Merge branch 'linus' into sched/core

Reason: Bring bakc upstream modification to resolve conflicts

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

34 files changed, 295 insertions, 118 deletions

diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index fd8bf3219ef7..b4a745d7d9a9 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -115,7 +115,6 @@ extern int copy_strings_kernel(int argc, const char *const *argv,
 extern int prepare_bprm_creds(struct linux_binprm *bprm);
 extern void install_exec_creds(struct linux_binprm *bprm);
 extern void set_binfmt(struct linux_binfmt *new);
-extern void free_bprm(struct linux_binprm *);
 extern ssize_t read_code(struct file *, unsigned long, loff_t, size_t);
 
 #endif /* _LINUX_BINFMTS_H */
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 70654521dab6..5a4d39b4686b 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -250,6 +250,17 @@ static inline unsigned bio_segments(struct bio *bio)
 	struct bio_vec bv;
 	struct bvec_iter iter;
 
+	/*
+	 * We special case discard/write same, because they interpret bi_size
+	 * differently:
+	 */
+
+	if (bio->bi_rw & REQ_DISCARD)
+		return 1;
+
+	if (bio->bi_rw & REQ_WRITE_SAME)
+		return 1;
+
 	bio_for_each_segment(bv, bio, iter)
 		segs++;
 
@@ -332,6 +343,7 @@ extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);
 extern struct bio *bio_clone_bioset(struct bio *, gfp_t, struct bio_set *bs);
 
 extern struct bio_set *fs_bio_set;
+unsigned int bio_integrity_tag_size(struct bio *bio);
 
 static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
 {
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 161b23105b1e..18ba8a627f46 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -83,6 +83,8 @@ struct blk_mq_ops {
 	 */
 	rq_timed_out_fn		*timeout;
 
+	softirq_done_fn		*complete;
+
 	/*
 	 * Override for hctx allocations (should probably go)
 	 */
@@ -119,11 +121,12 @@ void blk_mq_init_commands(struct request_queue *, void (*init)(void *data, struc
 
 void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule);
 
-void blk_mq_insert_request(struct request_queue *, struct request *, bool);
+void blk_mq_insert_request(struct request_queue *, struct request *,
+		bool, bool);
 void blk_mq_run_queues(struct request_queue *q, bool async);
 void blk_mq_free_request(struct request *rq);
 bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
-struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp, bool reserved);
+struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp);
 struct request *blk_mq_alloc_reserved_request(struct request_queue *q, int rw, gfp_t gfp);
 struct request *blk_mq_rq_from_tag(struct request_queue *q, unsigned int tag);
 
@@ -133,6 +136,8 @@ void blk_mq_free_single_hw_queue(struct blk_mq_hw_ctx *, unsigned int);
 
 void blk_mq_end_io(struct request *rq, int error);
 
+void blk_mq_complete_request(struct request *rq);
+
 void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);
 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx);
 void blk_mq_stop_hw_queues(struct request_queue *q);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8678c4322b44..4afa4f8f6090 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -98,7 +98,7 @@ struct request {
 	struct list_head queuelist;
 	union {
 		struct call_single_data csd;
-		struct work_struct mq_flush_data;
+		struct work_struct mq_flush_work;
 	};
 
 	struct request_queue *q;
@@ -448,13 +448,8 @@ struct request_queue {
 	unsigned long		flush_pending_since;
 	struct list_head	flush_queue[2];
 	struct list_head	flush_data_in_flight;
-	union {
-		struct request	flush_rq;
-		struct {
-			spinlock_t mq_flush_lock;
-			struct work_struct mq_flush_work;
-		};
-	};
+	struct request		*flush_rq;
+	spinlock_t		mq_flush_lock;
 
 	struct mutex		sysfs_lock;
 
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index 2f0543f7510c..f9bbbb472663 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -11,7 +11,9 @@
 #define CAN_SKB_H
 
 #include <linux/types.h>
+#include <linux/skbuff.h>
 #include <linux/can.h>
+#include <net/sock.h>
 
 /*
  * The struct can_skb_priv is used to transport additional information along
@@ -42,4 +44,40 @@ static inline void can_skb_reserve(struct sk_buff *skb)
 	skb_reserve(skb, sizeof(struct can_skb_priv));
 }
 
+static inline void can_skb_destructor(struct sk_buff *skb)
+{
+	sock_put(skb->sk);
+}
+
+static inline void can_skb_set_owner(struct sk_buff *skb, struct sock *sk)
+{
+	if (sk) {
+		sock_hold(sk);
+		skb->destructor = can_skb_destructor;
+		skb->sk = sk;
+	}
+}
+
+/*
+ * returns an unshared skb owned by the original sock to be echo'ed back
+ */
+static inline struct sk_buff *can_create_echo_skb(struct sk_buff *skb)
+{
+	if (skb_shared(skb)) {
+		struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC);
+
+		if (likely(nskb)) {
+			can_skb_set_owner(nskb, skb->sk);
+			consume_skb(skb);
+			return nskb;
+		} else {
+			kfree_skb(skb);
+			return NULL;
+		}
+	}
+
+	/* we can assume to have an unshared skb with proper owner */
+	return skb;
+}
+
 #endif /* CAN_SKB_H */
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index 2623cffc73a1..25bfb0eff772 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -373,8 +373,9 @@ extern const char *ceph_mds_op_name(int op);
 /*
  * Ceph setxattr request flags.
  */
-#define CEPH_XATTR_CREATE  1
-#define CEPH_XATTR_REPLACE 2
+#define CEPH_XATTR_CREATE  (1 << 0)
+#define CEPH_XATTR_REPLACE (1 << 1)
+#define CEPH_XATTR_REMOVE  (1 << 31)
 
 union ceph_mds_request_args {
 	struct {
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 5c097596104b..9450f025fe0c 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -166,6 +166,8 @@ struct cgroup {
 	 *
 	 * The ID of the root cgroup is always 0, and a new cgroup
 	 * will be assigned with a smallest available ID.
+	 *
+	 * Allocating/Removing ID must be protected by cgroup_mutex.
 	 */
 	int id;
 
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index ded429966c1f..2507fd2a1eb4 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -75,11 +75,7 @@
  *
  * (asm goto is automatically volatile - the naming reflects this.)
  */
-#if GCC_VERSION <= 40801
-# define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
-#else
-# define asm_volatile_goto(x...)	do { asm goto(x); } while (0)
-#endif
+#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
 
 #ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
 #if GCC_VERSION >= 40400
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index dfac5ed31120..f886985a28b2 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -171,7 +171,7 @@ struct dma_buf *dma_buf_export_named(void *priv, const struct dma_buf_ops *ops,
 			       size_t size, int flags, const char *);
 
 #define dma_buf_export(priv, ops, size, flags)	\
-	dma_buf_export_named(priv, ops, size, flags, __FILE__)
+	dma_buf_export_named(priv, ops, size, flags, KBUILD_MODNAME)
 
 int dma_buf_fd(struct dma_buf *dmabuf, int flags);
 struct dma_buf *dma_buf_get(int fd);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 09f553c59813..60829565e552 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2079,6 +2079,7 @@ extern struct file * dentry_open(const struct path *, int, const struct cred *);
 extern int filp_close(struct file *, fl_owner_t id);
 
 extern struct filename *getname(const char __user *);
+extern struct filename *getname_kernel(const char *);
 
 enum {
 	FILE_CREATED = 1,
@@ -2273,7 +2274,13 @@ extern int filemap_fdatawrite_range(struct address_space *mapping,
 extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
 			   int datasync);
 extern int vfs_fsync(struct file *file, int datasync);
-extern int generic_write_sync(struct file *file, loff_t pos, loff_t count);
+static inline int generic_write_sync(struct file *file, loff_t pos, loff_t count)
+{
+	if (!(file->f_flags & O_DSYNC) && !IS_SYNC(file->f_mapping->host))
+		return 0;
+	return vfs_fsync_range(file, pos, pos + count - 1,
+			       (file->f_flags & __O_SYNC) ? 0 : 1);
+}
 extern void emergency_sync(void);
 extern void emergency_remount(void);
 #ifdef CONFIG_BLOCK
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 4d34dbbbad4d..7a8144fef406 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -4,8 +4,6 @@
 #include <linux/err.h>
 #include <linux/kernel.h>
 
-#ifdef CONFIG_GPIOLIB
-
 struct device;
 struct gpio_chip;
 
@@ -18,6 +16,8 @@ struct gpio_chip;
  */
 struct gpio_desc;
 
+#ifdef CONFIG_GPIOLIB
+
 /* Acquire and dispose GPIOs */
 struct gpio_desc *__must_check gpiod_get(struct device *dev,
 					 const char *con_id);
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 15da677478dd..344883dce584 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -875,7 +875,7 @@ struct vmbus_channel_relid_released {
 struct vmbus_channel_initiate_contact {
 	struct vmbus_channel_message_header header;
 	u32 vmbus_version_requested;
-	u32 padding2;
+	u32 target_vcpu; /* The VCPU the host should respond to */
 	u64 interrupt_page;
 	u64 monitor_page1;
 	u64 monitor_page2;
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 0053adde0ed9..a2678d35b5a2 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -158,6 +158,11 @@ devm_request_irq(struct device *dev, unsigned int irq, irq_handler_t handler,
 					 devname, dev_id);
 }
 
+extern int __must_check
+devm_request_any_context_irq(struct device *dev, unsigned int irq,
+		 irq_handler_t handler, unsigned long irqflags,
+		 const char *devname, void *dev_id);
+
 extern void devm_free_irq(struct device *dev, unsigned int irq, void *dev_id);
 
 /*
diff --git a/include/linux/mfd/max8997-private.h b/include/linux/mfd/max8997-private.h
index ad1ae7f345ad..78c76cd4d37b 100644
--- a/include/linux/mfd/max8997-private.h
+++ b/include/linux/mfd/max8997-private.h
@@ -387,7 +387,7 @@ struct max8997_dev {
 	struct i2c_client *muic; /* slave addr 0x4a */
 	struct mutex iolock;
 
-	int type;
+	unsigned long type;
 	struct platform_device *battery; /* battery control (not fuel gauge) */
 
 	int irq;
diff --git a/include/linux/mfd/max8998-private.h b/include/linux/mfd/max8998-private.h
index 4ecb24b4b863..d68ada502ff3 100644
--- a/include/linux/mfd/max8998-private.h
+++ b/include/linux/mfd/max8998-private.h
@@ -163,7 +163,7 @@ struct max8998_dev {
 	int ono;
 	u8 irq_masks_cur[MAX8998_NUM_IRQ_REGS];
 	u8 irq_masks_cache[MAX8998_NUM_IRQ_REGS];
-	int type;
+	unsigned long type;
 	bool wakeup;
 };
 
diff --git a/include/linux/mfd/tps65217.h b/include/linux/mfd/tps65217.h
index a5a7f0130e96..54b5458ec084 100644
--- a/include/linux/mfd/tps65217.h
+++ b/include/linux/mfd/tps65217.h
@@ -252,7 +252,7 @@ struct tps65217_board {
 struct tps65217 {
 	struct device *dev;
 	struct tps65217_board *pdata;
-	unsigned int id;
+	unsigned long id;
 	struct regulator_desc desc[TPS65217_NUM_REGULATOR];
 	struct regulator_dev *rdev[TPS65217_NUM_REGULATOR];
 	struct regmap *regmap;
@@ -263,7 +263,7 @@ static inline struct tps65217 *dev_to_tps65217(struct device *dev)
 	return dev_get_drvdata(dev);
 }
 
-static inline int tps65217_chip_id(struct tps65217 *tps65217)
+static inline unsigned long tps65217_chip_id(struct tps65217 *tps65217)
 {
 	return tps65217->id;
 }
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 554548cd3dd4..130bc8d77fa5 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -38,8 +38,10 @@
 #include <linux/pci.h>
 #include <linux/spinlock_types.h>
 #include <linux/semaphore.h>
+#include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/radix-tree.h>
+
 #include <linux/mlx5/device.h>
 #include <linux/mlx5/doorbell.h>
 
@@ -227,6 +229,7 @@ struct mlx5_uuar_info {
 	 * protect uuar allocation data structs
 	 */
 	struct mutex		lock;
+	u32			ver;
 };
 
 struct mlx5_bf {
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 440a02ee6f92..e8eeebd49a98 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -752,6 +752,9 @@ struct netdev_phys_port_id {
 	unsigned char id_len;
 };
 
+typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
+				       struct sk_buff *skb);
+
 /*
  * This structure defines the management hooks for network devices.
  * The following hooks can be defined; unless noted otherwise, they are
@@ -783,7 +786,7 @@ struct netdev_phys_port_id {
  *	Required can not be NULL.
  *
  * u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb,
- *                         void *accel_priv);
+ *                         void *accel_priv, select_queue_fallback_t fallback);
  *	Called to decide which queue to when device supports multiple
  *	transmit queues.
  *
@@ -1005,7 +1008,8 @@ struct net_device_ops {
 						   struct net_device *dev);
 	u16			(*ndo_select_queue)(struct net_device *dev,
 						    struct sk_buff *skb,
-						    void *accel_priv);
+						    void *accel_priv,
+						    select_queue_fallback_t fallback);
 	void			(*ndo_change_rx_flags)(struct net_device *dev,
 						       int flags);
 	void			(*ndo_set_rx_mode)(struct net_device *dev);
@@ -1551,7 +1555,6 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev,
 struct netdev_queue *netdev_pick_tx(struct net_device *dev,
 				    struct sk_buff *skb,
 				    void *accel_priv);
-u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb);
 
 /*
  * Net namespace inlines
@@ -2276,6 +2279,26 @@ static inline void netdev_reset_queue(struct net_device *dev_queue)
 }
 
 /**
+ * 	netdev_cap_txqueue - check if selected tx queue exceeds device queues
+ * 	@dev: network device
+ * 	@queue_index: given tx queue index
+ *
+ * 	Returns 0 if given tx queue index >= number of device tx queues,
+ * 	otherwise returns the originally passed tx queue index.
+ */
+static inline u16 netdev_cap_txqueue(struct net_device *dev, u16 queue_index)
+{
+	if (unlikely(queue_index >= dev->real_num_tx_queues)) {
+		net_warn_ratelimited("%s selects TX queue %d, but real number of TX queues is %d\n",
+				     dev->name, queue_index,
+				     dev->real_num_tx_queues);
+		return 0;
+	}
+
+	return queue_index;
+}
+
+/**
  *	netif_running - test if up
  *	@dev: network device
  *
@@ -3068,7 +3091,12 @@ void netdev_change_features(struct net_device *dev);
 void netif_stacked_transfer_operstate(const struct net_device *rootdev,
 					struct net_device *dev);
 
-netdev_features_t netif_skb_features(struct sk_buff *skb);
+netdev_features_t netif_skb_dev_features(struct sk_buff *skb,
+					 const struct net_device *dev);
+static inline netdev_features_t netif_skb_features(struct sk_buff *skb)
+{
+	return netif_skb_dev_features(skb, skb->dev);
+}
 
 static inline bool net_gso_ok(netdev_features_t features, int gso_type)
 {
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 3ccfcecf8999..b2fb167b2e6d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -379,12 +379,14 @@ struct nfs_openres {
  * Arguments to the open_confirm call.
  */
 struct nfs_open_confirmargs {
+	struct nfs4_sequence_args	seq_args;
 	const struct nfs_fh *	fh;
 	nfs4_stateid *		stateid;
 	struct nfs_seqid *	seqid;
 };
 
 struct nfs_open_confirmres {
+	struct nfs4_sequence_res	seq_res;
 	nfs4_stateid            stateid;
 	struct nfs_seqid *	seqid;
 };
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 26ebcf41c213..69ae03f6eb15 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -80,13 +80,14 @@ struct nvme_dev {
 	struct dma_pool *prp_small_pool;
 	int instance;
 	int queue_count;
-	int db_stride;
+	u32 db_stride;
 	u32 ctrl_config;
 	struct msix_entry *entry;
 	struct nvme_bar __iomem *bar;
 	struct list_head namespaces;
 	struct kref kref;
 	struct miscdevice miscdev;
+	struct work_struct reset_work;
 	char name[12];
 	char serial[20];
 	char model[40];
@@ -94,6 +95,8 @@ struct nvme_dev {
 	u32 max_hw_sectors;
 	u32 stripe_size;
 	u16 oncs;
+	u16 abort_limit;
+	u8 initialized;
 };
 
 /*
@@ -165,6 +168,7 @@ int nvme_set_features(struct nvme_dev *dev, unsigned fid, unsigned dword11,
 struct sg_io_hdr;
 
 int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr);
+int nvme_sg_io32(struct nvme_ns *ns, unsigned long arg);
 int nvme_sg_get_version_num(int __user *ip);
 
 #endif /* _LINUX_NVME_H */
diff --git a/include/linux/of.h b/include/linux/of.h
index 70c64ba17fa5..435cb995904d 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -169,35 +169,15 @@ static inline const char *of_node_full_name(const struct device_node *np)
 
 extern struct device_node *of_find_node_by_name(struct device_node *from,
 	const char *name);
-#define for_each_node_by_name(dn, name) \
-	for (dn = of_find_node_by_name(NULL, name); dn; \
-	     dn = of_find_node_by_name(dn, name))
 extern struct device_node *of_find_node_by_type(struct device_node *from,
 	const char *type);
-#define for_each_node_by_type(dn, type) \
-	for (dn = of_find_node_by_type(NULL, type); dn; \
-	     dn = of_find_node_by_type(dn, type))
 extern struct device_node *of_find_compatible_node(struct device_node *from,
 	const char *type, const char *compat);
-#define for_each_compatible_node(dn, type, compatible) \
-	for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
-	     dn = of_find_compatible_node(dn, type, compatible))
 extern struct device_node *of_find_matching_node_and_match(
 	struct device_node *from,
 	const struct of_device_id *matches,
 	const struct of_device_id **match);
-static inline struct device_node *of_find_matching_node(
-	struct device_node *from,
-	const struct of_device_id *matches)
-{
-	return of_find_matching_node_and_match(from, matches, NULL);
-}
-#define for_each_matching_node(dn, matches) \
-	for (dn = of_find_matching_node(NULL, matches); dn; \
-	     dn = of_find_matching_node(dn, matches))
-#define for_each_matching_node_and_match(dn, matches, match) \
-	for (dn = of_find_matching_node_and_match(NULL, matches, match); \
-	     dn; dn = of_find_matching_node_and_match(dn, matches, match))
+
 extern struct device_node *of_find_node_by_path(const char *path);
 extern struct device_node *of_find_node_by_phandle(phandle handle);
 extern struct device_node *of_get_parent(const struct device_node *node);
@@ -209,43 +189,11 @@ extern struct device_node *of_get_next_available_child(
 
 extern struct device_node *of_get_child_by_name(const struct device_node *node,
 					const char *name);
-#define for_each_child_of_node(parent, child) \
-	for (child = of_get_next_child(parent, NULL); child != NULL; \
-	     child = of_get_next_child(parent, child))
-
-#define for_each_available_child_of_node(parent, child) \
-	for (child = of_get_next_available_child(parent, NULL); child != NULL; \
-	     child = of_get_next_available_child(parent, child))
-
-static inline int of_get_child_count(const struct device_node *np)
-{
-	struct device_node *child;
-	int num = 0;
-
-	for_each_child_of_node(np, child)
-		num++;
-
-	return num;
-}
-
-static inline int of_get_available_child_count(const struct device_node *np)
-{
-	struct device_node *child;
-	int num = 0;
-
-	for_each_available_child_of_node(np, child)
-		num++;
-
-	return num;
-}
 
 /* cache lookup */
 extern struct device_node *of_find_next_cache_node(const struct device_node *);
 extern struct device_node *of_find_node_with_property(
 	struct device_node *from, const char *prop_name);
-#define for_each_node_with_property(dn, prop_name) \
-	for (dn = of_find_node_with_property(NULL, prop_name); dn; \
-	     dn = of_find_node_with_property(dn, prop_name))
 
 extern struct property *of_find_property(const struct device_node *np,
 					 const char *name,
@@ -367,42 +315,53 @@ static inline struct device_node *of_find_node_by_name(struct device_node *from,
 	return NULL;
 }
 
-static inline struct device_node *of_get_parent(const struct device_node *node)
+static inline struct device_node *of_find_node_by_type(struct device_node *from,
+	const char *type)
 {
 	return NULL;
 }
 
-static inline bool of_have_populated_dt(void)
+static inline struct device_node *of_find_matching_node_and_match(
+	struct device_node *from,
+	const struct of_device_id *matches,
+	const struct of_device_id **match)
 {
-	return false;
+	return NULL;
 }
 
-/* Kill an unused variable warning on a device_node pointer */
-static inline void __of_use_dn(const struct device_node *np)
+static inline struct device_node *of_get_parent(const struct device_node *node)
 {
+	return NULL;
 }
 
-#define for_each_child_of_node(parent, child) \
-	while (__of_use_dn(parent), __of_use_dn(child), 0)
+static inline struct device_node *of_get_next_child(
+	const struct device_node *node, struct device_node *prev)
+{
+	return NULL;
+}
 
-#define for_each_available_child_of_node(parent, child) \
-	while (0)
+static inline struct device_node *of_get_next_available_child(
+	const struct device_node *node, struct device_node *prev)
+{
+	return NULL;
+}
 
-static inline struct device_node *of_get_child_by_name(
-					const struct device_node *node,
-					const char *name)
+static inline struct device_node *of_find_node_with_property(
+	struct device_node *from, const char *prop_name)
 {
 	return NULL;
 }
 
-static inline int of_get_child_count(const struct device_node *np)
+static inline bool of_have_populated_dt(void)
 {
-	return 0;
+	return false;
 }
 
-static inline int of_get_available_child_count(const struct device_node *np)
+static inline struct device_node *of_get_child_by_name(
+					const struct device_node *node,
+					const char *name)
 {
-	return 0;
+	return NULL;
 }
 
 static inline int of_device_is_compatible(const struct device_node *device,
@@ -569,6 +528,13 @@ extern int of_node_to_nid(struct device_node *np);
 static inline int of_node_to_nid(struct device_node *device) { return 0; }
 #endif
 
+static inline struct device_node *of_find_matching_node(
+	struct device_node *from,
+	const struct of_device_id *matches)
+{
+	return of_find_matching_node_and_match(from, matches, NULL);
+}
+
 /**
  * of_property_read_bool - Findfrom a property
  * @np:		device node from which the property value is to be read.
@@ -618,6 +584,55 @@ static inline int of_property_read_u32(const struct device_node *np,
 		s;						\
 		s = of_prop_next_string(prop, s))
 
+#define for_each_node_by_name(dn, name) \
+	for (dn = of_find_node_by_name(NULL, name); dn; \
+	     dn = of_find_node_by_name(dn, name))
+#define for_each_node_by_type(dn, type) \
+	for (dn = of_find_node_by_type(NULL, type); dn; \
+	     dn = of_find_node_by_type(dn, type))
+#define for_each_compatible_node(dn, type, compatible) \
+	for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
+	     dn = of_find_compatible_node(dn, type, compatible))
+#define for_each_matching_node(dn, matches) \
+	for (dn = of_find_matching_node(NULL, matches); dn; \
+	     dn = of_find_matching_node(dn, matches))
+#define for_each_matching_node_and_match(dn, matches, match) \
+	for (dn = of_find_matching_node_and_match(NULL, matches, match); \
+	     dn; dn = of_find_matching_node_and_match(dn, matches, match))
+
+#define for_each_child_of_node(parent, child) \
+	for (child = of_get_next_child(parent, NULL); child != NULL; \
+	     child = of_get_next_child(parent, child))
+#define for_each_available_child_of_node(parent, child) \
+	for (child = of_get_next_available_child(parent, NULL); child != NULL; \
+	     child = of_get_next_available_child(parent, child))
+
+#define for_each_node_with_property(dn, prop_name) \
+	for (dn = of_find_node_with_property(NULL, prop_name); dn; \
+	     dn = of_find_node_with_property(dn, prop_name))
+
+static inline int of_get_child_count(const struct device_node *np)
+{
+	struct device_node *child;
+	int num = 0;
+
+	for_each_child_of_node(np, child)
+		num++;
+
+	return num;
+}
+
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+	struct device_node *child;
+	int num = 0;
+
+	for_each_available_child_of_node(np, child)
+		num++;
+
+	return num;
+}
+
 #if defined(CONFIG_PROC_FS) && defined(CONFIG_PROC_DEVICETREE)
 extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *);
 extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop);
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 8d7dd6768cb7..ef370210ffb2 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -78,11 +78,13 @@ static inline int of_device_uevent_modalias(struct device *dev,
 
 static inline void of_device_node_put(struct device *dev) { }
 
-static inline const struct of_device_id *of_match_device(
+static inline const struct of_device_id *__of_match_device(
 		const struct of_device_id *matches, const struct device *dev)
 {
 	return NULL;
 }
+#define of_match_device(matches, dev)	\
+	__of_match_device(of_match_ptr(matches), (dev))
 
 static inline struct device_node *of_cpu_device_node_get(int cpu)
 {
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index e464b4e987e8..d1fe1a761047 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -228,9 +228,9 @@ PAGEFLAG(OwnerPriv1, owner_priv_1) TESTCLEARFLAG(OwnerPriv1, owner_priv_1)
 TESTPAGEFLAG(Writeback, writeback) TESTSCFLAG(Writeback, writeback)
 PAGEFLAG(MappedToDisk, mappedtodisk)
 
-/* PG_readahead is only used for file reads; PG_reclaim is only for writes */
+/* PG_readahead is only used for reads; PG_reclaim is only for writes */
 PAGEFLAG(Reclaim, reclaim) TESTCLEARFLAG(Reclaim, reclaim)
-PAGEFLAG(Readahead, reclaim)		/* Reminder to do async read-ahead */
+PAGEFLAG(Readahead, reclaim) TESTCLEARFLAG(Readahead, reclaim)
 
 #ifdef CONFIG_HIGHMEM
 /*
diff --git a/include/linux/pci.h b/include/linux/pci.h
index fb57c892b214..33aa2caf0f0c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1169,8 +1169,23 @@ void msi_remove_pci_irq_vectors(struct pci_dev *dev);
 void pci_restore_msi_state(struct pci_dev *dev);
 int pci_msi_enabled(void);
 int pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec);
+static inline int pci_enable_msi_exact(struct pci_dev *dev, int nvec)
+{
+	int rc = pci_enable_msi_range(dev, nvec, nvec);
+	if (rc < 0)
+		return rc;
+	return 0;
+}
 int pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries,
 			  int minvec, int maxvec);
+static inline int pci_enable_msix_exact(struct pci_dev *dev,
+					struct msix_entry *entries, int nvec)
+{
+	int rc = pci_enable_msix_range(dev, entries, nvec, nvec);
+	if (rc < 0)
+		return rc;
+	return 0;
+}
 #else
 static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; }
 static inline int pci_enable_msi_block(struct pci_dev *dev, int nvec)
@@ -1189,9 +1204,14 @@ static inline int pci_msi_enabled(void) { return 0; }
 static inline int pci_enable_msi_range(struct pci_dev *dev, int minvec,
 				       int maxvec)
 { return -ENOSYS; }
+static inline int pci_enable_msi_exact(struct pci_dev *dev, int nvec)
+{ return -ENOSYS; }
 static inline int pci_enable_msix_range(struct pci_dev *dev,
 		      struct msix_entry *entries, int minvec, int maxvec)
 { return -ENOSYS; }
+static inline int pci_enable_msix_exact(struct pci_dev *dev,
+		      struct msix_entry *entries, int nvec)
+{ return -ENOSYS; }
 #endif
 
 #ifdef CONFIG_PCIEPORTBUS
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index e273e5ac19c9..3f83459dbb20 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -146,7 +146,9 @@ static inline void phy_set_bus_width(struct phy *phy, int bus_width)
 	phy->attrs.bus_width = bus_width;
 }
 struct phy *phy_get(struct device *dev, const char *string);
+struct phy *phy_optional_get(struct device *dev, const char *string);
 struct phy *devm_phy_get(struct device *dev, const char *string);
+struct phy *devm_phy_optional_get(struct device *dev, const char *string);
 void phy_put(struct phy *phy);
 void devm_phy_put(struct device *dev, struct phy *phy);
 struct phy *of_phy_simple_xlate(struct device *dev,
@@ -232,11 +234,23 @@ static inline struct phy *phy_get(struct device *dev, const char *string)
 	return ERR_PTR(-ENOSYS);
 }
 
+static inline struct phy *phy_optional_get(struct device *dev,
+					   const char *string)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
 {
 	return ERR_PTR(-ENOSYS);
 }
 
+static inline struct phy *devm_phy_optional_get(struct device *dev,
+						const char *string)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
 static inline void phy_put(struct phy *phy)
 {
 }
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 555e27d717c0..c49a2585ff7d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -130,6 +130,7 @@ struct bio_list;
 struct fs_struct;
 struct perf_event_context;
 struct blk_plug;
+struct filename;
 
 /*
  * List of flags we want to share for kernel threads,
@@ -2336,7 +2337,7 @@ extern void do_group_exit(int);
 extern int allow_signal(int);
 extern int disallow_signal(int);
 
-extern int do_execve(const char *,
+extern int do_execve(struct filename *,
 		     const char __user * const __user *,
 		     const char __user * const __user *);
 extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f589c9af8cbf..3ebbbe7b6d05 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2916,5 +2916,22 @@ static inline bool skb_head_is_locked(const struct sk_buff *skb)
 {
 	return !skb->head_frag || skb_cloned(skb);
 }
+
+/**
+ * skb_gso_network_seglen - Return length of individual segments of a gso packet
+ *
+ * @skb: GSO skb
+ *
+ * skb_gso_network_seglen is used to determine the real size of the
+ * individual segments, including Layer3 (IP, IPv6) and L4 headers (TCP/UDP).
+ *
+ * The MAC/L2 header is not accounted for.
+ */
+static inline unsigned int skb_gso_network_seglen(const struct sk_buff *skb)
+{
+	unsigned int hdr_len = skb_transport_header(skb) -
+			       skb_network_header(skb);
+	return hdr_len + skb_gso_transport_seglen(skb);
+}
 #endif	/* __KERNEL__ */
 #endif	/* _LINUX_SKBUFF_H */
diff --git a/include/linux/slab.h b/include/linux/slab.h
index a060142aa5f5..9260abdd67df 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -205,8 +205,8 @@ struct kmem_cache {
 
 #ifdef CONFIG_SLUB
 /*
- * SLUB allocates up to order 2 pages directly and otherwise
- * passes the request to the page allocator.
+ * SLUB directly allocates requests fitting in to an order-1 page
+ * (PAGE_SIZE*2).  Larger requests are passed to the page allocator.
  */
 #define KMALLOC_SHIFT_HIGH	(PAGE_SHIFT + 1)
 #define KMALLOC_SHIFT_MAX	(MAX_ORDER + PAGE_SHIFT)
@@ -217,12 +217,12 @@ struct kmem_cache {
 
 #ifdef CONFIG_SLOB
 /*
- * SLOB passes all page size and larger requests to the page allocator.
+ * SLOB passes all requests larger than one page to the page allocator.
  * No kmalloc array is necessary since objects of different sizes can
  * be allocated from the same page.
  */
-#define KMALLOC_SHIFT_MAX	30
 #define KMALLOC_SHIFT_HIGH	PAGE_SHIFT
+#define KMALLOC_SHIFT_MAX	30
 #ifndef KMALLOC_SHIFT_LOW
 #define KMALLOC_SHIFT_LOW	3
 #endif
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 3834f43f9993..6ae004e437ea 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -188,6 +188,9 @@ static inline void kick_all_cpus_sync(void) {  }
  */
 extern void arch_disable_smp_support(void);
 
+extern void arch_enable_nonboot_cpus_begin(void);
+extern void arch_enable_nonboot_cpus_end(void);
+
 void smp_setup_processor_id(void);
 
 #endif /* __LINUX_SMP_H */
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index a1d4ca290862..4203c66d8803 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -273,7 +273,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  *	message while queuing transfers that arrive in the meantime. When the
  *	driver is finished with this message, it must call
  *	spi_finalize_current_message() so the subsystem can issue the next
- *	transfer
+ *	message
  * @unprepare_transfer_hardware: there are currently no more messages on the
  *	queue so the subsystem notifies the driver that it may relax the
  *	hardware by issuing this call
@@ -287,7 +287,10 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  *                  - return 1 if the transfer is still in progress. When
  *                    the driver is finished with this transfer it must
  *                    call spi_finalize_current_transfer() so the subsystem
- *                    can issue the next transfer
+ *                    can issue the next transfer. Note: transfer_one and
+ *                    transfer_one_message are mutually exclusive; when both
+ *                    are set, the generic subsystem does not call your
+ *                    transfer_one callback.
  * @unprepare_message: undo any work done by prepare_message().
  * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
  *	number. Any individual value may be -ENOENT for CS lines that
diff --git a/include/linux/usb.h b/include/linux/usb.h
index c716da18c668..7f6eb859873e 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1265,8 +1265,6 @@ typedef void (*usb_complete_t)(struct urb *);
  * @sg: scatter gather buffer list, the buffer size of each element in
  * 	the list (except the last) must be divisible by the endpoint's
  * 	max packet size if no_sg_constraint isn't set in 'struct usb_bus'
- * 	(FIXME: scatter-gather under xHCI is broken for periodic transfers.
- * 	Do not use urb->sg for interrupt endpoints for now, only bulk.)
  * @num_mapped_sgs: (internal) number of mapped sg entries
  * @num_sgs: number of entries in the sg list
  * @transfer_buffer_length: How big is transfer_buffer.  The transfer may
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index c557c6d096de..3a712e2e7d76 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -71,12 +71,14 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
 		THP_ZERO_PAGE_ALLOC,
 		THP_ZERO_PAGE_ALLOC_FAILED,
 #endif
+#ifdef CONFIG_DEBUG_TLBFLUSH
 #ifdef CONFIG_SMP
 		NR_TLB_REMOTE_FLUSH,	/* cpu tried to flush others' tlbs */
 		NR_TLB_REMOTE_FLUSH_RECEIVED,/* cpu received ipi for flush */
-#endif
+#endif /* CONFIG_SMP */
 		NR_TLB_LOCAL_FLUSH_ALL,
 		NR_TLB_LOCAL_FLUSH_ONE,
+#endif /* CONFIG_DEBUG_TLBFLUSH */
 		NR_VM_EVENT_ITEMS
 };
 
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index a67b38415768..67ce70c8279b 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -83,6 +83,14 @@ static inline void vm_events_fold_cpu(int cpu)
 #define count_vm_numa_events(x, y) do { (void)(y); } while (0)
 #endif /* CONFIG_NUMA_BALANCING */
 
+#ifdef CONFIG_DEBUG_TLBFLUSH
+#define count_vm_tlb_event(x)	   count_vm_event(x)
+#define count_vm_tlb_events(x, y)  count_vm_events(x, y)
+#else
+#define count_vm_tlb_event(x)     do {} while (0)
+#define count_vm_tlb_events(x, y) do { (void)(y); } while (0)
+#endif
+
 #define __count_zone_vm_events(item, zone, delta) \
 		__count_vm_events(item##_NORMAL - ZONE_NORMAL + \
 		zone_idx(zone), delta)
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 594521ba0d43..704f4f652d0a 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -419,10 +419,7 @@ __alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
 	static struct lock_class_key __key;				\
 	const char *__lock_name;					\
 									\
-	if (__builtin_constant_p(fmt))					\
-		__lock_name = (fmt);					\
-	else								\
-		__lock_name = #fmt;					\
+	__lock_name = #fmt#args;					\
 									\
 	__alloc_workqueue_key((fmt), (flags), (max_active),		\
 			      &__key, __lock_name, ##args);		\