31 files changed, 663 insertions, 260 deletions

diff --git a/kernel/compat.c b/kernel/compat.c
index 75573e5d27b..6952dd05730 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -678,7 +678,7 @@ int get_compat_sigevent(struct sigevent *event,
 		? -EFAULT : 0;
 }
 
-long compat_get_bitmap(unsigned long *mask, compat_ulong_t __user *umask,
+long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
 		       unsigned long bitmap_size)
 {
 	int i, j;
@@ -982,4 +982,37 @@ asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_pages,
 	}
 	return sys_move_pages(pid, nr_pages, pages, nodes, status, flags);
 }
+
+asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
+			compat_ulong_t maxnode,
+			const compat_ulong_t __user *old_nodes,
+			const compat_ulong_t __user *new_nodes)
+{
+	unsigned long __user *old = NULL;
+	unsigned long __user *new = NULL;
+	nodemask_t tmp_mask;
+	unsigned long nr_bits;
+	unsigned long size;
+
+	nr_bits = min_t(unsigned long, maxnode - 1, MAX_NUMNODES);
+	size = ALIGN(nr_bits, BITS_PER_LONG) / 8;
+	if (old_nodes) {
+		if (compat_get_bitmap(nodes_addr(tmp_mask), old_nodes, nr_bits))
+			return -EFAULT;
+		old = compat_alloc_user_space(new_nodes ? size * 2 : size);
+		if (new_nodes)
+			new = old + size / sizeof(unsigned long);
+		if (copy_to_user(old, nodes_addr(tmp_mask), size))
+			return -EFAULT;
+	}
+	if (new_nodes) {
+		if (compat_get_bitmap(nodes_addr(tmp_mask), new_nodes, nr_bits))
+			return -EFAULT;
+		if (new == NULL)
+			new = compat_alloc_user_space(size);
+		if (copy_to_user(new, nodes_addr(tmp_mask), size))
+			return -EFAULT;
+	}
+	return sys_migrate_pages(pid, nr_bits + 1, old, new);
+}
 #endif
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 32c96628463..272254f20d9 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -19,7 +19,7 @@
 static DEFINE_MUTEX(cpu_add_remove_lock);
 static DEFINE_MUTEX(cpu_bitmask_lock);
 
-static __cpuinitdata BLOCKING_NOTIFIER_HEAD(cpu_chain);
+static __cpuinitdata RAW_NOTIFIER_HEAD(cpu_chain);
 
 /* If set, cpu_up and cpu_down will return -EBUSY and do nothing.
  * Should always be manipulated under cpu_add_remove_lock
@@ -58,8 +58,8 @@ void unlock_cpu_hotplug(void)
 		recursive_depth--;
 		return;
 	}
-	mutex_unlock(&cpu_bitmask_lock);
 	recursive = NULL;
+	mutex_unlock(&cpu_bitmask_lock);
 }
 EXPORT_SYMBOL_GPL(unlock_cpu_hotplug);
 
@@ -68,7 +68,11 @@ EXPORT_SYMBOL_GPL(unlock_cpu_hotplug);
 /* Need to know about CPUs going up/down? */
 int __cpuinit register_cpu_notifier(struct notifier_block *nb)
 {
-	return blocking_notifier_chain_register(&cpu_chain, nb);
+	int ret;
+	mutex_lock(&cpu_add_remove_lock);
+	ret = raw_notifier_chain_register(&cpu_chain, nb);
+	mutex_unlock(&cpu_add_remove_lock);
+	return ret;
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -77,7 +81,9 @@ EXPORT_SYMBOL(register_cpu_notifier);
 
 void unregister_cpu_notifier(struct notifier_block *nb)
 {
-	blocking_notifier_chain_unregister(&cpu_chain, nb);
+	mutex_lock(&cpu_add_remove_lock);
+	raw_notifier_chain_unregister(&cpu_chain, nb);
+	mutex_unlock(&cpu_add_remove_lock);
 }
 EXPORT_SYMBOL(unregister_cpu_notifier);
 
@@ -126,7 +132,7 @@ static int _cpu_down(unsigned int cpu)
 	if (!cpu_online(cpu))
 		return -EINVAL;
 
-	err = blocking_notifier_call_chain(&cpu_chain, CPU_DOWN_PREPARE,
+	err = raw_notifier_call_chain(&cpu_chain, CPU_DOWN_PREPARE,
 						(void *)(long)cpu);
 	if (err == NOTIFY_BAD) {
 		printk("%s: attempt to take down CPU %u failed\n",
@@ -144,18 +150,18 @@ static int _cpu_down(unsigned int cpu)
 	p = __stop_machine_run(take_cpu_down, NULL, cpu);
 	mutex_unlock(&cpu_bitmask_lock);
 
-	if (IS_ERR(p)) {
+	if (IS_ERR(p) || cpu_online(cpu)) {
 		/* CPU didn't die: tell everyone.  Can't complain. */
-		if (blocking_notifier_call_chain(&cpu_chain, CPU_DOWN_FAILED,
+		if (raw_notifier_call_chain(&cpu_chain, CPU_DOWN_FAILED,
 				(void *)(long)cpu) == NOTIFY_BAD)
 			BUG();
 
-		err = PTR_ERR(p);
-		goto out_allowed;
-	}
-
-	if (cpu_online(cpu))
+		if (IS_ERR(p)) {
+			err = PTR_ERR(p);
+			goto out_allowed;
+		}
 		goto out_thread;
+	}
 
 	/* Wait for it to sleep (leaving idle task). */
 	while (!idle_cpu(cpu))
@@ -169,7 +175,7 @@ static int _cpu_down(unsigned int cpu)
 	put_cpu();
 
 	/* CPU is completely dead: tell everyone.  Too late to complain. */
-	if (blocking_notifier_call_chain(&cpu_chain, CPU_DEAD,
+	if (raw_notifier_call_chain(&cpu_chain, CPU_DEAD,
 			(void *)(long)cpu) == NOTIFY_BAD)
 		BUG();
 
@@ -206,7 +212,7 @@ static int __devinit _cpu_up(unsigned int cpu)
 	if (cpu_online(cpu) || !cpu_present(cpu))
 		return -EINVAL;
 
-	ret = blocking_notifier_call_chain(&cpu_chain, CPU_UP_PREPARE, hcpu);
+	ret = raw_notifier_call_chain(&cpu_chain, CPU_UP_PREPARE, hcpu);
 	if (ret == NOTIFY_BAD) {
 		printk("%s: attempt to bring up CPU %u failed\n",
 				__FUNCTION__, cpu);
@@ -223,11 +229,11 @@ static int __devinit _cpu_up(unsigned int cpu)
 	BUG_ON(!cpu_online(cpu));
 
 	/* Now call notifier in preparation. */
-	blocking_notifier_call_chain(&cpu_chain, CPU_ONLINE, hcpu);
+	raw_notifier_call_chain(&cpu_chain, CPU_ONLINE, hcpu);
 
 out_notify:
 	if (ret != 0)
-		blocking_notifier_call_chain(&cpu_chain,
+		raw_notifier_call_chain(&cpu_chain,
 				CPU_UP_CANCELED, hcpu);
 
 	return ret;
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index 36752f124c6..66a0ea48751 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -66,6 +66,7 @@ static void delayacct_end(struct timespec *start, struct timespec *end,
 {
 	struct timespec ts;
 	s64 ns;
+	unsigned long flags;
 
 	do_posix_clock_monotonic_gettime(end);
 	ts = timespec_sub(*end, *start);
@@ -73,10 +74,10 @@ static void delayacct_end(struct timespec *start, struct timespec *end,
 	if (ns < 0)
 		return;
 
-	spin_lock(&current->delays->lock);
+	spin_lock_irqsave(&current->delays->lock, flags);
 	*total += ns;
 	(*count)++;
-	spin_unlock(&current->delays->lock);
+	spin_unlock_irqrestore(&current->delays->lock, flags);
 }
 
 void __delayacct_blkio_start(void)
@@ -104,6 +105,7 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	s64 tmp;
 	struct timespec ts;
 	unsigned long t1,t2,t3;
+	unsigned long flags;
 
 	/* Though tsk->delays accessed later, early exit avoids
 	 * unnecessary returning of other data
@@ -136,14 +138,14 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 
 	/* zero XXX_total, non-zero XXX_count implies XXX stat overflowed */
 
-	spin_lock(&tsk->delays->lock);
+	spin_lock_irqsave(&tsk->delays->lock, flags);
 	tmp = d->blkio_delay_total + tsk->delays->blkio_delay;
 	d->blkio_delay_total = (tmp < d->blkio_delay_total) ? 0 : tmp;
 	tmp = d->swapin_delay_total + tsk->delays->swapin_delay;
 	d->swapin_delay_total = (tmp < d->swapin_delay_total) ? 0 : tmp;
 	d->blkio_count += tsk->delays->blkio_count;
 	d->swapin_count += tsk->delays->swapin_count;
-	spin_unlock(&tsk->delays->lock);
+	spin_unlock_irqrestore(&tsk->delays->lock, flags);
 
 done:
 	return 0;
@@ -152,11 +154,12 @@ done:
 __u64 __delayacct_blkio_ticks(struct task_struct *tsk)
 {
 	__u64 ret;
+	unsigned long flags;
 
-	spin_lock(&tsk->delays->lock);
+	spin_lock_irqsave(&tsk->delays->lock, flags);
 	ret = nsec_to_clock_t(tsk->delays->blkio_delay +
 				tsk->delays->swapin_delay);
-	spin_unlock(&tsk->delays->lock);
+	spin_unlock_irqrestore(&tsk->delays->lock, flags);
 	return ret;
 }
 
diff --git a/kernel/exit.c b/kernel/exit.c
index f250a5e3e28..06de6c4e8ca 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -128,6 +128,7 @@ static void __exit_signal(struct task_struct *tsk)
 	flush_sigqueue(&tsk->pending);
 	if (sig) {
 		flush_sigqueue(&sig->shared_pending);
+		taskstats_tgid_free(sig);
 		__cleanup_signal(sig);
 	}
 }
diff --git a/kernel/fork.c b/kernel/fork.c
index 7dc6140baac..3da978eec79 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -830,7 +830,7 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts
 	if (clone_flags & CLONE_THREAD) {
 		atomic_inc(&current->signal->count);
 		atomic_inc(&current->signal->live);
-		taskstats_tgid_alloc(current->signal);
+		taskstats_tgid_alloc(current);
 		return 0;
 	}
 	sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
@@ -897,7 +897,6 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts
 void __cleanup_signal(struct signal_struct *sig)
 {
 	exit_thread_group_keys(sig);
-	taskstats_tgid_free(sig);
 	kmem_cache_free(signal_cachep, sig);
 }
 
@@ -984,6 +983,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	if (!p)
 		goto fork_out;
 
+	rt_mutex_init_task(p);
+
 #ifdef CONFIG_TRACE_IRQFLAGS
 	DEBUG_LOCKS_WARN_ON(!p->hardirqs_enabled);
 	DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
@@ -1088,8 +1089,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	p->lockdep_recursion = 0;
 #endif
 
-	rt_mutex_init_task(p);
-
 #ifdef CONFIG_DEBUG_MUTEXES
 	p->blocked_on = NULL; /* not blocked yet */
 #endif
diff --git a/kernel/futex.c b/kernel/futex.c
index b364e002619..93ef30ba209 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1507,6 +1507,13 @@ static int futex_fd(u32 __user *uaddr, int signal)
 	struct futex_q *q;
 	struct file *filp;
 	int ret, err;
+	static unsigned long printk_interval;
+
+	if (printk_timed_ratelimit(&printk_interval, 60 * 60 * 1000)) {
+		printk(KERN_WARNING "Process `%s' used FUTEX_FD, which "
+		    	"will be removed from the kernel in June 2007\n",
+			current->comm);
+	}
 
 	ret = -EINVAL;
 	if (!valid_signal(signal))
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 11c99697acf..ebfd24a4185 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -233,6 +233,8 @@ void irq_chip_set_defaults(struct irq_chip *chip)
 		chip->shutdown = chip->disable;
 	if (!chip->name)
 		chip->name = chip->typename;
+	if (!chip->end)
+		chip->end = dummy_irq_chip.end;
 }
 
 static inline void mask_ack_irq(struct irq_desc *desc, int irq)
@@ -499,7 +501,8 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
 #endif /* CONFIG_SMP */
 
 void
-__set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained)
+__set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
+		  const char *name)
 {
 	struct irq_desc *desc;
 	unsigned long flags;
@@ -540,6 +543,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained)
 		desc->depth = 1;
 	}
 	desc->handle_irq = handle;
+	desc->name = name;
 
 	if (handle != handle_bad_irq && is_chained) {
 		desc->status &= ~IRQ_DISABLED;
@@ -555,30 +559,13 @@ set_irq_chip_and_handler(unsigned int irq, struct irq_chip *chip,
 			 irq_flow_handler_t handle)
 {
 	set_irq_chip(irq, chip);
-	__set_irq_handler(irq, handle, 0);
+	__set_irq_handler(irq, handle, 0, NULL);
 }
 
-/*
- * Get a descriptive string for the highlevel handler, for
- * /proc/interrupts output:
- */
-const char *
-handle_irq_name(irq_flow_handler_t handle)
+void
+set_irq_chip_and_handler_name(unsigned int irq, struct irq_chip *chip,
+			      irq_flow_handler_t handle, const char *name)
 {
-	if (handle == handle_level_irq)
-		return "level  ";
-	if (handle == handle_fasteoi_irq)
-		return "fasteoi";
-	if (handle == handle_edge_irq)
-		return "edge   ";
-	if (handle == handle_simple_irq)
-		return "simple ";
-#ifdef CONFIG_SMP
-	if (handle == handle_percpu_irq)
-		return "percpu ";
-#endif
-	if (handle == handle_bad_irq)
-		return "bad    ";
-
-	return NULL;
+	set_irq_chip(irq, chip);
+	__set_irq_handler(irq, handle, 0, name);
 }
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 6879202afe9..b385878c6e8 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -216,6 +216,7 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 {
 	struct irq_desc *desc = irq_desc + irq;
 	struct irqaction *old, **p;
+	const char *old_name = NULL;
 	unsigned long flags;
 	int shared = 0;
 
@@ -255,8 +256,10 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 		 * set the trigger type must match.
 		 */
 		if (!((old->flags & new->flags) & IRQF_SHARED) ||
-		    ((old->flags ^ new->flags) & IRQF_TRIGGER_MASK))
+		    ((old->flags ^ new->flags) & IRQF_TRIGGER_MASK)) {
+			old_name = old->name;
 			goto mismatch;
+		}
 
 #if defined(CONFIG_IRQ_PER_CPU)
 		/* All handlers must agree on per-cpuness */
@@ -322,11 +325,13 @@ int setup_irq(unsigned int irq, struct irqaction *new)
 	return 0;
 
 mismatch:
-	spin_unlock_irqrestore(&desc->lock, flags);
 	if (!(new->flags & IRQF_PROBE_SHARED)) {
 		printk(KERN_ERR "IRQ handler type mismatch for IRQ %d\n", irq);
+		if (old_name)
+			printk(KERN_ERR "current handler: %s\n", old_name);
 		dump_stack();
 	}
+	spin_unlock_irqrestore(&desc->lock, flags);
 	return -EBUSY;
 }
 
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 607c7809ad0..9a352667007 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -57,7 +57,7 @@ static int irq_affinity_write_proc(struct file *file, const char __user *buffer,
 	if (!irq_desc[irq].chip->set_affinity || no_irq_affinity)
 		return -EIO;
 
-	err = cpumask_parse(buffer, count, new_value);
+	err = cpumask_parse_user(buffer, count, new_value);
 	if (err)
 		return err;
 
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 543ea2e5ad9..9c7e2e4c1fe 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -147,7 +147,11 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
 	if (unlikely(irqfixup)) {
 		/* Don't punish working computers */
 		if ((irqfixup == 2 && irq == 0) || action_ret == IRQ_NONE) {
-			int ok = misrouted_irq(irq);
+			int ok;
+
+			spin_unlock(&desc->lock);
+			ok = misrouted_irq(irq);
+			spin_lock(&desc->lock);
 			if (action_ret == IRQ_NONE)
 				desc->irqs_unhandled -= ok;
 		}
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 4c055346100..c9fefdb1a7d 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -575,6 +575,8 @@ static noinline int print_circular_bug_tail(void)
 	return 0;
 }
 
+#define RECURSION_LIMIT 40
+
 static int noinline print_infinite_recursion_bug(void)
 {
 	__raw_spin_unlock(&hash_lock);
@@ -595,7 +597,7 @@ check_noncircular(struct lock_class *source, unsigned int depth)
 	debug_atomic_inc(&nr_cyclic_check_recursions);
 	if (depth > max_recursion_depth)
 		max_recursion_depth = depth;
-	if (depth >= 20)
+	if (depth >= RECURSION_LIMIT)
 		return print_infinite_recursion_bug();
 	/*
 	 * Check this lock's dependency list:
@@ -645,7 +647,7 @@ find_usage_forwards(struct lock_class *source, unsigned int depth)
 
 	if (depth > max_recursion_depth)
 		max_recursion_depth = depth;
-	if (depth >= 20)
+	if (depth >= RECURSION_LIMIT)
 		return print_infinite_recursion_bug();
 
 	debug_atomic_inc(&nr_find_usage_forwards_checks);
@@ -684,7 +686,7 @@ find_usage_backwards(struct lock_class *source, unsigned int depth)
 
 	if (depth > max_recursion_depth)
 		max_recursion_depth = depth;
-	if (depth >= 20)
+	if (depth >= RECURSION_LIMIT)
 		return print_infinite_recursion_bug();
 
 	debug_atomic_inc(&nr_find_usage_backwards_checks);
@@ -1079,7 +1081,8 @@ static int static_obj(void *obj)
 	 */
 	for_each_possible_cpu(i) {
 		start = (unsigned long) &__per_cpu_start + per_cpu_offset(i);
-		end   = (unsigned long) &__per_cpu_end   + per_cpu_offset(i);
+		end   = (unsigned long) &__per_cpu_start + PERCPU_ENOUGH_ROOM
+					+ per_cpu_offset(i);
 
 		if ((addr >= start) && (addr < end))
 			return 1;
@@ -1114,8 +1117,6 @@ static int count_matching_names(struct lock_class *new_class)
 	return count + 1;
 }
 
-extern void __error_too_big_MAX_LOCKDEP_SUBCLASSES(void);
-
 /*
  * Register a lock's class in the hash-table, if the class is not present
  * yet. Otherwise we look it up. We cache the result in the lock object
@@ -1153,8 +1154,7 @@ look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
 	 * (or spin_lock_init()) call - which acts as the key. For static
 	 * locks we use the lock object itself as the key.
 	 */
-	if (sizeof(struct lock_class_key) > sizeof(struct lock_class))
-		__error_too_big_MAX_LOCKDEP_SUBCLASSES();
+	BUILD_BUG_ON(sizeof(struct lock_class_key) > sizeof(struct lock_class));
 
 	key = lock->key->subkeys + subclass;
 
@@ -1177,7 +1177,7 @@ look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
  * itself, so actual lookup of the hash should be once per lock object.
  */
 static inline struct lock_class *
-register_lock_class(struct lockdep_map *lock, unsigned int subclass)
+register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
 {
 	struct lockdep_subclass_key *key;
 	struct list_head *hash_head;
@@ -1249,7 +1249,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass)
 out_unlock_set:
 	__raw_spin_unlock(&hash_lock);
 
-	if (!subclass)
+	if (!subclass || force)
 		lock->class_cache = class;
 
 	DEBUG_LOCKS_WARN_ON(class->subclass != subclass);
@@ -1937,7 +1937,7 @@ void trace_softirqs_off(unsigned long ip)
  * Initialize a lock instance's lock-class mapping info:
  */
 void lockdep_init_map(struct lockdep_map *lock, const char *name,
-		      struct lock_class_key *key)
+		      struct lock_class_key *key, int subclass)
 {
 	if (unlikely(!debug_locks))
 		return;
@@ -1957,6 +1957,8 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name,
 	lock->name = name;
 	lock->key = key;
 	lock->class_cache = NULL;
+	if (subclass)
+		register_lock_class(lock, subclass, 1);
 }
 
 EXPORT_SYMBOL_GPL(lockdep_init_map);
@@ -1995,7 +1997,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
 	 * Not cached yet or subclass?
 	 */
 	if (unlikely(!class)) {
-		class = register_lock_class(lock, subclass);
+		class = register_lock_class(lock, subclass, 0);
 		if (!class)
 			return 0;
 	}
diff --git a/kernel/module.c b/kernel/module.c
index 7f60e782de1..f0166563c60 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -87,6 +87,12 @@ static inline int strong_try_module_get(struct module *mod)
 	return try_module_get(mod);
 }
 
+static inline void add_taint_module(struct module *mod, unsigned flag)
+{
+	add_taint(flag);
+	mod->taints |= flag;
+}
+
 /* A thread that wants to hold a reference to a module only while it
  * is running can call ths to safely exit.
  * nfsd and lockd use this.
@@ -847,12 +853,10 @@ static int check_version(Elf_Shdr *sechdrs,
 		return 0;
 	}
 	/* Not in module's version table.  OK, but that taints the kernel. */
-	if (!(tainted & TAINT_FORCED_MODULE)) {
+	if (!(tainted & TAINT_FORCED_MODULE))
 		printk("%s: no version for \"%s\" found: kernel tainted.\n",
 		       mod->name, symname);
-		add_taint(TAINT_FORCED_MODULE);
-		mod->taints |= TAINT_FORCED_MODULE;
-	}
+	add_taint_module(mod, TAINT_FORCED_MODULE);
 	return 1;
 }
 
@@ -910,7 +914,8 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
 	unsigned long ret;
 	const unsigned long *crc;
 
-	ret = __find_symbol(name, &owner, &crc, mod->license_gplok);
+	ret = __find_symbol(name, &owner, &crc,
+			!(mod->taints & TAINT_PROPRIETARY_MODULE));
 	if (ret) {
 		/* use_module can fail due to OOM, or module unloading */
 		if (!check_version(sechdrs, versindex, name, mod, crc) ||
@@ -1335,12 +1340,11 @@ static void set_license(struct module *mod, const char *license)
 	if (!license)
 		license = "unspecified";
 
-	mod->license_gplok = license_is_gpl_compatible(license);
-	if (!mod->license_gplok && !(tainted & TAINT_PROPRIETARY_MODULE)) {
-		printk(KERN_WARNING "%s: module license '%s' taints kernel.\n",
-		       mod->name, license);
-		add_taint(TAINT_PROPRIETARY_MODULE);
-		mod->taints |= TAINT_PROPRIETARY_MODULE;
+	if (!license_is_gpl_compatible(license)) {
+		if (!(tainted & TAINT_PROPRIETARY_MODULE))
+			printk(KERN_WARNING "%s: module license '%s' taints "
+				"kernel.\n", mod->name, license);
+		add_taint_module(mod, TAINT_PROPRIETARY_MODULE);
 	}
 }
 
@@ -1619,8 +1623,7 @@ static struct module *load_module(void __user *umod,
 	modmagic = get_modinfo(sechdrs, infoindex, "vermagic");
 	/* This is allowed: modprobe --force will invalidate it. */
 	if (!modmagic) {
-		add_taint(TAINT_FORCED_MODULE);
-		mod->taints |= TAINT_FORCED_MODULE;
+		add_taint_module(mod, TAINT_FORCED_MODULE);
 		printk(KERN_WARNING "%s: no version magic, tainting kernel.\n",
 		       mod->name);
 	} else if (!same_magic(modmagic, vermagic)) {
@@ -1714,14 +1717,10 @@ static struct module *load_module(void __user *umod,
 	/* Set up license info based on the info section */
 	set_license(mod, get_modinfo(sechdrs, infoindex, "license"));
 
-	if (strcmp(mod->name, "ndiswrapper") == 0) {
-		add_taint(TAINT_PROPRIETARY_MODULE);
-		mod->taints |= TAINT_PROPRIETARY_MODULE;
-	}
-	if (strcmp(mod->name, "driverloader") == 0) {
+	if (strcmp(mod->name, "ndiswrapper") == 0)
 		add_taint(TAINT_PROPRIETARY_MODULE);
-		mod->taints |= TAINT_PROPRIETARY_MODULE;
-	}
+	if (strcmp(mod->name, "driverloader") == 0)
+		add_taint_module(mod, TAINT_PROPRIETARY_MODULE);
 
 	/* Set up MODINFO_ATTR fields */
 	setup_modinfo(mod, sechdrs, infoindex);
@@ -1766,8 +1765,7 @@ static struct module *load_module(void __user *umod,
 	    (mod->num_unused_gpl_syms && !unusedgplcrcindex)) {
 		printk(KERN_WARNING "%s: No versions for exported symbols."
 		       " Tainting kernel.\n", mod->name);
-		add_taint(TAINT_FORCED_MODULE);
-		mod->taints |= TAINT_FORCED_MODULE;
+		add_taint_module(mod, TAINT_FORCED_MODULE);
 	}
 #endif
 
@@ -2132,9 +2130,33 @@ static void m_stop(struct seq_file *m, void *p)
 	mutex_unlock(&module_mutex);
 }
 
+static char *taint_flags(unsigned int taints, char *buf)
+{
+	int bx = 0;
+
+	if (taints) {
+		buf[bx++] = '(';
+		if (taints & TAINT_PROPRIETARY_MODULE)
+			buf[bx++] = 'P';
+		if (taints & TAINT_FORCED_MODULE)
+			buf[bx++] = 'F';
+		/*
+		 * TAINT_FORCED_RMMOD: could be added.
+		 * TAINT_UNSAFE_SMP, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't
+		 * apply to modules.
+		 */
+		buf[bx++] = ')';
+	}
+	buf[bx] = '\0';
+
+	return buf;
+}
+
 static int m_show(struct seq_file *m, void *p)
 {
 	struct module *mod = list_entry(p, struct module, list);
+	char buf[8];
+
 	seq_printf(m, "%s %lu",
 		   mod->name, mod->init_size + mod->core_size);
 	print_unload_info(m, mod);
@@ -2147,6 +2169,10 @@ static int m_show(struct seq_file *m, void *p)
 	/* Used by oprofile and other similar tools. */
 	seq_printf(m, " 0x%p", mod->module_core);
 
+	/* Taints info */
+	if (mod->taints)
+		seq_printf(m, " %s", taint_flags(mod->taints, buf));
+
 	seq_printf(m, "\n");
 	return 0;
 }
@@ -2235,28 +2261,6 @@ struct module *module_text_address(unsigned long addr)
 	return mod;
 }
 
-static char *taint_flags(unsigned int taints, char *buf)
-{
-	*buf = '\0';
-	if (taints) {
-		int bx;
-
-		buf[0] = '(';
-		bx = 1;
-		if (taints & TAINT_PROPRIETARY_MODULE)
-			buf[bx++] = 'P';
-		if (taints & TAINT_FORCED_MODULE)
-			buf[bx++] = 'F';
-		/*
-		 * TAINT_FORCED_RMMOD: could be added.
-		 * TAINT_UNSAFE_SMP, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't
-		 * apply to modules.
-		 */
-		buf[bx] = ')';
-	}
-	return buf;
-}
-
 /* Don't grab lock, we're oopsing. */
 void print_modules(void)
 {
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
index e3203c654dd..18651641a7b 100644
--- a/kernel/mutex-debug.c
+++ b/kernel/mutex-debug.c
@@ -91,7 +91,7 @@ void debug_mutex_init(struct mutex *lock, const char *name,
 	 * Make sure we are not reinitializing a held lock:
 	 */
 	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
-	lockdep_init_map(&lock->dep_map, name, key);
+	lockdep_init_map(&lock->dep_map, name, key, 0);
 #endif
 	lock->owner = NULL;
 	lock->magic = lock;
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index 6ebdb82a0ce..674aceb7335 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -44,11 +44,9 @@ static inline struct nsproxy *clone_namespaces(struct nsproxy *orig)
 {
 	struct nsproxy *ns;
 
-	ns = kmalloc(sizeof(struct nsproxy), GFP_KERNEL);
-	if (ns) {
-		memcpy(ns, orig, sizeof(struct nsproxy));
+	ns = kmemdup(orig, sizeof(struct nsproxy), GFP_KERNEL);
+	if (ns)
 		atomic_set(&ns->count, 1);
-	}
 	return ns;
 }
 
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 479b16b44f7..7c3e1e6dfb5 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -88,6 +88,19 @@ static inline union cpu_time_count cpu_time_sub(const clockid_t which_clock,
 }
 
 /*
+ * Divide and limit the result to res >= 1
+ *
+ * This is necessary to prevent signal delivery starvation, when the result of
+ * the division would be rounded down to 0.
+ */
+static inline cputime_t cputime_div_non_zero(cputime_t time, unsigned long div)
+{
+	cputime_t res = cputime_div(time, div);
+
+	return max_t(cputime_t, res, 1);
+}
+
+/*
  * Update expiry time from increment, and increase overrun count,
  * given the current clock sample.
  */
@@ -483,8 +496,8 @@ static void process_timer_rebalance(struct task_struct *p,
 		BUG();
 		break;
 	case CPUCLOCK_PROF:
-		left = cputime_div(cputime_sub(expires.cpu, val.cpu),
-				   nthreads);
+		left = cputime_div_non_zero(cputime_sub(expires.cpu, val.cpu),
+				       nthreads);
 		do {
 			if (likely(!(t->flags & PF_EXITING))) {
 				ticks = cputime_add(prof_ticks(t), left);
@@ -498,8 +511,8 @@ static void process_timer_rebalance(struct task_struct *p,
 		} while (t != p);
 		break;
 	case CPUCLOCK_VIRT:
-		left = cputime_div(cputime_sub(expires.cpu, val.cpu),
-				   nthreads);
+		left = cputime_div_non_zero(cputime_sub(expires.cpu, val.cpu),
+				       nthreads);
 		do {
 			if (likely(!(t->flags & PF_EXITING))) {
 				ticks = cputime_add(virt_ticks(t), left);
@@ -515,6 +528,7 @@ static void process_timer_rebalance(struct task_struct *p,
 	case CPUCLOCK_SCHED:
 		nsleft = expires.sched - val.sched;
 		do_div(nsleft, nthreads);
+		nsleft = max_t(unsigned long long, nsleft, 1);
 		do {
 			if (likely(!(t->flags & PF_EXITING))) {
 				ns = t->sched_time + nsleft;
@@ -1159,12 +1173,13 @@ static void check_process_timers(struct task_struct *tsk,
 
 		prof_left = cputime_sub(prof_expires, utime);
 		prof_left = cputime_sub(prof_left, stime);
-		prof_left = cputime_div(prof_left, nthreads);
+		prof_left = cputime_div_non_zero(prof_left, nthreads);
 		virt_left = cputime_sub(virt_expires, utime);
-		virt_left = cputime_div(virt_left, nthreads);
+		virt_left = cputime_div_non_zero(virt_left, nthreads);
 		if (sched_expires) {
 			sched_left = sched_expires - sched_time;
 			do_div(sched_left, nthreads);
+			sched_left = max_t(unsigned long long, sched_left, 1);
 		} else {
 			sched_left = 0;
 		}
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index d7223494279..b1fb7866b0b 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -18,6 +18,7 @@
 #include <linux/fs.h>
 #include <linux/mount.h>
 #include <linux/pm.h>
+#include <linux/console.h>
 #include <linux/cpu.h>
 
 #include "power.h"
@@ -70,7 +71,7 @@ static inline void platform_finish(void)
 
 static int prepare_processes(void)