Merge commit 'v2.6.29-rc1' into core/urgent

94 files changed, 2823 insertions, 543 deletions

diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index a3323f337e4d..12e9a2957caf 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -371,3 +371,5 @@ unifdef-y += xattr.h
 unifdef-y += xfrm.h
 
 objhdr-y += version.h
+header-y += wimax.h
+header-y += wimax/
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index fba8051fb297..6fce2fc2d124 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -131,22 +131,6 @@ extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
  */
 void acpi_unregister_gsi (u32 gsi);
 
-struct acpi_prt_entry {
-	struct list_head	node;
-	struct acpi_pci_id	id;
-	u8			pin;
-	struct {
-		acpi_handle		handle;
-		u32			index;
-	}			link;
-	u32			irq;
-};
-
-struct acpi_prt_list {
-	int			count;
-	struct list_head	entries;
-};
-
 struct pci_dev;
 
 int acpi_pci_irq_enable (struct pci_dev *dev);
@@ -270,6 +254,7 @@ int acpi_check_mem_region(resource_size_t start, resource_size_t n,
 #ifdef CONFIG_PM_SLEEP
 void __init acpi_no_s4_hw_signature(void);
 void __init acpi_old_suspend_ordering(void);
+void __init acpi_s4_no_nvs(void);
 #endif /* CONFIG_PM_SLEEP */
 #else	/* CONFIG_ACPI */
 
diff --git a/include/linux/async.h b/include/linux/async.h
new file mode 100644
index 000000000000..c4ecacd0b327
--- /dev/null
+++ b/include/linux/async.h
@@ -0,0 +1,25 @@
+/*
+ * async.h: Asynchronous function calls for boot performance
+ *
+ * (C) Copyright 2009 Intel Corporation
+ * Author: Arjan van de Ven <arjan@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/types.h>
+#include <linux/list.h>
+
+typedef u64 async_cookie_t;
+typedef void (async_func_ptr) (void *data, async_cookie_t cookie);
+
+extern async_cookie_t async_schedule(async_func_ptr *ptr, void *data);
+extern async_cookie_t async_schedule_special(async_func_ptr *ptr, void *data, struct list_head *list);
+extern void async_synchronize_full(void);
+extern void async_synchronize_full_special(struct list_head *list);
+extern void async_synchronize_cookie(async_cookie_t cookie);
+extern void async_synchronize_cookie_special(async_cookie_t cookie, struct list_head *list);
+
diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index 0f50d4cc4360..45f6297821bd 100644
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -59,9 +59,7 @@ enum async_tx_flags {
 };
 
 #ifdef CONFIG_DMA_ENGINE
-void async_tx_issue_pending_all(void);
-enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
-void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx);
+#define async_tx_issue_pending_all dma_issue_pending_all
 #ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 #include <asm/async_tx.h>
 #else
@@ -77,19 +75,6 @@ static inline void async_tx_issue_pending_all(void)
 	do { } while (0);
 }
 
-static inline enum dma_status
-dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
-{
-	return DMA_SUCCESS;
-}
-
-static inline void
-async_tx_run_dependencies(struct dma_async_tx_descriptor *tx,
-	struct dma_chan *host_chan)
-{
-	do { } while (0);
-}
-
 static inline struct dma_chan *
 async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
 	enum dma_transaction_type tx_type, struct page **dst, int dst_count,
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 2a2213eefd85..2f1f95737acb 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -3,7 +3,7 @@
 
 #define ATMEL_MCI_MAX_NR_SLOTS	2
 
-struct dma_slave;
+#include <linux/dw_dmac.h>
 
 /**
  * struct mci_slot_pdata - board-specific per-slot configuration
@@ -28,11 +28,11 @@ struct mci_slot_pdata {
 
 /**
  * struct mci_platform_data - board-specific MMC/SDcard configuration
- * @dma_slave: DMA slave interface to use in data transfers, or NULL.
+ * @dma_slave: DMA slave interface to use in data transfers.
  * @slot: Per-slot configuration data.
  */
 struct mci_platform_data {
-	struct dma_slave	*dma_slave;
+	struct dw_dma_slave	dma_slave;
 	struct mci_slot_pdata	slot[ATMEL_MCI_MAX_NR_SLOTS];
 };
 
diff --git a/include/linux/auxvec.h b/include/linux/auxvec.h
index d7afa9dd6635..f3b5d4e3a2ac 100644
--- a/include/linux/auxvec.h
+++ b/include/linux/auxvec.h
@@ -23,16 +23,16 @@
 #define AT_PLATFORM 15  /* string identifying CPU for optimizations */
 #define AT_HWCAP  16    /* arch dependent hints at CPU capabilities */
 #define AT_CLKTCK 17	/* frequency at which times() increments */
-
+/* AT_* values 18 through 22 are reserved */
 #define AT_SECURE 23   /* secure mode boolean */
-
 #define AT_BASE_PLATFORM 24	/* string identifying real platform, may
 				 * differ from AT_PLATFORM. */
+#define AT_RANDOM 25	/* address of 16 random bytes */
 
 #define AT_EXECFN  31	/* filename of program */
 
 #ifdef __KERNEL__
-#define AT_VECTOR_SIZE_BASE 18 /* NEW_AUX_ENT entries in auxiliary table */
+#define AT_VECTOR_SIZE_BASE 19 /* NEW_AUX_ENT entries in auxiliary table */
   /* number of "#define AT_.*" above, minus {AT_NULL, AT_IGNORE, AT_NOTELF} */
 #endif
 
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 1ee9488ca2e4..79ca2da81c87 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -31,6 +31,10 @@ struct backlight_device;
 struct fb_info;
 
 struct backlight_ops {
+	unsigned int options;
+
+#define BL_CORE_SUSPENDRESUME	(1 << 0)
+
 	/* Notify the backlight driver some property has changed */
 	int (*update_status)(struct backlight_device *);
 	/* Return the current backlight brightness (accounting for power,
@@ -51,7 +55,19 @@ struct backlight_properties {
 	   modes; 4: full off), see FB_BLANK_XXX */
 	int power;
 	/* FB Blanking active? (values as for power) */
+	/* Due to be removed, please use (state & BL_CORE_FBBLANK) */
 	int fb_blank;
+	/* Flags used to signal drivers of state changes */
+	/* Upper 4 bits are reserved for driver internal use */
+	unsigned int state;
+
+#define BL_CORE_SUSPENDED	(1 << 0)	/* backlight is suspended */
+#define BL_CORE_FBBLANK		(1 << 1)	/* backlight is under an fb blank event */
+#define BL_CORE_DRIVER4		(1 << 28)	/* reserved for driver specific use */
+#define BL_CORE_DRIVER3		(1 << 29)	/* reserved for driver specific use */
+#define BL_CORE_DRIVER2		(1 << 30)	/* reserved for driver specific use */
+#define BL_CORE_DRIVER1		(1 << 31)	/* reserved for driver specific use */
+
 };
 
 struct backlight_device {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 7035cec583b6..044467ef7b11 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -690,6 +690,8 @@ struct rq_map_data {
 	struct page **pages;
 	int page_order;
 	int nr_entries;
+	unsigned long offset;
+	int null_mapped;
 };
 
 struct req_iterator {
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 8605f8a74df9..bd7ac793be19 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -171,7 +171,7 @@ void __wait_on_buffer(struct buffer_head *);
 wait_queue_head_t *bh_waitq_head(struct buffer_head *bh);
 int fsync_bdev(struct block_device *);
 struct super_block *freeze_bdev(struct block_device *);
-void thaw_bdev(struct block_device *, struct super_block *);
+int thaw_bdev(struct block_device *, struct super_block *);
 int fsync_super(struct super_block *);
 int fsync_no_super(struct block_device *);
 struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block,
@@ -346,6 +346,15 @@ static inline int remove_inode_buffers(struct inode *inode) { return 1; }
 static inline int sync_mapping_buffers(struct address_space *mapping) { return 0; }
 static inline void invalidate_bdev(struct block_device *bdev) {}
 
+static inline struct super_block *freeze_bdev(struct block_device *sb)
+{
+	return NULL;
+}
+
+static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)
+{
+	return 0;
+}
 
 #endif /* CONFIG_BLOCK */
 #endif /* _LINUX_BUFFER_HEAD_H */
diff --git a/include/linux/can/core.h b/include/linux/can/core.h
index f50785ad4781..25085cbadcfc 100644
--- a/include/linux/can/core.h
+++ b/include/linux/can/core.h
@@ -19,7 +19,7 @@
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 
-#define CAN_VERSION "20081130"
+#define CAN_VERSION "20090105"
 
 /* increment this number each time you change some user-space interface */
 #define CAN_ABI_VERSION "8"
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 08b78c09b09a..e267e62827bb 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -52,9 +52,9 @@ struct cgroup_subsys_state {
 	 * hierarchy structure */
 	struct cgroup *cgroup;
 
-	/* State maintained by the cgroup system to allow
-	 * subsystems to be "busy". Should be accessed via css_get()
-	 * and css_put() */
+	/* State maintained by the cgroup system to allow subsystems
+	 * to be "busy". Should be accessed via css_get(),
+	 * css_tryget() and and css_put(). */
 
 	atomic_t refcnt;
 
@@ -64,11 +64,14 @@ struct cgroup_subsys_state {
 /* bits in struct cgroup_subsys_state flags field */
 enum {
 	CSS_ROOT, /* This CSS is the root of the subsystem */
+	CSS_REMOVED, /* This CSS is dead */
 };
 
 /*
- * Call css_get() to hold a reference on the cgroup;
- *
+ * Call css_get() to hold a reference on the css; it can be used
+ * for a reference obtained via:
+ * - an existing ref-counted reference to the css
+ * - task->cgroups for a locked task
  */
 
 static inline void css_get(struct cgroup_subsys_state *css)
@@ -77,9 +80,32 @@ static inline void css_get(struct cgroup_subsys_state *css)
 	if (!test_bit(CSS_ROOT, &css->flags))
 		atomic_inc(&css->refcnt);
 }
+
+static inline bool css_is_removed(struct cgroup_subsys_state *css)
+{
+	return test_bit(CSS_REMOVED, &css->flags);
+}
+
+/*
+ * Call css_tryget() to take a reference on a css if your existing
+ * (known-valid) reference isn't already ref-counted. Returns false if
+ * the css has been destroyed.
+ */
+
+static inline bool css_tryget(struct cgroup_subsys_state *css)
+{
+	if (test_bit(CSS_ROOT, &css->flags))
+		return true;
+	while (!atomic_inc_not_zero(&css->refcnt)) {
+		if (test_bit(CSS_REMOVED, &css->flags))
+			return false;
+	}
+	return tr