19 files changed, 99 insertions, 66 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 32176cc8e715..2ad95fa1d130 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -388,20 +388,19 @@ struct request_queue
 #define QUEUE_FLAG_SYNCFULL     3       /* read queue has been filled */
 #define QUEUE_FLAG_ASYNCFULL    4       /* write queue has been filled */
 #define QUEUE_FLAG_DEAD         5       /* queue being torn down */
-#define QUEUE_FLAG_REENTER      6       /* Re-entrancy avoidance */
-#define QUEUE_FLAG_ELVSWITCH    7       /* don't use elevator, just do FIFO */
-#define QUEUE_FLAG_BIDI         8       /* queue supports bidi requests */
-#define QUEUE_FLAG_NOMERGES     9       /* disable merge attempts */
-#define QUEUE_FLAG_SAME_COMP   10       /* force complete on same CPU */
-#define QUEUE_FLAG_FAIL_IO     11       /* fake timeout */
-#define QUEUE_FLAG_STACKABLE   12       /* supports request stacking */
-#define QUEUE_FLAG_NONROT      13       /* non-rotational device (SSD) */
+#define QUEUE_FLAG_ELVSWITCH    6       /* don't use elevator, just do FIFO */
+#define QUEUE_FLAG_BIDI         7       /* queue supports bidi requests */
+#define QUEUE_FLAG_NOMERGES     8       /* disable merge attempts */
+#define QUEUE_FLAG_SAME_COMP    9       /* force complete on same CPU */
+#define QUEUE_FLAG_FAIL_IO     10       /* fake timeout */
+#define QUEUE_FLAG_STACKABLE   11       /* supports request stacking */
+#define QUEUE_FLAG_NONROT      12       /* non-rotational device (SSD) */
 #define QUEUE_FLAG_VIRT        QUEUE_FLAG_NONROT /* paravirt device */
-#define QUEUE_FLAG_IO_STAT     15       /* do IO stats */
-#define QUEUE_FLAG_DISCARD     16       /* supports DISCARD */
-#define QUEUE_FLAG_NOXMERGES   17       /* No extended merges */
-#define QUEUE_FLAG_ADD_RANDOM  18       /* Contributes to random pool */
-#define QUEUE_FLAG_SECDISCARD  19       /* supports SECDISCARD */
+#define QUEUE_FLAG_IO_STAT     13       /* do IO stats */
+#define QUEUE_FLAG_DISCARD     14       /* supports DISCARD */
+#define QUEUE_FLAG_NOXMERGES   15       /* No extended merges */
+#define QUEUE_FLAG_ADD_RANDOM  16       /* Contributes to random pool */
+#define QUEUE_FLAG_SECDISCARD  17       /* supports SECDISCARD */
 
 #define QUEUE_FLAG_DEFAULT      ((1 << QUEUE_FLAG_IO_STAT) |            \
                                  (1 << QUEUE_FLAG_STACKABLE)    |       \
@@ -697,8 +696,9 @@ extern void blk_start_queue(struct request_queue *q);
 extern void blk_stop_queue(struct request_queue *q);
 extern void blk_sync_queue(struct request_queue *q);
 extern void __blk_stop_queue(struct request_queue *q);
-extern void __blk_run_queue(struct request_queue *q, bool force_kblockd);
+extern void __blk_run_queue(struct request_queue *q);
 extern void blk_run_queue(struct request_queue *);
+extern void blk_run_queue_async(struct request_queue *q);
 extern int blk_rq_map_user(struct request_queue *, struct request *,
                            struct rq_map_data *, void __user *, unsigned long,
                            gfp_t);
@@ -857,26 +857,39 @@ extern void blk_put_queue(struct request_queue *);
 struct blk_plug {
         unsigned long magic;
         struct list_head list;
+        struct list_head cb_list;
         unsigned int should_sort;
 };
+struct blk_plug_cb {
+        struct list_head list;
+        void (*callback)(struct blk_plug_cb *);
+};
 
 extern void blk_start_plug(struct blk_plug *);
 extern void blk_finish_plug(struct blk_plug *);
-extern void __blk_flush_plug(struct task_struct *, struct blk_plug *);
+extern void blk_flush_plug_list(struct blk_plug *, bool);
 
 static inline void blk_flush_plug(struct task_struct *tsk)
 {
         struct blk_plug *plug = tsk->plug;
 
-        if (unlikely(plug))
-                __blk_flush_plug(tsk, plug);
+        if (plug)
+                blk_flush_plug_list(plug, false);
+}
+
+static inline void blk_schedule_flush_plug(struct task_struct *tsk)
+{
+        struct blk_plug *plug = tsk->plug;
+
+        if (plug)
+                blk_flush_plug_list(plug, true);
 }
 
 static inline bool blk_needs_flush_plug(struct task_struct *tsk)
 {
         struct blk_plug *plug = tsk->plug;
 
-        return plug && !list_empty(&plug->list);
+        return plug && (!list_empty(&plug->list) || !list_empty(&plug->cb_list));
 }
 
 /*
@@ -1314,6 +1327,11 @@ static inline void blk_flush_plug(struct task_struct *task)
 {
 }
 
+static inline void blk_schedule_flush_plug(struct task_struct *task)
+{
+}
+
+
 static inline bool blk_needs_flush_plug(struct task_struct *tsk)
 {
         return false;
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index e2768834f397..32a4423710f5 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -197,7 +197,6 @@ struct dm_target {
 struct dm_target_callbacks {
         struct list_head list;
         int (*congested_fn) (struct dm_target_callbacks *, int);
-        void (*unplug_fn)(struct dm_target_callbacks *);
 };
 
 int dm_register_target(struct target_type *t);
diff --git a/include/linux/input.h b/include/linux/input.h
index f3a7794a18c4..771d6d85667d 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -167,6 +167,7 @@ struct input_keymap_entry {
 #define SYN_REPORT              0
 #define SYN_CONFIG              1
 #define SYN_MT_REPORT           2
+#define SYN_DROPPED             3
 
 /*
  * Keys and buttons
@@ -553,8 +554,8 @@ struct input_keymap_entry {
 #define KEY_DVD                 0x185   /* Media Select DVD */
 #define KEY_AUX                 0x186
 #define KEY_MP3                 0x187
-#define KEY_AUDIO               0x188
-#define KEY_VIDEO               0x189
+#define KEY_AUDIO               0x188   /* AL Audio Browser */
+#define KEY_VIDEO               0x189   /* AL Movie Browser */
 #define KEY_DIRECTORY           0x18a
 #define KEY_LIST                0x18b
 #define KEY_MEMO                0x18c   /* Media Select Messages */
@@ -603,8 +604,9 @@ struct input_keymap_entry {
 #define KEY_FRAMEFORWARD        0x1b5
 #define KEY_CONTEXT_MENU        0x1b6   /* GenDesc - system context menu */
 #define KEY_MEDIA_REPEAT        0x1b7   /* Consumer - transport control */
-#define KEY_10CHANNELSUP        0x1b8   /* 10 channels up (10+) */
-#define KEY_10CHANNELSDOWN      0x1b9   /* 10 channels down (10-) */
+#define KEY_10CHANNELSUP        0x1b8   /* 10 channels up (10+) */
+#define KEY_10CHANNELSDOWN      0x1b9   /* 10 channels down (10-) */
+#define KEY_IMAGES              0x1ba   /* AL Image Browser */
 
 #define KEY_DEL_EOL             0x1c0
 #define KEY_DEL_EOS             0x1c1
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index b3ac06a4435d..318bb82325a6 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -48,6 +48,12 @@ static inline void input_mt_slot(struct input_dev *dev, int slot)
         input_event(dev, EV_ABS, ABS_MT_SLOT, slot);
 }
 
+static inline bool input_is_mt_axis(int axis)
+{
+        return axis == ABS_MT_SLOT ||
+                (axis >= ABS_MT_FIRST && axis <= ABS_MT_LAST);
+}
+
 void input_mt_report_slot_state(struct input_dev *dev,
                                 unsigned int tool_type, bool active);
 
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 5a5ce7055839..5e9840f50980 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -216,7 +216,7 @@ static inline void mem_cgroup_del_lru_list(struct page *page, int lru)
         return ;
 }
 
-static inline inline void mem_cgroup_rotate_reclaimable_page(struct page *page)
+static inline void mem_cgroup_rotate_reclaimable_page(struct page *page)
 {
         return ;
 }
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index ad1b19aa6508..aef23309a742 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -86,16 +86,25 @@ extern int mfd_clone_cell(const char *cell, const char **clones,
  */
 static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev)
 {
-        return pdev->dev.platform_data;
+        return pdev->mfd_cell;
 }
 
 /*
  * Given a platform device that's been created by mfd_add_devices(), fetch
  * the .mfd_data entry from the mfd_cell that created it.
+ * Otherwise just return the platform_data pointer.
+ * This maintains compatibility with platform drivers whose devices aren't
+ * created by the mfd layer, and expect platform_data to contain what would've
+ * otherwise been in mfd_data.
  */
 static inline void *mfd_get_data(struct platform_device *pdev)
 {
-        return mfd_get_cell(pdev)->mfd_data;
+        const struct mfd_cell *cell = mfd_get_cell(pdev);
+
+        if (cell)
+                return cell->mfd_data;
+        else
+                return pdev->dev.platform_data;
 }
 
 extern int mfd_add_devices(struct device *parent, int id,
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 31afb7ecbe1f..cdced84261d7 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -117,7 +117,7 @@ extern struct pid *find_vpid(int nr);
  */
 extern struct pid *find_get_pid(int nr);
 extern struct pid *find_ge_pid(int nr, struct pid_namespace *);
-int next_pidmap(struct pid_namespace *pid_ns, int last);
+int next_pidmap(struct pid_namespace *pid_ns, unsigned int last);
 
 extern struct pid *alloc_pid(struct pid_namespace *ns);
 extern void free_pid(struct pid *pid);
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index d96db9825708..744942c95fec 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -14,6 +14,8 @@
 #include <linux/device.h>
 #include <linux/mod_devicetable.h>
 
+struct mfd_cell;
+
 struct platform_device {
         const char      * name;
         int             id;
@@ -23,6 +25,9 @@ struct platform_device {
 
         const struct platform_device_id *id_entry;
 
+        /* MFD cell pointer */
+        struct mfd_cell *mfd_cell;
+
         /* arch specific additions */
         struct pdev_archdata    archdata;
 };
diff --git a/include/linux/posix-clock.h b/include/linux/posix-clock.h
index 369e19d3750b..7f1183dcd119 100644
--- a/include/linux/posix-clock.h
+++ b/include/linux/posix-clock.h
@@ -24,6 +24,7 @@
 #include <linux/fs.h>
 #include <linux/poll.h>
 #include <linux/posix-timers.h>
+#include <linux/rwsem.h>
 
 struct posix_clock;
 
@@ -104,7 +105,7 @@ struct posix_clock_operations {
  * @ops:     Functional interface to the clock
  * @cdev:    Character device instance for this clock
  * @kref:    Reference count.
- * @mutex:   Protects the 'zombie' field from concurrent access.
+ * @rwsem:   Protects the 'zombie' field from concurrent access.
  * @zombie:  If 'zombie' is true, then the hardware has disappeared.
  * @release: A function to free the structure when the reference count reaches
  *           zero. May be NULL if structure is statically allocated.
@@ -117,7 +118,7 @@ struct posix_clock {
         struct posix_clock_operations ops;
         struct cdev cdev;
         struct kref kref;
-        struct mutex mutex;
+        struct rw_semaphore rwsem;
         bool zombie;
         void (*release)(struct posix_clock *clk);
 };
diff --git a/include/linux/rio.h b/include/linux/rio.h
index 4e37a7cfa726..4d50611112ba 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -396,7 +396,7 @@ union rio_pw_msg {
 };
 
 /* Architecture and hardware-specific functions */
-extern void rio_register_mport(struct rio_mport *);
+extern int rio_register_mport(struct rio_mport *);
 extern int rio_open_inb_mbox(struct rio_mport *, void *, int, int);
 extern void rio_close_inb_mbox(struct rio_mport *, int);
 extern int rio_open_outb_mbox(struct rio_mport *, void *, int, int);
diff --git a/include/linux/rio_ids.h b/include/linux/rio_ids.h
index 7410d3365e2a..0cee0152aca9 100644
--- a/include/linux/rio_ids.h
+++ b/include/linux/rio_ids.h
@@ -35,6 +35,7 @@
 #define RIO_DID_IDTCPS6Q                0x035f
 #define RIO_DID_IDTCPS10Q               0x035e
 #define RIO_DID_IDTCPS1848              0x0374
+#define RIO_DID_IDTCPS1432              0x0375
 #define RIO_DID_IDTCPS1616              0x0379
 #define RIO_DID_IDTVPS1616              0x0377
 #define RIO_DID_IDTSPS1616              0x0378
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 2ca7e8a78060..877ece45426f 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -228,6 +228,8 @@ extern int rtc_read_alarm(struct rtc_device *rtc,
                         struct rtc_wkalrm *alrm);
 extern int rtc_set_alarm(struct rtc_device *rtc,
                                 struct rtc_wkalrm *alrm);
+extern int rtc_initialize_alarm(struct rtc_device *rtc,
+                                struct rtc_wkalrm *alrm);
 extern void rtc_update_irq(struct rtc_device *rtc,
                         unsigned long num, unsigned long events);
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4ec2c027e92c..18d63cea2848 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1254,6 +1254,9 @@ struct task_struct {
 #endif
 
         struct mm_struct *mm, *active_mm;
+#ifdef CONFIG_COMPAT_BRK
+        unsigned brk_randomized:1;
+#endif
 #if defined(SPLIT_RSS_COUNTING)
         struct task_rss_stat    rss_stat;
 #endif
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 5a89e3612875..083ffea7ba18 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -249,6 +249,8 @@ extern void hibernation_set_ops(const struct platform_hibernation_ops *ops);
 extern int hibernate(void);
 extern bool system_entering_hibernation(void);
 #else /* CONFIG_HIBERNATION */
+static inline void register_nosave_region(unsigned long b, unsigned long e) {}
+static inline void register_nosave_region_late(unsigned long b, unsigned long e) {}
 static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
 static inline void swsusp_set_page_free(struct page *p) {}
 static inline void swsusp_unset_page_free(struct page *p) {}
@@ -297,14 +299,7 @@ static inline bool pm_wakeup_pending(void) { return false; }
 
 extern struct mutex pm_mutex;
 
-#ifndef CONFIG_HIBERNATION
-static inline void register_nosave_region(unsigned long b, unsigned long e)
-{
-}
-static inline void register_nosave_region_late(unsigned long b, unsigned long e)
-{
-}
-
+#ifndef CONFIG_HIBERNATE_CALLBACKS
 static inline void lock_system_sleep(void) {}
 static inline void unlock_system_sleep(void) {}
 
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 3c7329b8ea0e..0e1855079fbb 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -103,8 +103,8 @@ struct driver_info {
  * Indicates to usbnet, that USB driver accumulates multiple IP packets.
  * Affects statistic (counters) and short packet handling.
  */
-#define FLAG_MULTI_PACKET       0x1000
-#define FLAG_RX_ASSEMBLE        0x2000  /* rx packets may span >1 frames */
+#define FLAG_MULTI_PACKET       0x2000
+#define FLAG_RX_ASSEMBLE        0x4000  /* rx packets may span >1 frames */
 
         /* init device ... can sleep, or cause probe() failure */
         int     (*bind)(struct usbnet *, struct usb_interface *);
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 461c0119664f..2b3831b58aa4 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -58,6 +58,13 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
                 UNEVICTABLE_PGCLEARED,  /* on COW, page truncate */
                 UNEVICTABLE_PGSTRANDED, /* unable to isolate on unlock */
                 UNEVICTABLE_MLOCKFREED,
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+                THP_FAULT_ALLOC,
+                THP_FAULT_FALLBACK,
+                THP_COLLAPSE_ALLOC,
+                THP_COLLAPSE_ALLOC_FAILED,
+                THP_SPLIT,
+#endif
                 NR_VM_EVENT_ITEMS
 };
 
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index cdf2e8ac4309..d2df55b0c213 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -139,8 +139,6 @@ do { \
  */
 
 enum p9_msg_t {
-        P9_TSYNCFS = 0,
-        P9_RSYNCFS,
         P9_TLERROR = 6,
         P9_RLERROR,
         P9_TSTATFS = 8,
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 85c1413f054d..051a99f79769 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -218,8 +218,8 @@ void p9_client_disconnect(struct p9_client *clnt);
 void p9_client_begin_disconnect(struct p9_client *clnt);
 struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
                                         char *uname, u32 n_uname, char *aname);
-struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
-                                                                int clone);
+struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
+                char **wnames, int clone);
 int p9_client_open(struct p9_fid *fid, int mode);
 int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
                                                         char *extension);
@@ -230,7 +230,6 @@ int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode,
                 gid_t gid, struct p9_qid *qid);
 int p9_client_clunk(struct p9_fid *fid);
 int p9_client_fsync(struct p9_fid *fid, int datasync);
-int p9_client_sync_fs(struct p9_fid *fid);
 int p9_client_remove(struct p9_fid *fid);
 int p9_client_read(struct p9_fid *fid, char *data, char __user *udata,
                                                         u64 offset, u32 count);
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 78f18adb49c8..bf366547da25 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -401,9 +401,9 @@ TRACE_EVENT(block_plug,
 
 DECLARE_EVENT_CLASS(block_unplug,
 
-        TP_PROTO(struct request_queue *q),
+        TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
 
-        TP_ARGS(q),
+        TP_ARGS(q, depth, explicit),
 
         TP_STRUCT__entry(
                 __field( int,           nr_rq                   )
@@ -411,7 +411,7 @@ DECLARE_EVENT_CLASS(block_unplug,
         ),
 
         TP_fast_assign(
-                __entry->nr_rq  = q->rq.count[READ] + q->rq.count[WRITE];
+                __entry->nr_rq = depth;
                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
         ),
 
@@ -419,31 +419,19 @@ DECLARE_EVENT_CLASS(block_unplug,
 );
 
 /**
- * block_unplug_timer - timed release of operations requests in queue to device driver
- * @q: request queue to unplug
- *
- * Unplug the request queue @q because a timer expired and allow block
- * operation requests to be sent to the device driver.
- */
-DEFINE_EVENT(block_unplug, block_unplug_timer,
-
-        TP_PROTO(struct request_queue *q),
-
-        TP_ARGS(q)
-);
-
-/**
- * block_unplug_io - release of operations requests in request queue
+ * block_unplug - release of operations requests in request queue
  * @q: request queue to unplug
+ * @depth: number of requests just added to the queue
+ * @explicit: whether this was an explicit unplug, or one from schedule()
  *
  * Unplug request queue @q because device driver is scheduled to work
  * on elements in the request queue.
  */
-DEFINE_EVENT(block_unplug, block_unplug_io,
+DEFINE_EVENT(block_unplug, block_unplug,
 
-        TP_PROTO(struct request_queue *q),
+        TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
 
-        TP_ARGS(q)
+        TP_ARGS(q, depth, explicit)
 );
 
 /**