Merge branch 'master'

38 files changed, 529 insertions, 251 deletions

diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index bb9e54322322..75e91f5b6a04 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -19,20 +19,25 @@ struct fb_info;
 struct backlight_properties {
         /* Owner module */
         struct module *owner;
-        /* Get the backlight power status (0: full on, 1..3: power saving
-           modes; 4: full off), see FB_BLANK_XXX */
-        int (*get_power)(struct backlight_device *);
-        /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */
-        int (*set_power)(struct backlight_device *, int power);
-        /* Maximal value for brightness (read-only) */
-        int max_brightness;
-        /* Get current backlight brightness */
+
+        /* Notify the backlight driver some property has changed */
+        int (*update_status)(struct backlight_device *);
+        /* Return the current backlight brightness (accounting for power,
+           fb_blank etc.) */
         int (*get_brightness)(struct backlight_device *);
-        /* Set backlight brightness (0..max_brightness) */
-        int (*set_brightness)(struct backlight_device *, int brightness);
         /* Check if given framebuffer device is the one bound to this backlight;
            return 0 if not, !=0 if it is. If NULL, backlight always matches the fb. */
         int (*check_fb)(struct fb_info *);
+
+        /* Current User requested brightness (0 - max_brightness) */
+        int brightness;
+        /* Maximal value for brightness (read-only) */
+        int max_brightness;
+        /* Current FB Power mode (0: full on, 1..3: power saving
+           modes; 4: full off), see FB_BLANK_XXX */
+        int power;
+        /* FB Blanking active? (values as for power) */
+        int fb_blank;
 };
 
 struct backlight_device {
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index d10bd30c337e..836325ee0931 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -275,6 +275,7 @@ extern void d_move(struct dentry *, struct dentry *);
 /* appendix may either be NULL or be used for transname suffixes */
 extern struct dentry * d_lookup(struct dentry *, struct qstr *);
 extern struct dentry * __d_lookup(struct dentry *, struct qstr *);
+extern struct dentry * d_hash_and_lookup(struct dentry *, struct qstr *);
 
 /* validate "insecure" dentry pointer */
 extern int d_validate(struct dentry *, struct dentry *);
diff --git a/include/linux/fadvise.h b/include/linux/fadvise.h
index b2913bba35d8..e8e747139b9a 100644
--- a/include/linux/fadvise.h
+++ b/include/linux/fadvise.h
@@ -18,10 +18,4 @@
 #define POSIX_FADV_NOREUSE      5 /* Data will be accessed once.  */
 #endif
 
-/*
- * Linux-specific fadvise() extensions:
- */
-#define LINUX_FADV_ASYNC_WRITE  32      /* Start writeout on range */
-#define LINUX_FADV_WRITE_WAIT   33      /* Wait upon writeout to range */
-
 #endif  /* FADVISE_H_INCLUDED */
diff --git a/include/linux/fb.h b/include/linux/fb.h
index d03fadfcafe3..315d89740ddf 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -839,12 +839,10 @@ struct fb_info {
 #define FB_LEFT_POS(bpp)          (32 - bpp)
 #define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
 #define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
-#define FB_BIT_NR(b)              (7 - (b))
 #else
 #define FB_LEFT_POS(bpp)          (0)
 #define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
 #define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
-#define FB_BIT_NR(b)              (b)
 #endif
 
     /*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e5ce62e9676d..16be62041bfe 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -757,6 +757,13 @@ extern void send_sigio(struct fown_struct *fown, int fd, int band);
 extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg);
 extern int fcntl_getlease(struct file *filp);
 
+/* fs/sync.c */
+#define SYNC_FILE_RANGE_WAIT_BEFORE     1
+#define SYNC_FILE_RANGE_WRITE           2
+#define SYNC_FILE_RANGE_WAIT_AFTER      4
+extern int do_sync_file_range(struct file *file, loff_t offset, loff_t endbyte,
+                        int flags);
+
 /* fs/locks.c */
 extern void locks_init_lock(struct file_lock *);
 extern void locks_copy_lock(struct file_lock *, struct file_lock *);
@@ -857,7 +864,7 @@ struct super_block {
          */
         struct mutex s_vfs_rename_mutex;        /* Kludge */
 
-        /* Granuality of c/m/atime in ns.
+        /* Granularity of c/m/atime in ns.
            Cannot be worse than a second */
         u32                s_time_gran;
 };
@@ -1416,6 +1423,7 @@ extern void bd_release_from_disk(struct block_device *, struct gendisk *);
 #endif
 
 /* fs/char_dev.c */
+#define CHRDEV_MAJOR_HASH_SIZE  255
 extern int alloc_chrdev_region(dev_t *, unsigned, unsigned, const char *);
 extern int register_chrdev_region(dev_t, unsigned, const char *);
 extern int register_chrdev(unsigned int, const char *,
@@ -1423,25 +1431,17 @@ extern int register_chrdev(unsigned int, const char *,
 extern int unregister_chrdev(unsigned int, const char *);
 extern void unregister_chrdev_region(dev_t, unsigned);
 extern int chrdev_open(struct inode *, struct file *);
-extern int get_chrdev_list(char *);
-extern void *acquire_chrdev_list(void);
-extern int count_chrdev_list(void);
-extern void *get_next_chrdev(void *);
-extern int get_chrdev_info(void *, int *, char **);
-extern void release_chrdev_list(void *);
+extern void chrdev_show(struct seq_file *,off_t);
 
 /* fs/block_dev.c */
+#define BLKDEV_MAJOR_HASH_SIZE  255
 #define BDEVNAME_SIZE   32      /* Largest string for a blockdev identifier */
 extern const char *__bdevname(dev_t, char *buffer);
 extern const char *bdevname(struct block_device *bdev, char *buffer);
 extern struct block_device *lookup_bdev(const char *);
 extern struct block_device *open_bdev_excl(const char *, int, void *);
 extern void close_bdev_excl(struct block_device *);
-extern void *acquire_blkdev_list(void);
-extern int count_blkdev_list(void);
-extern void *get_next_blkdev(void *);
-extern int get_blkdev_info(void *, int *, char **);
-extern void release_blkdev_list(void *);
+extern void blkdev_show(struct seq_file *,off_t);
 
 extern void init_special_inode(struct inode *, umode_t, dev_t);
 
diff --git a/include/linux/gameport.h b/include/linux/gameport.h
index 9c8e6da2393b..71e7b2847cb3 100644
--- a/include/linux/gameport.h
+++ b/include/linux/gameport.h
@@ -11,6 +11,7 @@
 
 #include <asm/io.h>
 #include <linux/list.h>
+#include <linux/mutex.h>
 #include <linux/device.h>
 #include <linux/timer.h>
 
@@ -40,7 +41,7 @@ struct gameport {
         struct gameport *parent, *child;
 
         struct gameport_driver *drv;
-        struct semaphore drv_sem;       /* protects serio->drv so attributes can pin driver */
+        struct mutex drv_mutex;         /* protects serio->drv so attributes can pin driver */
 
         struct device dev;
         unsigned int registered;        /* port has been fully registered with driver core */
@@ -137,12 +138,12 @@ static inline void gameport_set_drvdata(struct gameport *gameport, void *data)
  */
 static inline int gameport_pin_driver(struct gameport *gameport)
 {
-        return down_interruptible(&gameport->drv_sem);
+        return mutex_lock_interruptible(&gameport->drv_mutex);
 }
 
 static inline void gameport_unpin_driver(struct gameport *gameport)
 {
-        up(&gameport->drv_sem);
+        mutex_unlock(&gameport->drv_mutex);
 }
 
 void __gameport_register_driver(struct gameport_driver *drv, struct module *owner);
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 93830158348e..306acf1dc6d5 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -58,6 +58,19 @@ struct hrtimer {
 };
 
 /**
+ * struct hrtimer_sleeper - simple sleeper structure
+ *
+ * @timer:      embedded timer structure
+ * @task:       task to wake up
+ *
+ * task is set to NULL, when the timer expires.
+ */
+struct hrtimer_sleeper {
+        struct hrtimer timer;
+        struct task_struct *task;
+};
+
+/**
  * struct hrtimer_base - the timer base for a specific clock
  *
  * @index:              clock type index for per_cpu support when moving a timer
@@ -67,7 +80,7 @@ struct hrtimer {
  * @first:              pointer to the timer node which expires first
  * @resolution:         the resolution of the clock, in nanoseconds
  * @get_time:           function to retrieve the current time of the clock
- * @get_sofirq_time:    function to retrieve the current time from the softirq
+ * @get_softirq_time:   function to retrieve the current time from the softirq
  * @curr_timer:         the timer which is executing a callback right now
  * @softirq_time:       the time when running the hrtimer queue in the softirq
  */
@@ -127,6 +140,9 @@ extern long hrtimer_nanosleep(struct timespec *rqtp,
                               const enum hrtimer_mode mode,
                               const clockid_t clockid);
 
+extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl,
+                                 struct task_struct *tsk);
+
 /* Soft interrupt function to run the hrtimer queues: */
 extern void hrtimer_run_queues(void);
 
diff --git a/include/linux/input.h b/include/linux/input.h
index 1d4e341b72e6..b0e612dda0cf 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -421,7 +421,7 @@ struct input_absinfo {
 #define BTN_GEAR_UP             0x151
 
 #define KEY_OK                  0x160
-#define KEY_SELECT              0x161
+#define KEY_SELECT              0x161
 #define KEY_GOTO                0x162
 #define KEY_CLEAR               0x163
 #define KEY_POWER2              0x164
@@ -512,6 +512,15 @@ struct input_absinfo {
 #define KEY_FN_S                0x1e3
 #define KEY_FN_B                0x1e4
 
+#define KEY_BRL_DOT1            0x1f1
+#define KEY_BRL_DOT2            0x1f2
+#define KEY_BRL_DOT3            0x1f3
+#define KEY_BRL_DOT4            0x1f4
+#define KEY_BRL_DOT5            0x1f5
+#define KEY_BRL_DOT6            0x1f6
+#define KEY_BRL_DOT7            0x1f7
+#define KEY_BRL_DOT8            0x1f8
+
 /* We avoid low common keys in module aliases so they don't get huge. */
 #define KEY_MIN_INTERESTING     KEY_MUTE
 #define KEY_MAX                 0x1ff
@@ -929,7 +938,7 @@ struct input_dev {
 
         struct input_handle *grab;
 
-        struct semaphore sem;   /* serializes open and close operations */
+        struct mutex mutex;     /* serializes open and close operations */
         unsigned int users;
 
         struct class_device cdev;
@@ -995,11 +1004,6 @@ static inline void init_input_dev(struct input_dev *dev)
 
 struct input_dev *input_allocate_device(void);
 
-static inline void input_free_device(struct input_dev *dev)
-{
-        kfree(dev);
-}
-
 static inline struct input_dev *input_get_device(struct input_dev *dev)
 {
         return to_input_dev(class_device_get(&dev->cdev));
@@ -1010,6 +1014,11 @@ static inline void input_put_device(struct input_dev *dev)
         class_device_put(&dev->cdev);
 }
 
+static inline void input_free_device(struct input_dev *dev)
+{
+        input_put_device(dev);
+}
+
 int input_register_device(struct input_dev *);
 void input_unregister_device(struct input_dev *);
 
diff --git a/include/linux/ipmi_smi.h b/include/linux/ipmi_smi.h
index 53571288a9fc..6d9c7e4da472 100644
--- a/include/linux/ipmi_smi.h
+++ b/include/linux/ipmi_smi.h
@@ -82,6 +82,13 @@ struct ipmi_smi_handlers
 {
         struct module *owner;
 
+        /* The low-level interface cannot start sending messages to
+           the upper layer until this function is called.  This may
+           not be NULL, the lower layer must take the interface from
+           this call. */
+        int (*start_processing)(void       *send_info,
+                                ipmi_smi_t new_intf);
+
         /* Called to enqueue an SMI message to be sent.  This
            operation is not allowed to fail.  If an error occurs, it
            should report back the error in a received message.  It may
@@ -157,13 +164,16 @@ static inline void ipmi_demangle_device_id(unsigned char *data,
 }
 
 /* Add a low-level interface to the IPMI driver.  Note that if the
-   interface doesn't know its slave address, it should pass in zero. */
+   interface doesn't know its slave address, it should pass in zero.
+   The low-level interface should not deliver any messages to the
+   upper layer until the start_processing() function in the handlers
+   is called, and the lower layer must get the interface from that
+   call. */
 int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
                       void                     *send_info,
                       struct ipmi_device_id    *device_id,
                       struct device            *dev,
-                      unsigned char            slave_addr,
-                      ipmi_smi_t               *intf);
+                      unsigned char            slave_addr);
 
 /*
  * Remove a low-level interface from the IPMI driver.  This will
diff --git a/include/linux/kbd_kern.h b/include/linux/kbd_kern.h
index e87c32a5c86a..4eb851ece080 100644
--- a/include/linux/kbd_kern.h
+++ b/include/linux/kbd_kern.h
@@ -135,6 +135,8 @@ static inline void chg_vc_kbd_led(struct kbd_struct * kbd, int flag)
 
 #define U(x) ((x) ^ 0xf000)
 
+#define BRL_UC_ROW 0x2800
+
 /* keyboard.c */
 
 struct console;
diff --git a/include/linux/keyboard.h b/include/linux/keyboard.h
index 08488042d74a..de76843bbe8a 100644
--- a/include/linux/keyboard.h
+++ b/include/linux/keyboard.h
@@ -44,6 +44,7 @@ extern unsigned short plain_map[NR_KEYS];
 #define KT_ASCII        9
 #define KT_LOCK         10
 #define KT_SLOCK        12
+#define KT_BRL          14
 
 #define K(t,v)          (((t)<<8)|(v))
 #define KTYP(x)         ((x) >> 8)
@@ -427,5 +428,17 @@ extern unsigned short plain_map[NR_KEYS];
 
 #define NR_LOCK         8
 
+#define K_BRL_BLANK     K(KT_BRL, 0)
+#define K_BRL_DOT1      K(KT_BRL, 1)
+#define K_BRL_DOT2      K(KT_BRL, 2)
+#define K_BRL_DOT3      K(KT_BRL, 3)
+#define K_BRL_DOT4      K(KT_BRL, 4)
+#define K_BRL_DOT5      K(KT_BRL, 5)
+#define K_BRL_DOT6      K(KT_BRL, 6)
+#define K_BRL_DOT7      K(KT_BRL, 7)
+#define K_BRL_DOT8      K(KT_BRL, 8)
+
+#define NR_BRL          9
+
 #define MAX_DIACR       256
 #endif
diff --git a/include/linux/leds.h b/include/linux/leds.h
new file mode 100644
index 000000000000..4617e75903b0
--- /dev/null
+++ b/include/linux/leds.h
@@ -0,0 +1,111 @@
+/*
+ * Driver model for leds and led triggers
+ *
+ * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
+ * Copyright (C) 2005 Richard Purdie <rpurdie@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#ifndef __LINUX_LEDS_H_INCLUDED
+#define __LINUX_LEDS_H_INCLUDED
+
+struct device;
+struct class_device;
+/*
+ * LED Core
+ */
+
+enum led_brightness {
+        LED_OFF = 0,
+        LED_HALF = 127,
+        LED_FULL = 255,
+};
+
+struct led_classdev {
+        const char *name;
+        int brightness;
+        int flags;
+#define LED_SUSPENDED       (1 << 0)
+
+        /* A function to set the brightness of the led */
+        void (*brightness_set)(struct led_classdev *led_cdev,
+                                enum led_brightness brightness);
+
+        struct class_device *class_dev;
+        /* LED Device linked list */
+        struct list_head node;
+
+        /* Trigger data */
+        char *default_trigger;
+#ifdef CONFIG_LEDS_TRIGGERS
+        rwlock_t trigger_lock;
+        /* Protects the trigger data below */
+
+        struct led_trigger *trigger;
+        struct list_head trig_list;
+        void *trigger_data;
+#endif
+};
+
+extern int led_classdev_register(struct device *parent,
+                                struct led_classdev *led_cdev);
+extern void led_classdev_unregister(struct led_classdev *led_cdev);
+extern void led_classdev_suspend(struct led_classdev *led_cdev);
+extern void led_classdev_resume(struct led_classdev *led_cdev);
+
+/*
+ * LED Triggers
+ */
+#ifdef CONFIG_LEDS_TRIGGERS
+
+#define TRIG_NAME_MAX 50
+
+struct led_trigger {
+        /* Trigger Properties */
+        const char *name;
+        void (*activate)(struct led_classdev *led_cdev);
+        void (*deactivate)(struct led_classdev *led_cdev);
+
+        /* LEDs under control by this trigger (for simple triggers) */
+        rwlock_t leddev_list_lock;
+        struct list_head led_cdevs;
+
+        /* Link to next registered trigger */
+        struct list_head next_trig;
+};
+
+/* Registration functions for complex triggers */
+extern int led_trigger_register(struct led_trigger *trigger);
+extern void led_trigger_unregister(struct led_trigger *trigger);
+
+/* Registration functions for simple triggers */
+#define DEFINE_LED_TRIGGER(x)           static struct led_trigger *x;
+#define DEFINE_LED_TRIGGER_GLOBAL(x)    struct led_trigger *x;
+extern void led_trigger_register_simple(const char *name,
+                                struct led_trigger **trigger);
+extern void led_trigger_unregister_simple(struct led_trigger *trigger);
+extern void led_trigger_event(struct led_trigger *trigger,
+                                enum led_brightness event);
+
+#else
+
+/* Triggers aren't active - null macros */
+#define DEFINE_LED_TRIGGER(x)
+#define DEFINE_LED_TRIGGER_GLOBAL(x)
+#define led_trigger_register_simple(x, y) do {} while(0)
+#define led_trigger_unregister_simple(x) do {} while(0)
+#define led_trigger_event(x, y) do {} while(0)
+
+#endif
+
+/* Trigger specific functions */
+#ifdef CONFIG_LEDS_TRIGGER_IDE_DISK
+extern void ledtrig_ide_activity(void);
+#else
+#define ledtrig_ide_activity() do {} while(0)
+#endif
+
+#endif          /* __LINUX_LEDS_H_INCLUDED */
diff --git a/include/linux/libps2.h b/include/linux/libps2.h
index a710bddda4eb..08a450a9dbf7 100644
--- a/include/linux/libps2.h
+++ b/include/linux/libps2.h
@@ -28,7 +28,7 @@ struct ps2dev {
         struct serio *serio;
 
         /* Ensures that only one command is executing at a time */
-        struct semaphore cmd_sem;
+        struct mutex cmd_mutex;
 
         /* Used to signal completion from interrupt handler */
         wait_queue_head_t wait;
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 7d09962c3c0b..ff0a64073ebc 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -12,7 +12,7 @@ extern void migrate_page_copy(struct page *, struct page *);
 extern int migrate_page_remove_references(struct page *, struct page *, int);
 extern int migrate_pages(struct list_head *l, struct list_head *t,
                 struct list_head *moved, struct list_head *failed);
-int migrate_pages_to(struct list_head *pagelist,
+extern int migrate_pages_to(struct list_head *pagelist,
                         struct vm_area_struct *vma, int dest);
 extern int fail_migrate_page(struct page *, struct page *);
 
@@ -26,6 +26,9 @@ static inline int putback_lru_pages(struct list_head *l) { return 0; }
 static inline int migrate_pages(struct list_head *l, struct list_head *t,
         struct list_head *moved, struct list_head *failed) { return -ENOSYS; }
 
+static inline int migrate_pages_to(struct list_head *pagelist,
+                        struct vm_area_struct *vma, int dest) { return 0; }
+
 static inline int migrate_prep(void) { return -ENOSYS; }
 
 /* Possible settings for the migrate_page() method in address_operations */
diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h
index f46afec6fbf8..72fc68c5ee96 100644
--- a/include/linux/mtd/blktrans.h
+++ b/include/linux/mtd/blktrans.h
@@ -10,7 +10,7 @@
 #ifndef __MTD_TRANS_H__
 #define __MTD_TRANS_H__
 
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 struct hd_geometry;
 struct mtd_info;
@@ -22,7 +22,7 @@ struct mtd_blktrans_dev {
         struct mtd_blktrans_ops *tr;
         struct list_head list;
         struct mtd_info *mtd;
-        struct semaphore sem;
+        struct mutex lock;
         int devnum;
         int blksize;
         unsigned long size;
diff --git a/include/linux/mtd/doc2000.h b/include/linux/mtd/doc2000.h
index 386a52cf8b1b..9addd073bf15 100644
--- a/include/linux/mtd/doc2000.h
+++ b/include/linux/mtd/doc2000.h
@@ -15,7 +15,7 @@
 #define __MTD_DOC2000_H__
 
 #include <linux/mtd/mtd.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #define DoC_Sig1 0
 #define DoC_Sig2 1
@@ -187,7 +187,7 @@ struct DiskOnChip {
         int numchips;
         struct Nand *chips;
         struct mtd_info *nextdoc;
-        struct semaphore lock;
+        struct mutex lock;
 };
 
 int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
diff --git a/include/linux/mtd/inftl.h b/include/linux/mtd/inftl.h
index 0268125a6271..d7eaa40e5ab0 100644
--- a/include/linux/mtd/inftl.h
+++ b/include/linux/mtd/inftl.h
@@ -52,6 +52,11 @@ struct INFTLrecord {
 int INFTL_mount(struct INFTLrecord *s);
 int INFTL_formatblock(struct INFTLrecord *s, int block);
 
+extern char inftlmountrev[];
+
+void INFTL_dumptables(struct INFTLrecord *s);
+void INFTL_dumpVUchains(struct INFTLrecord *s);
+
 #endif /* __KERNEL__ */
 
 #endif /* __MTD_INFTL_H__ */
diff --git a/include/linux/namei.h b/include/linux/namei.h
index e6698013e4d0..58cb3d3d44b4 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -75,7 +75,6 @@ extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
 extern void release_open_intent(struct nameidata *);
 
 extern struct dentry * lookup_one_len(const char *, struct dentry *, int);
-extern __deprecated_for_modules struct dentry * lookup_hash(struct nameidata *);
 
 extern int follow_down(struct vfsmount **, struct dentry **);
 extern int follow_up(struct vfsmount **, struct dentry **);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 950dc55e5192..40ccf8cc4239 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -598,20 +598,7 @@ DECLARE_PER_CPU(struct softnet_data,softnet_data);
 
 #define HAVE_NETIF_QUEUE
 
-static inline void __netif_schedule(struct net_device *dev)
-{
-        if (!test_and_set_bit(__LINK_STATE_SCHED, &dev->state)) {
-                unsigned long flags;
-                struct softnet_data *sd;
-
-                local_irq_save(flags);
-                sd = &__get_cpu_var(softnet_data);
-                dev->next_sched = sd->output_queue;
-                sd->output_queue = dev;
-                raise_softirq_irqoff(NET_TX_SOFTIRQ);
-                local_irq_restore(flags);
-        }
-}
+extern void __netif_schedule(struct net_device *dev);
 
 static inline void netif_schedule(struct net_device *dev)
 {
@@ -675,13 +662,7 @@ static inline void dev_kfree_skb_irq(struct sk_buff *skb)
 /* Use this variant in places where it could be invoked
  * either from interrupt or non-interrupt context.
  */
-static inline void dev_kfree_skb_any(struct sk_buff *skb)
-{
-        if (in_irq() || irqs_disabled())
-                dev_kfree_skb_irq(skb);
-        else
-                dev_kfree_skb(skb);
-}
+extern void dev_kfree_skb_any(struct sk_buff *skb);
 
 #define HAVE_NETIF_RX 1
 extern int              netif_rx(struct sk_buff *skb);
@@ -768,22 +749,9 @@ static inline int netif_device_present(struct net_device *dev)
         return test_bit(__LINK_STATE_PRESENT, &dev->state);
 }
 
-static inline void netif_device_detach(struct net_device *dev)
-{
-        if (test_and_clear_bit(__LINK_STATE_PRESENT, &dev->state) &&
-            netif_running(dev)) {
-                netif_stop_queue(dev);
-        }
-}
+extern void netif_device_detach(struct net_device *dev);
 
-static inline void netif_device_attach(struct net_device *dev)
-{
-        if (!test_and_set_bit(__LINK_STATE_PRESENT, &dev->state) &&
-            netif_running(dev)) {
-                netif_wake_queue(dev);
-                __netdev_watchdog_up(dev);
-        }
-}
+extern void netif_device_attach(struct net_device *dev);
 
 /*
  * Network interface message level settings
@@ -851,20 +819,7 @@ static inline int netif_rx_schedule_prep(struct net_device *dev)
  * already been called and returned 1.
  */
 
-static inline void __netif_rx_schedule(struct net_device *dev)
-{
-        unsigned long flags;
-
-        local_irq_save(flags);
-        dev_hold(dev);
-        list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
-        if (dev->quota < 0)
-                dev->quota += dev->weight;
-        else
-                dev->quota = dev->weight;
-        __raise_softirq_irqoff(NET_RX_SOFTIRQ);
-        local_irq_restore(flags);
-}
+extern void __netif_rx_schedule(struct net_device *dev);
 
 /* Try to reschedule poll. Called by irq handler. */
 
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 1350e47b0234..f6bdef82a322 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -142,6 +142,12 @@ struct xt_counters_info
 #define ASSERT_WRITE_LOCK(x)
 #include <linux/netfilter_ipv4/listhelp.h>
 
+#ifdef CONFIG_COMPAT
+#define COMPAT_TO_USER          1
+#define COMPAT_FROM_USER        -1
+#define COMPAT_CALC_SIZE        0
+#endif
+
 struct xt_match
 {
         struct list_head list;
@@ -175,6 +181,9 @@ struct xt_match
         void (*destroy)(const struct xt_match *match, void *matchinfo,
                         unsigned int matchinfosize);
 
+        /* Called when userspace align differs from kernel space one */
+        int (*compat)(void *match, void **dstptr, int *size, int convert);
+
         /* Set this to THIS_MODULE if you are a module, otherwise NULL */
         struct module *me;
 
@@ -220,6 +229,9 @@ struct xt_target
         void (*destroy)(const struct xt_target *target, void *targinfo,
                         unsigned int targinfosize);
 
+        /* Called when userspace align differs from kernel space one */
+        int (*compat)(void *target, void **dstptr, int *size, int convert);
+
         /* Set this to THIS_MODULE if you are a module, otherwise NULL */
         struct module *me;
 
@@ -314,6 +326,61 @@ extern void xt_proto_fini(int af);
 extern struct xt_table_info *xt_alloc_table_info(unsigned int size);
 extern void xt_free_table_info(struct xt_table_info *info);
 
+#ifdef CONFIG_COMPAT
+#include <net/compat.h>
+
+struct compat_xt_entry_match
+{
+        union {
+                struct {
+                        u_int16_t match_size;
+                        char name[XT_FUNCTION_MAXNAMELEN - 1];
+                        u_int8_t revision;
+                } user;
+                u_int16_t match_size;
+        } u;
+        unsigned char data[0];
+};
+
+struct compat_xt_entry_target
+{
+        union {
+                struct {
+                        u_int16_t target_size;
+                        char name[XT_FUNCTION_MAXNAMELEN - 1];
+                        u_int8_t revision;
+                } user;
+                u_int16_t target_size;
+        } u;
+        unsigned char data[0];
+};
+
+/* FIXME: this works only on 32 bit tasks
+ * need to change whole approach in order to calculate align as function of
+ * current task alignment */
+
+struct compat_xt_counters
+{
+        u_int32_t cnt[4];
+};
+
+struct compat_xt_counters_info
+{
+        char name[XT_TABLE_MAXNAMELEN];
+        compat_uint_t num_counters;
+        struct compat_xt_counters counters[0];
+};
+
+#define COMPAT_XT_ALIGN(s) (((s) + (__alignof__(struct compat_xt_counters)-1)) \
+                & ~(__alignof__(struct compat_xt_counters)-1))
+
+extern void xt_compat_lock(int af);
+extern void xt_compat_unlock(int af);
+extern int xt_compat_match(void *match, void **dstptr, int *size, int convert);
+extern int xt_compat_target(void *target, void **dstptr, int *size,
+                int convert);
+
+#endif /* CONFIG_COMPAT */
 #endif /* __KERNEL__ */
 
 #endif /* _X_TABLES_H */
diff --git a/include/linux/netfilter/xt_esp.h b/include/linux/netfilter/xt_esp.h
new file mode 100644
index 000000000000..9380fb1c27da
--- /dev/null
+++ b/include/linux/netfilter/xt_esp.h
@@ -0,0 +1,14 @@
+#ifndef _XT_ESP_H
+#define _XT_ESP_H
+
+struct xt_esp
+{
+        u_int32_t spis[2];      /* Security Parameter Index */
+        u_int8_t  invflags;     /* Inverse flags */
+};
+
+/* Values for "invflags" field in struct xt_esp. */
+#define XT_ESP_INV_SPI  0x01    /* Invert the sense of spi. */
+#define XT_ESP_INV_MASK 0x01    /* All possible flags. */
+
+#endif /*_XT_ESP_H*/
diff --git a/include/linux/netfilter/xt_multiport.h b/include/linux/netfilter/xt_multiport.h
new file mode 100644
index 000000000000..d49ee4183710
--- /dev/null
+++ b/include/linux/netfilter/xt_multiport.h
@@ -0,0 +1,30 @@
+#ifndef _XT_MULTIPORT_H
+#define _XT_MULTIPORT_H
+
+enum xt_multiport_flags
+{
+        XT_MULTIPORT_SOURCE,
+        XT_MULTIPORT_DESTINATION,
+        XT_MULTIPORT_EITHER
+};
+
+#define XT_MULTI_PORTS  15
+
+/* Must fit inside union xt_matchinfo: 16 bytes */
+struct xt_multiport
+{
+        u_int8_t flags;                         /* Type of comparison */
+        u_int8_t count;                         /* Number of ports */
+        u_int16_t ports[XT_MULTI_PORTS];        /* Ports */
+};
+
+struct xt_multiport_v1
+{
+        u_int8_t flags;                         /* Type of comparison */
+        u_int8_t count;                         /* Number of ports */
+        u_int16_t ports[XT_MULTI_PORTS];        /* Ports */
+        u_int8_t pflags[XT_MULTI_PORTS];        /* Port flags */
+        u_int8_t invert;                        /* Invert flag */
+};
+
+#endif /*_XT_MULTIPORT_H*/
diff --git a/include/linux/netfilter_ipv4/ip_tables.h b/include/linux/netfilter_ipv4/ip_tables.h
index d5b8c0d6a12b..c0dac16e1902 100644
--- a/include/linux/netfilter_ipv4/ip_tables.h
+++ b/include/linux/netfilter_ipv4/ip_tables.h
@@ -316,5 +316,23 @@ extern unsigned int ipt_do_table(struct sk_buff **pskb,
                                  void *userdata);
 
 #define IPT_ALIGN(s) XT_ALIGN(s)
+
+#ifdef CONFIG_COMPAT
+#include <net/compat.h>
+
+struct compat_ipt_entry
+{
+        struct ipt_ip ip;
+        compat_uint_t nfcache;
+        u_int16_t target_offset;
+        u_int16_t next_offset;
+        compat_uint_t comefrom;
+        struct compat_xt_counters counters;
+        unsigned char elems[0];
+};
+
+#define COMPAT_IPT_ALIGN(s)     COMPAT_XT_ALIGN(s)
+
+#endif /* CONFIG_COMPAT */
 #endif /*__KERNEL__*/
 #endif /* _IPTABLES_H */
diff --git a/include/linux/netfilter_ipv4/ipt_esp.h b/include/linux/netfilter_ipv4/ipt_esp.h
index c782a83e53e0..78296e7eeff9 100644
--- a/include/linux/netfilter_ipv4/ipt_esp.h
+++ b/include/linux/netfilter_ipv4/ipt_esp.h
@@ -1,16 +1,10 @@
 #ifndef _IPT_ESP_H
 #define _IPT_ESP_H
 
-struct ipt_esp
-{
-        u_int32_t spis[2];                      /* Security Parameter Index */
-        u_int8_t  invflags;                     /* Inverse flags */
-};
+#include <linux/netfilter/xt_esp.h>
 
-
-
-/* Values for "invflags" field in struct ipt_esp. */
-#define IPT_ESP_INV_SPI         0x01    /* Invert the sense of spi. */
-#define IPT_ESP_INV_MASK        0x01    /* All possible flags. */
+#define ipt_esp xt_esp
+#define IPT_ESP_INV_SPI         XT_ESP_INV_SPI
+#define IPT_ESP_INV_MASK        XT_ESP_INV_MASK
 
 #endif /*_IPT_ESP_H*/
diff --git a/include/linux/netfilter_ipv4/ipt_multiport.h b/include/linux/netfilter_ipv4/ipt_multiport.h
index e6b6fff811df..55fe85eca88c 100644
--- a/include/linux/netfilter_ipv4/ipt_multiport.h
+++ b/include/linux/netfilter_ipv4/ipt_multiport.h
@@ -1,30 +1,15 @@
 #ifndef _IPT_MULTIPORT_H
 #define _IPT_MULTIPORT_H
-#include <linux/netfilter_ipv4/ip_tables.h>
 
-enum ipt_multiport_flags
-{
-        IPT_MULTIPORT_SOURCE,
-        IPT_MULTIPORT_DESTINATION,
-        IPT_MULTIPORT_EITHER
-};
+#include <linux/netfilter/xt_multiport.h>
 
-#define IPT_MULTI_PORTS 15
+#define IPT_MULTIPORT_SOURCE            XT_MULTIPORT_SOURCE
+#define IPT_MULTIPORT_DESTINATION       XT_MULTIPORT_DESTINATION
+#define IPT_MULTIPORT_EITHER            XT_MULTIPORT_EITHER
 
-/* Must fit inside union ipt_matchinfo: 16 bytes */
-struct ipt_multiport
-{
-        u_int8_t flags;                         /* Type of comparison */
-        u_int8_t count;                         /* Number of ports */
-        u_int16_t ports[IPT_MULTI_PORTS];       /* Ports */
-};
+#define IPT_MULTI_PORTS                 XT_MULTI_PORTS
+
+#define ipt_multiport                   xt_multiport
+#define ipt_multiport_v1                xt_multiport_v1
 
-struct ipt_multiport_v1
-{
-        u_int8_t flags;                         /* Type of comparison */
-        u_int8_t count;                         /* Number of ports */
-        u_int16_t ports[IPT_MULTI_PORTS];       /* Ports */
-        u_int8_t pflags[IPT_MULTI_PORTS];       /* Port flags */
-        u_int8_t invert;                        /* Invert flag */
-};
 #endif /*_IPT_MULTIPORT_H*/
diff --git a/include/linux/netfilter_ipv6/ip6t_esp.h b/include/linux/netfilter_ipv6/ip6t_esp.h
index a91b6abc8079..f62eaf53c16c 100644
--- a/include/linux/netfilter_ipv6/ip6t_esp.h
+++ b/include/linux/netfilter_ipv6/ip6t_esp.h
@@ -1,14 +1,10 @@
 #ifndef _IP6T_ESP_H
 #define _IP6T_ESP_H
 
-struct ip6t_esp
-{
-        u_int32_t spis[2];                      /* Security Parameter Index */
-        u_int8_t  invflags;                     /* Inverse flags */
-};
+#include <linux/netfilter/xt_esp.h>
 
-/* Values for "invflags" field in struct ip6t_esp. */
-#define IP6T_ESP_INV_SPI                0x01    /* Invert the sense of spi. */
-#define IP6T_ESP_INV_MASK       0x01    /* All possible flags. */
+#define ip6t_esp xt_esp
+#define IP6T_ESP_INV_SPI        XT_ESP_INV_SPI
+#define IP6T_ESP_INV_MASK       XT_ESP_INV_MASK
 
 #endif /*_IP6T_ESP_H*/
diff --git a/include/linux/netfilter_ipv6/ip6t_multiport.h b/include/linux/netfilter_ipv6/ip6t_multiport.h
index efe4954a8681..042c92661cee 100644
--- a/include/linux/netfilter_ipv6/ip6t_multiport.h
+++ b/include/linux/netfilter_ipv6/ip6t_multiport.h
@@ -1,21 +1,14 @@
 #ifndef _IP6T_MULTIPORT_H
 #define _IP6T_MULTIPORT_H
-#include <linux/netfilter_ipv6/ip6_tables.h>
 
-enum ip6t_multiport_flags
-{
-        IP6T_MULTIPORT_SOURCE,
-        IP6T_MULTIPORT_DESTINATION,
-        IP6T_MULTIPORT_EITHER
-};
+#include <linux/netfilter/xt_multiport.h>
 
-#define IP6T_MULTI_PORTS        15
+#define IP6T_MULTIPORT_SOURCE           XT_MULTIPORT_SOURCE
+#define IP6T_MULTIPORT_DESTINATION      XT_MULTIPORT_DESTINATION
+#define IP6T_MULTIPORT_EITHER           XT_MULTIPORT_EITHER
 
-/* Must fit inside union ip6t_matchinfo: 16 bytes */
-struct ip6t_multiport
-{
-        u_int8_t flags;                         /* Type of comparison */
-        u_int8_t count;                         /* Number of ports */
-        u_int16_t ports[IP6T_MULTI_PORTS];      /* Ports */
-};
-#endif /*_IPT_MULTIPORT_H*/
+#define IP6T_MULTI_PORTS                XT_MULTI_PORTS
+
+#define ip6t_multiport                  xt_multiport
+
+#endif /*_IP6T_MULTIPORT_H*/
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 839f0b3c23aa..9539efd4f7e6 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -72,8 +72,8 @@ extern struct page * find_get_page(struct address_space *mapping,
                                 unsigned long index);
 extern struct page * find_lock_page(struct address_space *mapping,
                                 unsigned long index);
-extern struct page * find_trylock_page(struct address_space *mapping,
-                                unsigned long index);
+extern __deprecated_for_modules struct page * find_trylock_page(
+                        struct address_space *mapping, unsigned long index);
 extern struct page * find_or_create_page(struct address_space *mapping,
                                 unsigned long index, gfp_t gfp_mask);
 unsigned find_get_pages(struct address_space *mapping, pgoff_t start,
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 5b9082cc600f..29960b03bef7 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_PID_H
 #define _LINUX_PID_H
 
+#include <linux/rcupdate.h>
+
 enum pid_type
 {
         PIDTYPE_PID,
@@ -9,45 +11,109 @@ enum pid_type
         PIDTYPE_MAX
 };
 
+/*
+ * What is struct pid?
+ *
+ * A struct pid is the kernel's internal notion of a process identifier.
+ * It refers to individual tasks, process groups, and sessions.  While
+ * there are processes attached to it the struct pid lives in a hash
+ * table, so it and then the processes that it refers to can be found
+ * quickly from the numeric pid value.  The attached processes may be
+ * quickly accessed by following pointers from struct pid.
+ *
+ * Storing pid_t values in the kernel and refering to them later has a
+ * problem.  The process originally with that pid may have exited and the
+ * pid allocator wrapped, and another process could have come along
+ * and been assigned that pid.
+ *
+ * Referring to user space processes by holding a reference to struct
+ * task_struct has a problem.  When the user space process exits
+ * the now useless task_struct is still kept.  A task_struct plus a
+ * stack consumes around 10K of low kernel memory.  More precisely
+ * this is THREAD_SIZE + sizeof(struct task_struct).  By comparison
+ * a struct pid is about 64 bytes.
+ *
+ * Holding a reference to struct pid solves both of these problems.
+ * It is small so holding a reference does not consume a lot of
+ * resources, and since a new struct pid is allocated when the numeric
+ * pid value is reused we don't mistakenly refer to new processes.
+ */
+
 struct pid
 {
+        atomic_t count;
         /* Try to keep pid_chain in the same cacheline as nr for find_pid */
         int nr;
         struct hlist_node pid_chain;
-        /* list of pids with the same nr, only one of them is in the hash */
-        struct list_head pid_list;
+        /* lists of tasks that use this pid */
+        struct hlist_head tasks[PIDTYPE_MAX];
+        struct rcu_head rcu;
 };
 
-#define pid_task(elem, type) \
-        list_entry(elem, struct task_struct, pids[type].pid_list)
+struct pid_link
+{
+        struct hlist_node node;
+        struct pid *pid;
+};
+
+static inline struct pid *get_pid(struct pid *pid)
+{
+        if (pid)
+                atomic_inc(&pid->count);
+        return pid;
+}
+
+extern void FASTCALL(put_pid(struct pid *pid));
+extern struct task_struct *FASTCALL(pid_task(struct pid *pid, enum pid_type));
+extern struct task_struct *FASTCALL(get_pid_task(struct pid *pid,
+                                                enum pid_type));
 
 /*
  * attach_pid() and detach_pid() must be called with the tasklist_lock
  * write-held.
  */
-extern int FASTCALL(attach_pid(struct task_struct *task, enum pid_type type, int nr));
+extern int FASTCALL(attach_pid(struct task_struct *task,
+                                enum pid_type type, int nr));
 
 extern void FASTCALL(detach_pid(struct task_struct *task, enum pid_type));
 
 /*
  * look up a PID in the hash table. Must be called with the tasklist_lock
- * held.
+ * or rcu_read_lock() held.
+ */
+extern struct pid *FASTCALL(find_pid(int nr));
+
+/*
+ * Lookup a PID in the hash table, and return with it's count elevated.
  */
-extern struct pid *FASTCALL(find_pid(enum pid_type, int));
+extern struct pid *find_get_pid(int nr);
 
-extern int alloc_pidmap(void);
-extern void FASTCALL(free_pidmap(int));
+extern struct pid *alloc_pid(void);
+extern void FASTCALL(free_pid(struct pid *pid));
 
+#define pid_next(task, type)                                    \
+        ((task)->pids[(type)].node.next)
+
+#define pid_next_task(task, type)                               \
+        hlist_entry(pid_next(task, type), struct task_struct,   \
+                        pids[(type)].node)
+
+
+/* We could use hlist_for_each_entry_rcu here but it takes more arguments
+ * than the do_each_task_pid/while_each_task_pid.  So we roll our own
+ * to preserve the existing interface.
+ */
 #define do_each_task_pid(who, type, task)                               \
         if ((task = find_task_by_pid_type(type, who))) {                \
-                prefetch((task)->pids[type].pid_list.next);             \
+                prefetch(pid_next(task, type));                         \
                 do {
 
 #define while_each_task_pid(who, type, task)                            \
-                } while (task = pid_task((task)->pids[type].pid_list.next,\
-                                                type),                  \
-                        prefetch((task)->pids[type].pid_list.next),     \
-                        hlist_unhashed(&(task)->pids[type].pid_chain)); \
-        }                                                               \
+                } while (pid_next(task, type) &&  ({                    \
+                                task = pid_next_task(task, type);       \
+                                rcu_dereference(task);                  \
+                                prefetch(pid_next(task, type));         \
+                                1; }) );                                \
+        }
 
 #endif /* _LINUX_PID_H */
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 75c7f55023ab..ec384958d509 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -5,11 +5,14 @@
 
 #define PIPE_BUFFERS (16)
 
+#define PIPE_BUF_FLAG_STOLEN    0x01
+#define PIPE_BUF_FLAG_LRU       0x02
+
 struct pipe_buffer {
         struct page *page;
         unsigned int offset, len;
         struct pipe_buf_operations *ops;
-        unsigned int stolen;
+        unsigned int flags;
 };
 
 struct pipe_buf_operations {
@@ -60,5 +63,9 @@ void free_pipe_info(struct inode* inode);
  * add the splice flags here.
  */
 #define SPLICE_F_MOVE   (0x01)  /* move pages instead of copying */
+#define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */
+                                 /* we may still block on the fd we splice */
+                                 /* from/to, of course */
+#define SPLICE_F_MORE   (0x04)  /* expect more data */
 
 #endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d04186d8cc68..541f4828f5e7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -100,6 +100,7 @@ DECLARE_PER_CPU(unsigned long, process_counts);
 extern int nr_processes(void);
 extern unsigned long nr_running(void);
 extern unsigned long nr_uninterruptible(void);
+extern unsigned long nr_active(void);
 extern unsigned long nr_iowait(void);
 
 #include <linux/time.h>
@@ -483,6 +484,7 @@ struct signal_struct {
 #define MAX_PRIO                (MAX_RT_PRIO + 40)
 
 #define rt_task(p)              (unlikely((p)->prio < MAX_RT_PRIO))
+#define batch_task(p)           (unlikely((p)->policy == SCHED_BATCH))
 
 /*
  * Some day this will be a full-fledged user tracking system..
@@ -683,6 +685,13 @@ static inline void prefetch_stack(struct task_struct *t) { }
 struct audit_context;           /* See audit.c */
 struct mempolicy;
 
+enum sleep_type {
+        SLEEP_NORMAL,
+        SLEEP_NONINTERACTIVE,
+        SLEEP_INTERACTIVE,
+        SLEEP_INTERRUPTED,
+};
+
 struct task_struct {
         volatile long state;    /* -1 unrunnable, 0 runnable, >0 stopped */
         struct thread_info *thread_info;
@@ -705,7 +714,7 @@ struct task_struct {
         unsigned long sleep_avg;
         unsigned long long timestamp, last_ran;
         unsigned long long sched_time; /* sched_clock time spent running */
-        int activated;
+        enum sleep_type sleep_type;
 
         unsigned long policy;
         cpumask_t cpus_allowed;
@@ -751,7 +760,7 @@ struct task_struct {
         struct task_struct *group_leader;       /* threadgroup leader */
 
         /* PID/PID hash table linkage. */
-        struct pid pids[PIDTYPE_MAX];
+        struct pid_link pids[PIDTYPE_MAX];
         struct list_head thread_group;
 
         struct completion *vfork_done;          /* for vfork() */
@@ -890,18 +899,19 @@ static inline pid_t process_group(struct task_struct *tsk)
  */
 static inline int pid_alive(struct task_struct *p)
 {
-        return p->pids[PIDTYPE_PID].nr != 0;
+        return p->pids[PIDTYPE_PID].pid != NULL;
 }
 
 extern void free_task(struct task_struct *tsk);
 #define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
 
 extern void __put_task_struct_cb(struct rcu_head *rhp);
+extern void __put_task_struct(struct task_struct *t);
 
 static inline void put_task_struct(struct task_struct *t)
 {
         if (atomic_dec_and_test(&t->usage))
-                call_rcu(&t->rcu, __put_task_struct_cb);
+                __put_task_struct(t);
 }
 
 /*
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 690aabca8ed0..6348e8330897 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -18,6 +18,7 @@
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/device.h>
 #include <linux/mod_devicetable.h>
 
@@ -42,7 +43,7 @@ struct serio {
         struct serio *parent, *child;
 
         struct serio_driver *drv;       /* accessed from interrupt, must be protected by serio->lock and serio->sem */
-        struct semaphore drv_sem;       /* protects serio->drv so attributes can pin driver */
+        struct mutex drv_mutex;         /* protects serio->drv so attributes can pin driver */
 
         struct device dev;
         unsigned int registered;        /* port has been fully registered with driver core */
@@ -151,17 +152,17 @@ static inline void serio_continue_rx(struct serio *serio)
  */
 static inline int serio_pin_driver(struct serio *serio)
 {
-        return down_interruptible(&serio->drv_sem);
+        return mutex_lock_interruptible(&serio->drv_mutex);
 }
 
 static inline void serio_pin_driver_uninterruptible(struct serio *serio)
 {
-        down(&serio->drv_sem);
+        mutex_lock(&serio->drv_mutex);
 }
 
 static inline void serio_unpin_driver(struct serio *serio)
 {
-        up(&serio->drv_sem);
+        mutex_unlock(&serio->drv_mutex);
 }
 
 
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 613b9513f8b9..c4619a428d9b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -941,6 +941,25 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
 #define NET_IP_ALIGN    2
 #endif
 
+/*
+ * The networking layer reserves some headroom in skb data (via
+ * dev_alloc_skb). This is used to avoid having to reallocate skb data when
+ * the header has to grow. In the default case, if the header has to grow
+ * 16 bytes or less we avoid the reallocation.
+ *
+ * Unfortunately this headroom changes the DMA alignment of the resulting
+ * network packet. As for NET_IP_ALIGN, this unaligned DMA is expensive
+ * on some architectures. An architecture can override this value,
+ * perhaps setting it to a cacheline in size (since that will maintain
+ * cacheline alignment of the DMA). It must be a power of 2.
+ *
+ * Various parts of the networking layer expect at least 16 bytes of
+ * headroom, you should not reduce this.
+ */
+#ifndef NET_SKB_PAD
+#define NET_SKB_PAD     16
+#endif
+
 extern int ___pskb_trim(struct sk_buff *skb, unsigned int len, int realloc);
 
 static inline void __skb_trim(struct sk_buff *skb, unsigned int len)
@@ -1030,9 +1049,9 @@ static inline void __skb_queue_purge(struct sk_buff_head *list)
 static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
                                               gfp_t gfp_mask)
 {
-        struct sk_buff *skb = alloc_skb(length + 16, gfp_mask);
+        struct sk_buff *skb = alloc_skb(length + NET_SKB_PAD, gfp_mask);
         if (likely(skb))
-                skb_reserve(skb, 16);
+                skb_reserve(skb, NET_SKB_PAD);
         return skb;
 }
 #else
@@ -1070,13 +1089,15 @@ static inline struct sk_buff *dev_alloc_skb(unsigned int length)
  */
 static inline int skb_cow(struct sk_buff *skb, unsigned int headroom)
 {
-        int delta = (headroom > 16 ? headroom : 16) - skb_headroom(skb);
+        int delta = (headroom > NET_SKB_PAD ? headroom : NET_SKB_PAD) -
+                        skb_headroom(skb);
 
         if (delta < 0)
                 delta = 0;
 
         if (delta || skb_cloned(skb))
-                return pskb_expand_head(skb, (delta + 15) & ~15, 0, GFP_ATOMIC);
+                return pskb_expand_head(skb, (delta + (NET_SKB_PAD-1)) &
+                                ~(NET_SKB_PAD-1), 0, GFP_ATOMIC);
         return 0;
 }
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index e78ffc7d5b56..5717147596b6 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -571,5 +571,7 @@ asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
 asmlinkage long sys_unshare(unsigned long unshare_flags);
 asmlinkage long sys_splice(int fdin, int fdout, size_t len,
                                 unsigned int flags);
+asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
+                                        int flags);
 
 #endif
diff --git a/include/linux/timer.h b/include/linux/timer.h
index b5caabca553c..0a485beba9f5 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -6,7 +6,7 @@
 #include <linux/spinlock.h>
 #include <linux/stddef.h>
 
-struct timer_base_s;
+struct tvec_t_base_s;
 
 struct timer_list {
         struct list_head entry;
@@ -15,16 +15,16 @@ struct timer_list {
         void (*function)(unsigned long);
         unsigned long data;
 
-        struct timer_base_s *base;
+        struct tvec_t_base_s *base;
 };
 
-extern struct timer_base_s __init_timer_base;
+extern struct tvec_t_base_s boot_tvec_bases;
 
 #define TIMER_INITIALIZER(_function, _expires, _data) {         \
                 .function = (_function),                        \
                 .expires = (_expires),                          \
                 .data = (_data),                                \
-                .base = &__init_timer_base,                     \
+                .base = &boot_tvec_bases,                       \
         }
 
 #define DEFINE_TIMER(_name, _function, _expires, _data)         \
diff --git a/include/linux/tiocl.h b/include/linux/tiocl.h
index 2c9e847f6ed1..4756862c4ed4 100644
--- a/include/linux/tiocl.h
+++ b/include/linux/tiocl.h
@@ -34,5 +34,6 @@ struct tiocl_selection {
 #define TIOCL_SCROLLCONSOLE     13      /* scroll console */
 #define TIOCL_BLANKSCREEN       14      /* keep screen blank even if a key is pressed */
 #define TIOCL_BLANKEDSCREEN     15      /* return which vt was blanked */
+#define TIOCL_GETKMSGREDIRECT   17      /* get the vt the kernel messages are restricted to */
 
 #endif /* _LINUX_TIOCL_H */
diff --git a/include/linux/uinput.h b/include/linux/uinput.h
index 0ff7ca68e5c5..7168302f9844 100644
--- a/include/linux/uinput.h
+++ b/include/linux/uinput.h
@@ -20,7 +20,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  *
  * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
- * 
+ *
  * Changes/Revisions:
  *      0.2     16/10/2004 (Micah Dowty <micah@navi.cx>)
  *              - added force feedback support
@@ -51,7 +51,7 @@ struct uinput_request {
 
 struct uinput_device {
         struct input_dev        *dev;
-        struct semaphore        sem;
+        struct mutex            mutex;
         enum uinput_state       state;
         wait_queue_head_t       waitq;
         unsigned char           ready;
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index af2d6155d3fe..d7670ec1ec1e 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -966,66 +966,17 @@ struct v4l2_sliced_vbi_format
 
 /* Teletext World System Teletext
    (WST), defined on ITU-R BT.653-2 */
-#define V4L2_SLICED_TELETEXT_PAL_B      (0x000001)
-#define V4L2_SLICED_TELETEXT_PAL_C      (0x000002)
-#define V4L2_SLICED_TELETEXT_NTSC_B     (0x000010)
-#define V4L2_SLICED_TELETEXT_SECAM      (0x000020)
-
-/* Teletext North American Broadcast Teletext Specification
-   (NABTS), defined on ITU-R BT.653-2 */
-#define V4L2_SLICED_TELETEXT_NTSC_C     (0x000040)
-#define V4L2_SLICED_TELETEXT_NTSC_D     (0x000080)
-
+#define V4L2_SLICED_TELETEXT_B          (0x0001)
 /* Video Program System, defined on ETS 300 231*/
-#define V4L2_SLICED_VPS                 (0x000400)
-
+#define V4L2_SLICED_VPS                 (0x0400)
 /* Closed Caption, defined on EIA-608 */
-#define V4L2_SLICED_CAPTION_525         (0x001000)
-#define V4L2_SLICED_CAPTION_625         (0x002000)
-
+#define V4L2_SLICED_CAPTION_525         (0x1000)
 /* Wide Screen System, defined on ITU-R BT1119.1 */
-#define V4L2_SLICED_WSS_625             (0x004000)
-
-/* Wide Screen System, defined on IEC 61880 */
-#define V4L2_SLICED_WSS_525             (0x008000)
-
-/* Vertical Interval Timecode (VITC), defined on SMPTE 12M */
-#define V4l2_SLICED_VITC_625            (0x010000)
-#define V4l2_SLICED_VITC_525            (0x020000)
-
-#define V4L2_SLICED_TELETEXT_B          (V4L2_SLICED_TELETEXT_PAL_B  |\
-                                         V4L2_SLICED_TELETEXT_NTSC_B)
-
-#define V4L2_SLICED_TELETEXT            (V4L2_SLICED_TELETEXT_PAL_B  |\
-                                         V4L2_SLICED_TELETEXT_PAL_C  |\
-                                         V4L2_SLICED_TELETEXT_SECAM  |\
-                                         V4L2_SLICED_TELETEXT_NTSC_B |\
-                                         V4L2_SLICED_TELETEXT_NTSC_C |\
-                                         V4L2_SLICED_TELETEXT_NTSC_D)
-
-#define V4L2_SLICED_CAPTION             (V4L2_SLICED_CAPTION_525     |\
-                                         V4L2_SLICED_CAPTION_625)
-
-#define V4L2_SLICED_WSS                 (V4L2_SLICED_WSS_525         |\
-                                         V4L2_SLICED_WSS_625)
-
-#define V4L2_SLICED_VITC                (V4L2_SLICED_VITC_525        |\
-                                         V4L2_SLICED_VITC_625)
-
-#define V4L2_SLICED_VBI_525             (V4L2_SLICED_TELETEXT_NTSC_B |\
-                                         V4L2_SLICED_TELETEXT_NTSC_C |\
-                                         V4L2_SLICED_TELETEXT_NTSC_D |\
-                                         V4L2_SLICED_CAPTION_525     |\
-                                         V4L2_SLICED_WSS_525         |\
-                                         V4l2_SLICED_VITC_525)
-
-#define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_PAL_B  |\
-                                         V4L2_SLICED_TELETEXT_PAL_C  |\
-                                         V4L2_SLICED_TELETEXT_SECAM  |\
-                                         V4L2_SLICED_VPS             |\
-                                         V4L2_SLICED_CAPTION_625     |\
-                                         V4L2_SLICED_WSS_625         |\
-                                         V4l2_SLICED_VITC_625)
+#define V4L2_SLICED_WSS_625             (0x4000)
+
+#define V4L2_SLICED_VBI_525             (V4L2_SLICED_CAPTION_525)
+#define V4L2_SLICED_VBI_625             (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625)
+
 
 struct v4l2_sliced_vbi_cap
 {