Merge branch 'linus' into irq/genirq

include/drm/drm_edid.h

@@ -69,8 +69,8 @@ struct detailed_pixel_timing {
 	u8 hborder;
 	u8 vborder;
 	u8 unknown0:1;
-	u8 vsync_positive:1;
 	u8 hsync_positive:1;
+	u8 vsync_positive:1;
 	u8 separate_sync:2;
 	u8 stereo:1;
 	u8 unknown6:1;

include/linux/Kbuild

@@ -52,6 +52,7 @@ header-y += const.h
 header-y += cgroupstats.h
 header-y += cramfs_fs.h
 header-y += cycx_cfm.h
+header-y += dcbnl.h
 header-y += dlmconstants.h
 header-y += dlm_device.h
 header-y += dlm_netlink.h

include/linux/ata.h

@@ -89,6 +89,8 @@ enum {
 	ATA_ID_DLF		= 128,
 	ATA_ID_CSFO		= 129,
 	ATA_ID_CFA_POWER	= 160,
+	ATA_ID_CFA_KEY_MGMT	= 162,
+	ATA_ID_CFA_MODES	= 163,
 	ATA_ID_ROT_SPEED	= 217,
 	ATA_ID_PIO4		= (1 << 1),
 

include/linux/cpufreq.h

@@ -234,7 +234,6 @@ struct cpufreq_driver {
 	int	(*suspend)	(struct cpufreq_policy *policy, pm_message_t pmsg);
 	int	(*resume)	(struct cpufreq_policy *policy);
 	struct freq_attr	**attr;
-	bool			hide_interface;
 };
 
 /* flags */

include/linux/dcbnl.h

@@ -20,10 +20,12 @@
 #ifndef __LINUX_DCBNL_H__
 #define __LINUX_DCBNL_H__
 
+#include <linux/types.h>
+
 #define DCB_PROTO_VERSION 1
 
 struct dcbmsg {
-	unsigned char      dcb_family;
+	__u8               dcb_family;
 	__u8               cmd;
 	__u16              dcb_pad;
 };

include/linux/dmaengine.h

@@ -97,7 +97,6 @@ typedef struct { DECLARE_BITMAP(bits, DMA_TX_TYPE_END); } dma_cap_mask_t;
 
 /**
  * struct dma_chan_percpu - the per-CPU part of struct dma_chan
- * @refcount: local_t used for open-coded "bigref" counting
  * @memcpy_count: transaction counter
  * @bytes_transferred: byte counter
  */
@@ -114,9 +113,6 @@ struct dma_chan_percpu {
  * @cookie: last cookie value returned to client
  * @chan_id: channel ID for sysfs
  * @dev: class device for sysfs
- * @refcount: kref, used in "bigref" slow-mode
- * @slow_ref: indicates that the DMA channel is free
- * @rcu: the DMA channel's RCU head
  * @device_node: used to add this to the device chan list
  * @local: per-cpu pointer to a struct dma_chan_percpu
  * @client-count: how many clients are using this channel
@@ -213,8 +209,6 @@ struct dma_async_tx_descriptor {
  * @global_node: list_head for global dma_device_list
  * @cap_mask: one or more dma_capability flags
  * @max_xor: maximum number of xor sources, 0 if no capability
- * @refcount: reference count
- * @done: IO completion struct
  * @dev_id: unique device ID
  * @dev: struct device reference for dma mapping api
  * @device_alloc_chan_resources: allocate resources and return the
@@ -227,6 +221,7 @@ struct dma_async_tx_descriptor {
  * @device_prep_dma_interrupt: prepares an end of chain interrupt operation
  * @device_prep_slave_sg: prepares a slave dma operation
  * @device_terminate_all: terminate all pending operations
+ * @device_is_tx_complete: poll for transaction completion
  * @device_issue_pending: push pending transactions to hardware
  */
 struct dma_device {

include/linux/hdreg.h

@@ -511,7 +511,6 @@ struct hd_driveid {
 	unsigned short	words69_70[2];	/* reserved words 69-70
 					 * future command overlap and queuing
 					 */
-	/* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
 	unsigned short	words71_74[4];	/* reserved words 71-74
 					 * for IDENTIFY PACKET DEVICE command
 					 */

include/linux/ide.h

@@ -866,6 +866,7 @@ struct ide_host {
 	unsigned int	n_ports;
 	struct device	*dev[2];
 	unsigned int	(*init_chipset)(struct pci_dev *);
+	irq_handler_t	irq_handler;
 	unsigned long	host_flags;
 	void		*host_priv;
 	ide_hwif_t	*cur_port;	/* for hosts requiring serialization */

include/linux/io-mapping.h

@@ -91,8 +91,11 @@ io_mapping_unmap_atomic(void *vaddr)
 static inline void *
 io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
 {
+	resource_size_t phys_addr;
+
 	BUG_ON(offset >= mapping->size);
-	resource_size_t phys_addr = mapping->base + offset;
+	phys_addr = mapping->base + offset;
+
 	return ioremap_wc(phys_addr, PAGE_SIZE);
 }
 

include/linux/libata.h

@@ -275,7 +275,7 @@ enum {
 	 * advised to wait only for the following duration before
 	 * doing SRST.
 	 */
-	ATA_TMOUT_PMP_SRST_WAIT	= 1000,
+	ATA_TMOUT_PMP_SRST_WAIT	= 5000,
 
 	/* ATA bus states */
 	BUS_UNKNOWN		= 0,
@@ -530,6 +530,7 @@ struct ata_queued_cmd {
 	unsigned long		flags;		/* ATA_QCFLAG_xxx */
 	unsigned int		tag;
 	unsigned int		n_elem;
+	unsigned int		orig_n_elem;
 
 	int			dma_dir;
 
@@ -750,7 +751,8 @@ struct ata_port {
 	acpi_handle		acpi_handle;
 	struct ata_acpi_gtm	__acpi_init_gtm; /* use ata_acpi_init_gtm() */
 #endif
-	u8			sector_buf[ATA_SECT_SIZE]; /* owned by EH */
+	/* owned by EH */
+	u8			sector_buf[ATA_SECT_SIZE] ____cacheline_aligned;
 };
 
 /* The following initializer overrides a method to NULL whether one of

include/linux/netdevice.h

@@ -1079,6 +1079,7 @@ extern void		synchronize_net(void);
 extern int 		register_netdevice_notifier(struct notifier_block *nb);
 extern int		unregister_netdevice_notifier(struct notifier_block *nb);
 extern int		init_dummy_netdev(struct net_device *dev);
+extern void		netdev_resync_ops(struct net_device *dev);
 
 extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
 extern struct net_device	*dev_get_by_index(struct net *net, int ifindex);

include/linux/netfilter/xt_NFLOG.h

@@ -2,7 +2,7 @@
 #define _XT_NFLOG_TARGET
 
 #define XT_NFLOG_DEFAULT_GROUP		0x1
-#define XT_NFLOG_DEFAULT_THRESHOLD	1
+#define XT_NFLOG_DEFAULT_THRESHOLD	0
 
 #define XT_NFLOG_MASK			0x0
 

include/linux/rcuclassic.h

@@ -181,4 +181,10 @@ extern long rcu_batches_completed_bh(void);
 #define rcu_enter_nohz()	do { } while (0)
 #define rcu_exit_nohz()		do { } while (0)
 
+/* A context switch is a grace period for rcuclassic. */
+static inline int rcu_blocking_is_gp(void)
+{
+	return num_online_cpus() == 1;
+}
+
 #endif /* __LINUX_RCUCLASSIC_H */

include/linux/rcupdate.h

@@ -52,6 +52,9 @@ struct rcu_head {
 	void (*func)(struct rcu_head *head);
 };
 
+/* Internal to kernel, but needed by rcupreempt.h. */
+extern int rcu_scheduler_active;
+
 #if defined(CONFIG_CLASSIC_RCU)
 #include <linux/rcuclassic.h>
 #elif defined(CONFIG_TREE_RCU)
@@ -265,6 +268,7 @@ extern void rcu_barrier_sched(void);
 
 /* Internal to kernel */
 extern void rcu_init(void);
+extern void rcu_scheduler_starting(void);
 extern int rcu_needs_cpu(int cpu);
 
 #endif /* __LINUX_RCUPDATE_H */

include/linux/rcupreempt.h

@@ -142,4 +142,19 @@ static inline void rcu_exit_nohz(void)
 #define rcu_exit_nohz()		do { } while (0)
 #endif /* CONFIG_NO_HZ */
 
+/*
+ * A context switch is a grace period for rcupreempt synchronize_rcu()
+ * only during early boot, before the scheduler has been initialized.
+ * So, how the heck do we get a context switch?  Well, if the caller
+ * invokes synchronize_rcu(), they are willing to accept a context
+ * switch, so we simply pretend that one happened.
+ *
+ * After boot, there might be a blocked or preempted task in an RCU
+ * read-side critical section, so we cannot then take the fastpath.
+ */
+static inline int rcu_blocking_is_gp(void)
+{
+	return num_online_cpus() == 1 && !rcu_scheduler_active;
+}
+
 #endif /* __LINUX_RCUPREEMPT_H */

include/linux/rcutree.h

@@ -326,4 +326,10 @@ static inline void rcu_exit_nohz(void)
 }
 #endif /* CONFIG_NO_HZ */
 
+/* A context switch is a grace period for rcutree. */
+static inline int rcu_blocking_is_gp(void)
+{
+	return num_online_cpus() == 1;
+}
+
 #endif /* __LINUX_RCUTREE_H */

include/linux/sched.h

@@ -2291,9 +2291,13 @@ extern long sched_group_rt_runtime(struct task_group *tg);
 extern int sched_group_set_rt_period(struct task_group *tg,
 				      long rt_period_us);
 extern long sched_group_rt_period(struct task_group *tg);
+extern int sched_rt_can_attach(struct task_group *tg, struct task_struct *tsk);
 #endif
 #endif
 
+extern int task_can_switch_user(struct user_struct *up,
+					struct task_struct *tsk);
+
 #ifdef CONFIG_TASK_XACCT
 static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
 {

include/linux/serio.h

@@ -212,7 +212,7 @@ static inline void serio_unpin_driver(struct serio *serio)
 #define SERIO_FUJITSU	0x35
 #define SERIO_ZHENHUA	0x36
 #define SERIO_INEXIO	0x37
-#define SERIO_TOUCHIT213	0x37
+#define SERIO_TOUCHIT213	0x38
 #define SERIO_W8001	0x39
 
 #endif

include/net/net_namespace.h

@@ -109,11 +109,6 @@ extern struct list_head net_namespace_list;
 #ifdef CONFIG_NET_NS
 extern void __put_net(struct net *net);
 
-static inline int net_alive(struct net *net)
-{
-	return net && atomic_read(&net->count);
-}
-
 static inline struct net *get_net(struct net *net)
 {
 	atomic_inc(&net->count);
@@ -145,11 +140,6 @@ int net_eq(const struct net *net1, const struct net *net2)
 }
 #else
 
-static inline int net_alive(struct net *net)
-{
-	return 1;
-}
-
 static inline struct net *get_net(struct net *net)
 {
 	return net;
@@ -234,6 +224,23 @@ struct pernet_operations {
 	void (*exit)(struct net *net);
 };
 
+/*
+ * Use these carefully.  If you implement a network device and it
+ * needs per network namespace operations use device pernet operations,
+ * otherwise use pernet subsys operations.
+ *
+ * This is critically important.  Most of the network code cleanup
+ * runs with the assumption that dev_remove_pack has been called so no
+ * new packets will arrive during and after the cleanup functions have
+ * been called.  dev_remove_pack is not per namespace so instead the
+ * guarantee of no more packets arriving in a network namespace is
+ * provided by ensuring that all network devices and all sockets have
+ * left the network namespace before the cleanup methods are called.
+ *
+ * For the longest time the ipv4 icmp code was registered as a pernet
+ * device which caused kernel oops, and panics during network
+ * namespace cleanup.   So please don't get this wrong.
+ */
 extern int register_pernet_subsys(struct pernet_operations *);
 extern void unregister_pernet_subsys(struct pernet_operations *);
 extern int register_pernet_gen_subsys(int *id, struct pernet_operations *);

include/net/netfilter/nf_conntrack_core.h

@@ -59,7 +59,7 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
 	struct nf_conn *ct = (struct nf_conn *)skb->nfct;
 	int ret = NF_ACCEPT;
 
-	if (ct) {
+	if (ct && ct != &nf_conntrack_untracked) {
 		if (!nf_ct_is_confirmed(ct) && !nf_ct_is_dying(ct))
 			ret = __nf_conntrack_confirm(skb);
 		nf_ct_deliver_cached_events(ct);