Merge commit 'v2.6.36-rc7' into spi/next

8 files changed, 28 insertions, 16 deletions

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index c0786d446a00..984cdc62e30b 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -55,7 +55,7 @@
 extern u8 acpi_gbl_permanent_mmap;
 
 /*
- * Globals that are publically available, allowing for
+ * Globals that are publicly available, allowing for
  * run time configuration
  */
 extern u32 acpi_dbg_level;
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7809d230adee..4c9461a4f9e6 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -612,7 +612,7 @@ struct drm_gem_object {
 	struct kref refcount;
 
 	/** Handle count of this object. Each handle also holds a reference */
-	struct kref handlecount;
+	atomic_t handle_count; /* number of handles on this object */
 
 	/** Related drm device */
 	struct drm_device *dev;
@@ -808,7 +808,6 @@ struct drm_driver {
 	 */
 	int (*gem_init_object) (struct drm_gem_object *obj);
 	void (*gem_free_object) (struct drm_gem_object *obj);
-	void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
 
 	/* vga arb irq handler */
 	void (*vgaarb_irq)(struct drm_device *dev, bool state);
@@ -1175,6 +1174,7 @@ extern int drm_release(struct inode *inode, struct file *filp);
 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
 extern int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma);
 extern void drm_vm_open_locked(struct vm_area_struct *vma);
+extern void drm_vm_close_locked(struct vm_area_struct *vma);
 extern resource_size_t drm_core_get_map_ofs(struct drm_local_map * map);
 extern resource_size_t drm_core_get_reg_ofs(struct drm_device *dev);
 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
@@ -1455,12 +1455,11 @@ int drm_gem_init(struct drm_device *dev);
 void drm_gem_destroy(struct drm_device *dev);
 void drm_gem_object_release(struct drm_gem_object *obj);
 void drm_gem_object_free(struct kref *kref);
-void drm_gem_object_free_unlocked(struct kref *kref);
 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
 					    size_t size);
 int drm_gem_object_init(struct drm_device *dev,
 			struct drm_gem_object *obj, size_t size);
-void drm_gem_object_handle_free(struct kref *kref);
+void drm_gem_object_handle_free(struct drm_gem_object *obj);
 void drm_gem_vm_open(struct vm_area_struct *vma);
 void drm_gem_vm_close(struct vm_area_struct *vma);
 int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
@@ -1483,8 +1482,12 @@ drm_gem_object_unreference(struct drm_gem_object *obj)
 static inline void
 drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
 {
-	if (obj != NULL)
-		kref_put(&obj->refcount, drm_gem_object_free_unlocked);
+	if (obj != NULL) {
+		struct drm_device *dev = obj->dev;
+		mutex_lock(&dev->struct_mutex);
+		kref_put(&obj->refcount, drm_gem_object_free);
+		mutex_unlock(&dev->struct_mutex);
+	}
 }
 
 int drm_gem_handle_create(struct drm_file *file_priv,
@@ -1495,7 +1498,7 @@ static inline void
 drm_gem_object_handle_reference(struct drm_gem_object *obj)
 {
 	drm_gem_object_reference(obj);
-	kref_get(&obj->handlecount);
+	atomic_inc(&obj->handle_count);
 }
 
 static inline void
@@ -1504,12 +1507,15 @@ drm_gem_object_handle_unreference(struct drm_gem_object *obj)
 	if (obj == NULL)
 		return;
 
+	if (atomic_read(&obj->handle_count) == 0)
+		return;
 	/*
 	 * Must bump handle count first as this may be the last
 	 * ref, in which case the object would disappear before we
 	 * checked for a name
 	 */
-	kref_put(&obj->handlecount, drm_gem_object_handle_free);
+	if (atomic_dec_and_test(&obj->handle_count))
+		drm_gem_object_handle_free(obj);
 	drm_gem_object_unreference(obj);
 }
 
@@ -1519,12 +1525,17 @@ drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
 	if (obj == NULL)
 		return;
 
+	if (atomic_read(&obj->handle_count) == 0)
+		return;
+
 	/*
 	* Must bump handle count first as this may be the last
 	* ref, in which case the object would disappear before we
 	* checked for a name
 	*/
-	kref_put(&obj->handlecount, drm_gem_object_handle_free);
+
+	if (atomic_dec_and_test(&obj->handle_count))
+		drm_gem_object_handle_free(obj);
 	drm_gem_object_unreference_unlocked(obj);
 }
 
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 3a9940ef728b..883c1d439899 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -85,7 +85,6 @@
 	{0x1002, 0x5460, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
 	{0x1002, 0x5462, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
 	{0x1002, 0x5464, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
-	{0x1002, 0x5657, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5548, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5549, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x554A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R423|RADEON_NEW_MEMMAP}, \
@@ -103,6 +102,7 @@
 	{0x1002, 0x564F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5652, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5653, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+	{0x1002, 0x5657, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV410|RADEON_NEW_MEMMAP}, \
 	{0x1002, 0x5834, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP}, \
 	{0x1002, 0x5835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_IS_MOBILITY}, \
 	{0x1002, 0x5954, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS480|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 36ca9721a0c2..1be416bbbb82 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -53,6 +53,7 @@ struct cpuidle_state {
 #define CPUIDLE_FLAG_BALANCED	(0x40) /* medium latency, moderate savings */
 #define CPUIDLE_FLAG_DEEP	(0x80) /* high latency, large savings */
 #define CPUIDLE_FLAG_IGNORE	(0x100) /* ignore during this idle period */
+#define CPUIDLE_FLAG_TLB_FLUSHED (0x200) /* tlb will be flushed */
 
 #define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
 
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index c61d4ca27bcc..e2106495cc11 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -548,7 +548,7 @@ static inline bool dma_dev_has_pq_continue(struct dma_device *dma)
 	return (dma->max_pq & DMA_HAS_PQ_CONTINUE) == DMA_HAS_PQ_CONTINUE;
 }
 
-static unsigned short dma_dev_to_maxpq(struct dma_device *dma)
+static inline unsigned short dma_dev_to_maxpq(struct dma_device *dma)
 {
 	return dma->max_pq & ~DMA_HAS_PQ_CONTINUE;
 }
diff --git a/include/linux/module.h b/include/linux/module.h
index 8a6b9fdc7ffa..aace066bad8f 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -686,17 +686,16 @@ extern int module_sysfs_initialized;
 
 
 #ifdef CONFIG_GENERIC_BUG
-int  module_bug_finalize(const Elf_Ehdr *, const Elf_Shdr *,
+void module_bug_finalize(const Elf_Ehdr *, const Elf_Shdr *,
 			 struct module *);
 void module_bug_cleanup(struct module *);
 
 #else	/* !CONFIG_GENERIC_BUG */
 
-static inline int  module_bug_finalize(const Elf_Ehdr *hdr,
+static inline void module_bug_finalize(const Elf_Ehdr *hdr,
 					const Elf_Shdr *sechdrs,
 					struct module *mod)
 {
-	return 0;
 }
 static inline void module_bug_cleanup(struct module *mod) {}
 #endif	/* CONFIG_GENERIC_BUG */
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 9fbc54a2585d..83af1f8d8b74 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -454,7 +454,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
  * Makes rcu_dereference_check() do the dirty work.
  */
 #define rcu_dereference_bh(p) \
-		rcu_dereference_check(p, rcu_read_lock_bh_held())
+		rcu_dereference_check(p, rcu_read_lock_bh_held() || irqs_disabled())
 
 /**
  * rcu_dereference_sched - fetch RCU-protected pointer, checking for RCU-sched
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 0836ccc57121..3efc9f3f43a0 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -614,6 +614,7 @@ int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
 		(wait)->private = current;				\
 		(wait)->func = autoremove_wake_function;		\
 		INIT_LIST_HEAD(&(wait)->task_list);			\
+		(wait)->flags = 0;					\
 	} while (0)
 
 /**