Merge branch 'linus' into tracing/ftrace

include/linux/cgroup.h

@@ -25,7 +25,6 @@ struct cgroup;
 
 extern int cgroup_init_early(void);
 extern int cgroup_init(void);
-extern void cgroup_init_smp(void);
 extern void cgroup_lock(void);
 extern bool cgroup_lock_live_group(struct cgroup *cgrp);
 extern void cgroup_unlock(void);
@@ -348,8 +347,6 @@ struct cgroup_subsys {
 	struct cgroupfs_root *root;
 
 	struct list_head sibling;
-
-	void *private;
 };
 
 #define SUBSYS(_x) extern struct cgroup_subsys _x ## _subsys;
@@ -410,7 +407,6 @@ void cgroup_mm_owner_callbacks(struct task_struct *old,
 
 static inline int cgroup_init_early(void) { return 0; }
 static inline int cgroup_init(void) { return 0; }
-static inline void cgroup_init_smp(void) {}
 static inline void cgroup_fork(struct task_struct *p) {}
 static inline void cgroup_fork_callbacks(struct task_struct *p) {}
 static inline void cgroup_post_fork(struct task_struct *p) {}

include/linux/freezer.h

@@ -44,11 +44,6 @@ static inline bool should_send_signal(struct task_struct *p)
 	return !(p->flags & PF_FREEZER_NOSIG);
 }
 
-/*
- * Wake up a frozen process
- */
-extern int __thaw_process(struct task_struct *p);
-
 /* Takes and releases task alloc lock using task_lock() */
 extern int thaw_process(struct task_struct *p);
 

include/linux/fs.h

@@ -489,13 +489,6 @@ struct address_space_operations {
 	int (*readpages)(struct file *filp, struct address_space *mapping,
 			struct list_head *pages, unsigned nr_pages);
 
-	/*
-	 * ext3 requires that a successful prepare_write() call be followed
-	 * by a commit_write() call - they must be balanced
-	 */
-	int (*prepare_write)(struct file *, struct page *, unsigned, unsigned);
-	int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
-
 	int (*write_begin)(struct file *, struct address_space *mapping,
 				loff_t pos, unsigned len, unsigned flags,
 				struct page **pagep, void **fsdata);

include/linux/ftrace.h

@@ -8,7 +8,7 @@
 #include <linux/types.h>
 #include <linux/kallsyms.h>
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 
 extern int ftrace_enabled;
 extern int
@@ -36,16 +36,14 @@ void clear_ftrace_function(void);
 
 extern void ftrace_stub(unsigned long a0, unsigned long a1);
 
-#else /* !CONFIG_FTRACE */
+#else /* !CONFIG_FUNCTION_TRACER */
 # define register_ftrace_function(ops) do { } while (0)
 # define unregister_ftrace_function(ops) do { } while (0)
 # define clear_ftrace_function(ops) do { } while (0)
-static inline void ftrace_kill_atomic(void) { }
-#endif /* CONFIG_FTRACE */
+static inline void ftrace_kill(void) { }
+#endif /* CONFIG_FUNCTION_TRACER */
 
 #ifdef CONFIG_DYNAMIC_FTRACE
-# define FTRACE_HASHBITS	10
-# define FTRACE_HASHSIZE	(1<<FTRACE_HASHBITS)
 
 enum {
 	FTRACE_FL_FREE		= (1 << 0),
@@ -58,9 +56,9 @@ enum {
 };
 
 struct dyn_ftrace {
-	struct hlist_node node;
-	unsigned long	  ip; /* address of mcount call-site */
-	unsigned long	  flags;
+	struct list_head	list;
+	unsigned long		ip; /* address of mcount call-site */
+	unsigned long		flags;
 };
 
 int ftrace_force_update(void);
@@ -71,14 +69,33 @@ extern int ftrace_ip_converted(unsigned long ip);
 extern unsigned char *ftrace_nop_replace(void);
 extern unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr);
 extern int ftrace_dyn_arch_init(void *data);
-extern int ftrace_mcount_set(unsigned long *data);
-extern int ftrace_modify_code(unsigned long ip, unsigned char *old_code,
-			      unsigned char *new_code);
 extern int ftrace_update_ftrace_func(ftrace_func_t func);
 extern void ftrace_caller(void);
 extern void ftrace_call(void);
 extern void mcount_call(void);
 
+/**
+ * ftrace_modify_code - modify code segment
+ * @ip: the address of the code segment
+ * @old_code: the contents of what is expected to be there
+ * @new_code: the code to patch in
+ *
+ * This is a very sensitive operation and great care needs
+ * to be taken by the arch.  The operation should carefully
+ * read the location, check to see if what is read is indeed
+ * what we expect it to be, and then on success of the compare,
+ * it should write to the location.
+ *
+ * Return must be:
+ *  0 on success
+ *  -EFAULT on error reading the location
+ *  -EINVAL on a failed compare of the contents
+ *  -EPERM  on error writing to the location
+ * Any other value will be considered a failure.
+ */
+extern int ftrace_modify_code(unsigned long ip, unsigned char *old_code,
+			      unsigned char *new_code);
+
 extern int skip_trace(unsigned long ip);
 
 extern void ftrace_release(void *start, unsigned long size);
@@ -97,11 +114,10 @@ static inline void ftrace_release(void *start, unsigned long size) { }
 
 /* totally disable ftrace - can not re-enable after this */
 void ftrace_kill(void);
-void ftrace_kill_atomic(void);
 
 static inline void tracer_disable(void)
 {
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 	ftrace_enabled = 0;
 #endif
 }
@@ -113,7 +129,7 @@ static inline void tracer_disable(void)
  */
 static inline int __ftrace_enabled_save(void)
 {
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 	int saved_ftrace_enabled = ftrace_enabled;
 	ftrace_enabled = 0;
 	return saved_ftrace_enabled;
@@ -124,7 +140,7 @@ static inline int __ftrace_enabled_save(void)
 
 static inline void __ftrace_enabled_restore(int enabled)
 {
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 	ftrace_enabled = enabled;
 #endif
 }

include/linux/hid.h

@@ -410,6 +410,7 @@ struct hid_output_fifo {
 #define HID_SUSPENDED		5
 #define HID_CLEAR_HALT		6
 #define HID_DISCONNECTED	7
+#define HID_STARTED		8
 
 struct hid_input {
 	struct list_head list;

include/linux/kernel.h

@@ -116,6 +116,8 @@ extern int _cond_resched(void);
 # define might_resched() do { } while (0)
 #endif
 
+#ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
+  void __might_sleep(char *file, int line);
 /**
  * might_sleep - annotation for functions that can sleep
  *
@@ -126,8 +128,6 @@ extern int _cond_resched(void);
  * be bitten later when the calling function happens to sleep when it is not
  * supposed to.
  */
-#ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
-  void __might_sleep(char *file, int line);
 # define might_sleep() \
 	do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0)
 #else

include/linux/kvm.h

@@ -489,6 +489,9 @@ struct kvm_assigned_pci_dev {
 	__u32 busnr;
 	__u32 devfn;
 	__u32 flags;
+	union {
+		__u32 reserved[12];
+	};
 };
 
 struct kvm_assigned_irq {
@@ -496,6 +499,9 @@ struct kvm_assigned_irq {
 	__u32 host_irq;
 	__u32 guest_irq;
 	__u32 flags;
+	union {
+		__u32 reserved[12];
+	};
 };
 
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)

include/linux/kvm_host.h

@@ -37,6 +37,8 @@
 #define KVM_REQ_UNHALT             6
 #define KVM_REQ_MMU_SYNC           7
 
+#define KVM_USERSPACE_IRQ_SOURCE_ID	0
+
 struct kvm_vcpu;
 extern struct kmem_cache *kvm_vcpu_cache;
 
@@ -306,15 +308,18 @@ struct kvm_assigned_dev_kernel {
 	int host_irq;
 	int guest_irq;
 	int irq_requested;
+	int irq_source_id;
 	struct pci_dev *dev;
 	struct kvm *kvm;
 };
-void kvm_set_irq(struct kvm *kvm, int irq, int level);
+void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
 void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi);
 void kvm_register_irq_ack_notifier(struct kvm *kvm,
 				   struct kvm_irq_ack_notifier *kian);
 void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
 				     struct kvm_irq_ack_notifier *kian);
+int kvm_request_irq_source_id(struct kvm *kvm);
+void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
 
 #ifdef CONFIG_DMAR
 int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,

include/linux/mod_devicetable.h

@@ -135,6 +135,7 @@ struct usb_device_id {
 
 struct hid_device_id {
 	__u16 bus;
+	__u16 pad1;
 	__u32 vendor;
 	__u32 product;
 	kernel_ulong_t driver_data

include/linux/phonet.h

@@ -72,6 +72,7 @@ struct phonetmsg {
 	} pn_msg_u;
 };
 #define PN_COMMON_MESSAGE	0xF0
+#define PN_COMMGR		0x10
 #define PN_PREFIX		0xE0 /* resource for extended messages */
 #define pn_submsg_id		pn_msg_u.base.pn_submsg_id
 #define pn_e_submsg_id		pn_msg_u.ext.pn_e_submsg_id

include/linux/resource.h

@@ -59,10 +59,10 @@ struct rlimit {
 #define _STK_LIM	(8*1024*1024)
 
 /*
- * GPG wants 32kB of mlocked memory, to make sure pass phrases
+ * GPG2 wants 64kB of mlocked memory, to make sure pass phrases
  * and other sensitive information are never written to disk.
  */
-#define MLOCK_LIMIT	(8 * PAGE_SIZE)
+#define MLOCK_LIMIT	((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024)
 
 /*
  * Due to binary compatibility, the actual resource numbers

include/linux/sched.h

@@ -936,7 +936,6 @@ struct sched_class {
 	void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup);
 	void (*dequeue_task) (struct rq *rq, struct task_struct *p, int sleep);
 	void (*yield_task) (struct rq *rq);
-	int  (*select_task_rq)(struct task_struct *p, int sync);
 
 	void (*check_preempt_curr) (struct rq *rq, struct task_struct *p, int sync);
 
@@ -944,6 +943,8 @@ struct sched_class {
 	void (*put_prev_task) (struct rq *rq, struct task_struct *p);
 
 #ifdef CONFIG_SMP
+	int  (*select_task_rq)(struct task_struct *p, int sync);
+
 	unsigned long (*load_balance) (struct rq *this_rq, int this_cpu,
 			struct rq *busiest, unsigned long max_load_move,
 			struct sched_domain *sd, enum cpu_idle_type idle,
@@ -955,16 +956,17 @@ struct sched_class {
 	void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
 	void (*post_schedule) (struct rq *this_rq);
 	void (*task_wake_up) (struct rq *this_rq, struct task_struct *task);
-#endif
 
-	void (*set_curr_task) (struct rq *rq);
-	void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
-	void (*task_new) (struct rq *rq, struct task_struct *p);
 	void (*set_cpus_allowed)(struct task_struct *p,
 				 const cpumask_t *newmask);
 
 	void (*rq_online)(struct rq *rq);
 	void (*rq_offline)(struct rq *rq);
+#endif
+
+	void (*set_curr_task) (struct rq *rq);
+	void (*task_tick) (struct rq *rq, struct task_struct *p, int queued);
+	void (*task_new) (struct rq *rq, struct task_struct *p);
 
 	void (*switched_from) (struct rq *this_rq, struct task_struct *task,
 			       int running);

include/linux/security.h

@@ -1585,6 +1585,7 @@ int security_syslog(int type);
 int security_settime(struct timespec *ts, struct timezone *tz);
 int security_vm_enough_memory(long pages);
 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
+int security_vm_enough_memory_kern(long pages);
 int security_bprm_alloc(struct linux_binprm *bprm);
 void security_bprm_free(struct linux_binprm *bprm);
 void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe);
@@ -1820,6 +1821,11 @@ static inline int security_vm_enough_memory(long pages)
 	return cap_vm_enough_memory(current->mm, pages);
 }
 
+static inline int security_vm_enough_memory_kern(long pages)
+{
+	return cap_vm_enough_memory(current->mm, pages);
+}
+
 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 {
 	return cap_vm_enough_memory(mm, pages);

include/linux/spi/spi_bitbang.h

@@ -18,6 +18,9 @@
  *	duplex (MicroWire) controllers.  Provide chipslect() and txrx_bufs(),
  *	and custom setup()/cleanup() methods.
  */
+
+#include <linux/workqueue.h>
+
 struct spi_bitbang {
 	struct workqueue_struct	*workqueue;
 	struct work_struct	work;