsigned int irq, struct msi_desc *entry);
 /**
  * init_alloc_desc_masks - allocate cpumasks for irq_desc
  * @desc:	pointer to irq_desc struct
+ * @cpu:	cpu which will be handling the cpumasks
  * @boot:	true if need bootmem
  *
  * Allocates affinity and pending_mask cpumask if required.
  * Returns true if successful (or not required).
  * Side effect: affinity has all bits set, pending_mask has all bits clear.
  */
-static inline bool init_alloc_desc_masks(struct irq_desc *desc, int node,
+static inline bool init_alloc_desc_masks(struct irq_desc *desc, int cpu,
 								bool boot)
 {
+	int node;
+
 	if (boot) {
 		alloc_bootmem_cpumask_var(&desc->affinity);
 		cpumask_setall(desc->affinity);
@@ -446,6 +449,8 @@ static inline bool init_alloc_desc_masks(struct irq_desc *desc, int node,
 		return true;
 	}
 
+	node = cpu_to_node(cpu);
+
 	if (!alloc_cpumask_var_node(&desc->affinity, GFP_ATOMIC, node))
 		return false;
 	cpumask_setall(desc->affinity);
@@ -484,7 +489,7 @@ static inline void init_copy_desc_masks(struct irq_desc *old_desc,
 
 #else /* !CONFIG_SMP */
 
-static inline bool init_alloc_desc_masks(struct irq_desc *desc, int node,
+static inline bool init_alloc_desc_masks(struct irq_desc *desc, int cpu,
 								bool boot)
 {
 	return true;
diff --git a/trunk/kernel/irq/handle.c b/trunk/kernel/irq/handle.c
index b8fa1354f01c..f01c0a30cb42 100644
--- a/trunk/kernel/irq/handle.c
+++ b/trunk/kernel/irq/handle.c
@@ -85,8 +85,6 @@ void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr)
 
 static void init_one_irq_desc(int irq, struct irq_desc *desc, int cpu)
 {
-	int node = cpu_to_node(cpu);
-
 	memcpy(desc, &irq_desc_init, sizeof(struct irq_desc));
 
 	spin_lock_init(&desc->lock);
@@ -100,7 +98,7 @@ static void init_one_irq_desc(int irq, struct irq_desc *desc, int cpu)
 		printk(KERN_ERR "can not alloc kstat_irqs\n");
 		BUG_ON(1);
 	}
-	if (!init_alloc_desc_masks(desc, node, false)) {
+	if (!init_alloc_desc_masks(desc, cpu, false)) {
 		printk(KERN_ERR "can not alloc irq_desc cpumasks\n");
 		BUG_ON(1);
 	}
@@ -188,10 +186,6 @@ struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu)
 		printk(KERN_ERR "can not alloc irq_desc\n");
 		BUG_ON(1);
 	}
-	if (!init_alloc_desc_masks(desc, node, false)) {
-		printk(KERN_ERR "can not alloc irq_desc cpumasks\n");
-		BUG_ON(1);
-	}
 	init_one_irq_desc(irq, desc, cpu);
 
 	irq_desc_ptrs[irq] = desc;
diff --git a/trunk/kernel/irq/numa_migrate.c b/trunk/kernel/irq/numa_migrate.c
index f001a4ea6414..666260e4c065 100644
--- a/trunk/kernel/irq/numa_migrate.c
+++ b/trunk/kernel/irq/numa_migrate.c
@@ -38,16 +38,22 @@ static void free_kstat_irqs(struct irq_desc *old_desc, struct irq_desc *desc)
 	old_desc->kstat_irqs = NULL;
 }
 
-static void init_copy_one_irq_desc(int irq, struct irq_desc *old_desc,
+static bool init_copy_one_irq_desc(int irq, struct irq_desc *old_desc,
 		 struct irq_desc *desc, int cpu)
 {
 	memcpy(desc, old_desc, sizeof(struct irq_desc));
+	if (!init_alloc_desc_masks(desc, cpu, false)) {
+		printk(KERN_ERR "irq %d: can not get new irq_desc cpumask "
+				"for migration.\n", irq);
+		return false;
+	}
 	spin_lock_init(&desc->lock);
 	desc->cpu = cpu;
 	lockdep_set_class(&desc->lock, &irq_desc_lock_class);
 	init_copy_kstat_irqs(old_desc, desc, cpu, nr_cpu_ids);
 	init_copy_desc_masks(old_desc, desc);
 	arch_init_copy_chip_data(old_desc, desc, cpu);
+	return true;
 }
 
 static void free_one_irq_desc(struct irq_desc *old_desc, struct irq_desc *desc)
@@ -83,15 +89,12 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
 		desc = old_desc;
 		goto out_unlock;
 	}
-	if (!init_alloc_desc_masks(desc, node, false)) {
-		printk(KERN_ERR "irq %d: can not get new irq_desc cpumask "
-				"for migration.\n", irq);
+	if (!init_copy_one_irq_desc(irq, old_desc, desc, cpu)) {
 		/* still use old one */
 		kfree(desc);
 		desc = old_desc;
 		goto out_unlock;
 	}
-	init_copy_one_irq_desc(irq, old_desc, desc, cpu);
 
 	irq_desc_ptrs[irq] = desc;