21 files changed, 199 insertions, 232 deletions

diff --git a/kernel/audit.c b/kernel/audit.c
index 76c9a11b72d6..4e9d20829681 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -151,7 +151,7 @@ struct audit_buffer {
 
 static void audit_set_pid(struct audit_buffer *ab, pid_t pid)
 {
-        struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+        struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
         nlh->nlmsg_pid = pid;
 }
 
@@ -750,7 +750,7 @@ static void audit_receive_skb(struct sk_buff *skb)
         u32             rlen;
 
         while (skb->len >= NLMSG_SPACE(0)) {
-                nlh = (struct nlmsghdr *)skb->data;
+                nlh = nlmsg_hdr(skb);
                 if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
                         return;
                 rlen = NLMSG_ALIGN(nlh->nlmsg_len);
@@ -795,7 +795,7 @@ static int __init audit_init(void)
         printk(KERN_INFO "audit: initializing netlink socket (%s)\n",
                audit_default ? "enabled" : "disabled");
         audit_sock = netlink_kernel_create(NETLINK_AUDIT, 0, audit_receive,
-                                           THIS_MODULE);
+                                           NULL, THIS_MODULE);
         if (!audit_sock)
                 audit_panic("cannot initialize netlink socket");
         else
@@ -1073,7 +1073,7 @@ static void audit_log_vformat(struct audit_buffer *ab, const char *fmt,
                         goto out;
         }
         va_copy(args2, args);
-        len = vsnprintf(skb->tail, avail, fmt, args);
+        len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args);
         if (len >= avail) {
                 /* The printk buffer is 1024 bytes long, so if we get
                  * here and AUDIT_BUFSIZ is at least 1024, then we can
@@ -1082,7 +1082,7 @@ static void audit_log_vformat(struct audit_buffer *ab, const char *fmt,
                         max_t(unsigned, AUDIT_BUFSIZ, 1+len-avail));
                 if (!avail)
                         goto out;
-                len = vsnprintf(skb->tail, avail, fmt, args2);
+                len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args2);
         }
         if (len > 0)
                 skb_put(skb, len);
@@ -1143,7 +1143,7 @@ void audit_log_hex(struct audit_buffer *ab, const unsigned char *buf,
                         return;
         }
 
-        ptr = skb->tail;
+        ptr = skb_tail_pointer(skb);
         for (i=0; i<len; i++) {
                 *ptr++ = hex[(buf[i] & 0xF0)>>4]; /* Upper nibble */
                 *ptr++ = hex[buf[i] & 0x0F];      /* Lower nibble */
@@ -1175,7 +1175,7 @@ static void audit_log_n_string(struct audit_buffer *ab, size_t slen,
                 if (!avail)
                         return;
         }
-        ptr = skb->tail;
+        ptr = skb_tail_pointer(skb);
         *ptr++ = '"';
         memcpy(ptr, string, slen);
         ptr += slen;
@@ -1268,7 +1268,7 @@ void audit_log_end(struct audit_buffer *ab)
                 audit_log_lost("rate limit exceeded");
         } else {
                 if (audit_pid) {
-                        struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+                        struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
                         nlh->nlmsg_len = ab->skb->len - NLMSG_SPACE(0);
                         skb_queue_tail(&audit_skb_queue, ab->skb);
                         ab->skb = NULL;
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 3d4206ada5c9..36e70845cfc3 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -254,6 +254,12 @@ int __cpuinit cpu_up(unsigned int cpu)
 }
 
 #ifdef CONFIG_SUSPEND_SMP
+/* Needed to prevent the microcode driver from requesting firmware in its CPU
+ * hotplug notifier during the suspend/resume.
+ */
+int suspend_cpu_hotplug;
+EXPORT_SYMBOL(suspend_cpu_hotplug);
+
 static cpumask_t frozen_cpus;
 
 int disable_nonboot_cpus(void)
@@ -261,16 +267,8 @@ int disable_nonboot_cpus(void)
         int cpu, first_cpu, error = 0;
 
         mutex_lock(&cpu_add_remove_lock);
-        first_cpu = first_cpu(cpu_present_map);
-        if (!cpu_online(first_cpu)) {
-                error = _cpu_up(first_cpu);
-                if (error) {
-                        printk(KERN_ERR "Could not bring CPU%d up.\n",
-                                first_cpu);
-                        goto out;
-                }
-        }
-
+        suspend_cpu_hotplug = 1;
+        first_cpu = first_cpu(cpu_online_map);
         /* We take down all of the non-boot CPUs in one shot to avoid races
          * with the userspace trying to use the CPU hotplug at the same time
          */
@@ -296,7 +294,7 @@ int disable_nonboot_cpus(void)
         } else {
                 printk(KERN_ERR "Non-boot CPUs are not disabled\n");
         }
-out:
+        suspend_cpu_hotplug = 0;
         mutex_unlock(&cpu_add_remove_lock);
         return error;
 }
@@ -308,20 +306,22 @@ void enable_nonboot_cpus(void)
         /* Allow everyone to use the CPU hotplug again */
         mutex_lock(&cpu_add_remove_lock);
         cpu_hotplug_disabled = 0;
-        mutex_unlock(&cpu_add_remove_lock);
         if (cpus_empty(frozen_cpus))
-                return;
+                goto out;
 
+        suspend_cpu_hotplug = 1;
         printk("Enabling non-boot CPUs ...\n");
         for_each_cpu_mask(cpu, frozen_cpus) {
-                error = cpu_up(cpu);
+                error = _cpu_up(cpu);
                 if (!error) {
                         printk("CPU%d is up\n", cpu);
                         continue;
                 }
-                printk(KERN_WARNING "Error taking CPU%d up: %d\n",
-                        cpu, error);
+                printk(KERN_WARNING "Error taking CPU%d up: %d\n", cpu, error);
         }
         cpus_clear(frozen_cpus);
+        suspend_cpu_hotplug = 0;
+out:
+        mutex_unlock(&cpu_add_remove_lock);
 }
 #endif
diff --git a/kernel/exit.c b/kernel/exit.c
index f132349c0325..b55ed4cc9104 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -790,7 +790,7 @@ static void exit_notify(struct task_struct *tsk)
         
         pgrp = task_pgrp(tsk);
         if ((task_pgrp(t) != pgrp) &&
-            (task_session(t) != task_session(tsk)) &&
+            (task_session(t) == task_session(tsk)) &&
             will_become_orphaned_pgrp(pgrp, tsk) &&
             has_stopped_jobs(pgrp)) {
                 __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp);
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 6a7938a0d513..1b3033105b40 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -59,6 +59,7 @@ ktime_t ktime_get(void)
 
         return timespec_to_ktime(now);
 }
+EXPORT_SYMBOL_GPL(ktime_get);
 
 /**
  * ktime_get_real - get the real (wall-) time in ktime_t format
@@ -278,6 +279,8 @@ ktime_t ktime_add_ns(const ktime_t kt, u64 nsec)
 
         return ktime_add(kt, tmp);
 }
+
+EXPORT_SYMBOL_GPL(ktime_add_ns);
 # endif /* !CONFIG_KTIME_SCALAR */
 
 /*
@@ -459,6 +462,18 @@ void clock_was_set(void)
 }
 
 /*
+ * During resume we might have to reprogram the high resolution timer
+ * interrupt (on the local CPU):
+ */
+void hres_timers_resume(void)
+{
+        WARN_ON_ONCE(num_online_cpus() > 1);
+
+        /* Retrigger the CPU local events: */
+        retrigger_next_event(NULL);
+}
+
+/*
  * Check, whether the timer is on the callback pending list
  */
 static inline int hrtimer_cb_pending(const struct hrtimer *timer)
@@ -814,7 +829,12 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode)
 
         timer_stats_hrtimer_set_start_info(timer);
 
-        enqueue_hrtimer(timer, new_base, base == new_base);
+        /*
+         * Only allow reprogramming if the new base is on this CPU.
+         * (it might still be on another CPU if the timer was pending)
+         */
+        enqueue_hrtimer(timer, new_base,
+                        new_base->cpu_base == &__get_cpu_var(hrtimer_bases));
 
         unlock_hrtimer_base(timer, &flags);
 
diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c
index 85a430da0fb6..d8ee241115f5 100644
--- a/kernel/irq/devres.c
+++ b/kernel/irq/devres.c
@@ -54,7 +54,7 @@ int devm_request_irq(struct device *dev, unsigned int irq,
 
         rc = request_irq(irq, handler, irqflags, devname, dev_id);
         if (rc) {
-                kfree(dr);
+                devres_free(dr);
                 return rc;
         }
 
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 6f294ff4f9ee..5a0de8409739 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -267,27 +267,33 @@ const char *kallsyms_lookup(unsigned long addr,
         return NULL;
 }
 
-/* Replace "%s" in format with address, or returns -errno. */
-void __print_symbol(const char *fmt, unsigned long address)
+/* Look up a kernel symbol and return it in a text buffer. */
+int sprint_symbol(char *buffer, unsigned long address)
 {
         char *modname;
         const char *name;
         unsigned long offset, size;
         char namebuf[KSYM_NAME_LEN+1];
-        char buffer[sizeof("%s+%#lx/%#lx [%s]") + KSYM_NAME_LEN +
-                    2*(BITS_PER_LONG*3/10) + MODULE_NAME_LEN + 1];
 
         name = kallsyms_lookup(address, &size, &offset, &modname, namebuf);
-
         if (!name)
-                sprintf(buffer, "0x%lx", address);
+                return sprintf(buffer, "0x%lx", address);
         else {
                 if (modname)
-                        sprintf(buffer, "%s+%#lx/%#lx [%s]", name, offset,
+                        return sprintf(buffer, "%s+%#lx/%#lx [%s]", name, offset,
                                 size, modname);
                 else
-                        sprintf(buffer, "%s+%#lx/%#lx", name, offset, size);
+                        return sprintf(buffer, "%s+%#lx/%#lx", name, offset, size);
         }
+}
+
+/* Look up a kernel symbol and print it to the kernel messages. */
+void __print_symbol(const char *fmt, unsigned long address)
+{
+        char buffer[KSYM_SYMBOL_LEN];
+
+        sprint_symbol(buffer, address);
+
         printk(fmt, buffer);
 }
 
@@ -452,3 +458,4 @@ static int __init kallsyms_init(void)
 __initcall(kallsyms_init);
 
 EXPORT_SYMBOL(__print_symbol);
+EXPORT_SYMBOL_GPL(sprint_symbol);
diff --git a/kernel/module.c b/kernel/module.c
index fbc51de6444e..9da5af668a20 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1148,8 +1148,10 @@ int mod_sysfs_setup(struct module *mod,
                 goto out;
 
         mod->holders_dir = kobject_add_dir(&mod->mkobj.kobj, "holders");
-        if (!mod->holders_dir)
+        if (!mod->holders_dir) {
+                err = -ENOMEM;
                 goto out_unreg;
+        }
 
         err = module_param_sysfs_setup(mod, kparam, num_params);
         if (err)
@@ -2384,8 +2386,13 @@ void module_add_driver(struct module *mod, struct device_driver *drv)
 
                 /* Lookup built-in module entry in /sys/modules */
                 mkobj = kset_find_obj(&module_subsys.kset, drv->mod_name);
-                if (mkobj)
+                if (mkobj) {
                         mk = container_of(mkobj, struct module_kobject, kobj);
+                        /* remember our module structure */
+                        drv->mkobj = mk;
+                        /* kset_find_obj took a reference */
+                        kobject_put(mkobj);
+                }
         }
 
         if (!mk)
@@ -2405,17 +2412,22 @@ EXPORT_SYMBOL(module_add_driver);
 
 void module_remove_driver(struct device_driver *drv)
 {
+        struct module_kobject *mk = NULL;
         char *driver_name;
 
         if (!drv)
                 return;
 
         sysfs_remove_link(&drv->kobj, "module");
-        if (drv->owner && drv->owner->mkobj.drivers_dir) {
+
+        if (drv->owner)
+                mk = &drv->owner->mkobj;
+        else if (drv->mkobj)
+                mk = drv->mkobj;
+        if (mk && mk->drivers_dir) {
                 driver_name = make_driver_name(drv);
                 if (driver_name) {
-                        sysfs_remove_link(drv->owner->mkobj.drivers_dir,
-                                          driver_name);
+                        sysfs_remove_link(mk->drivers_dir, driver_name);
                         kfree(driver_name);
                 }
         }
diff --git a/kernel/params.c b/kernel/params.c
index e265b13195b1..1fc4ac746cd8 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -356,6 +356,10 @@ int param_set_copystring(const char *val, struct kernel_param *kp)
 {
         struct kparam_string *kps = kp->arg;
 
+        if (!val) {
+                printk(KERN_ERR "%s: missing param set value\n", kp->name);
+                return -EINVAL;
+        }
         if (strlen(val)+1 > kps->maxlen) {
                 printk(KERN_ERR "%s: string doesn't fit in %u chars.\n",
                        kp->name, kps->maxlen-1);
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index dee0ff40befd..02e4fb69111a 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -39,7 +39,13 @@ static inline int platform_prepare(void)
 {
         int error = 0;
 
-        if (pm_disk_mode == PM_DISK_PLATFORM) {
+        switch (pm_disk_mode) {
+        case PM_DISK_TEST:
+        case PM_DISK_TESTPROC:
+        case PM_DISK_SHUTDOWN:
+        case PM_DISK_REBOOT:
+                break;
+        default:
                 if (pm_ops && pm_ops->prepare)
                         error = pm_ops->prepare(PM_SUSPEND_DISK);
         }
@@ -48,41 +54,48 @@ static inline int platform_prepare(void)
 
 /**
  *      power_down - Shut machine down for hibernate.
- *      @mode:          Suspend-to-disk mode
  *
- *      Use the platform driver, if configured so, and return gracefully if it
- *      fails.
- *      Otherwise, try to power off and reboot. If they fail, halt the machine,
- *      there ain't no turning back.
+ *      Use the platform driver, if configured so; otherwise try
+ *      to power off or reboot.
  */
 
-static void power_down(suspend_disk_method_t mode)
+static void power_down(void)
 {
-        disable_nonboot_cpus();
-        switch(mode) {
-        case PM_DISK_PLATFORM:
-                if (pm_ops && pm_ops->enter) {
-                        kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
-                        pm_ops->enter(PM_SUSPEND_DISK);
-                        break;
-                }
+        switch (pm_disk_mode) {
+        case PM_DISK_TEST:
+        case PM_DISK_TESTPROC:
+                break;
         case PM_DISK_SHUTDOWN:
                 kernel_power_off();
                 break;
         case PM_DISK_REBOOT:
                 kernel_restart(NULL);
                 break;
+        default:
+                if (pm_ops && pm_ops->enter) {
+                        kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
+                        pm_ops->enter(PM_SUSPEND_DISK);
+                        break;
+                }
         }
         kernel_halt();
-        /* Valid image is on the disk, if we continue we risk serious data corruption
-           after resume. */
+        /*
+         * Valid image is on the disk, if we continue we risk serious data
+         * corruption after resume.
+         */
         printk(KERN_CRIT "Please power me down manually\n");
         while(1);
 }
 
 static inline void platform_finish(void)
 {
-        if (pm_disk_mode == PM_DISK_PLATFORM) {
+        switch (pm_disk_mode) {
+        case PM_DISK_TEST:
+        case PM_DISK_TESTPROC:
+        case PM_DISK_SHUTDOWN:
+        case PM_DISK_REBOOT:
+                break;
+        default:
                 if (pm_ops && pm_ops->finish)
                         pm_ops->finish(PM_SUSPEND_DISK);
         }
@@ -109,8 +122,6 @@ static int prepare_processes(void)
 /**
  *      pm_suspend_disk - The granpappy of hibernation power management.
  *
- *      If we're going through the firmware, then get it over with quickly.
- *
  *      If not, then call swsusp to do its thing, then figure out how
  *      to power down the system.
  */
@@ -167,7 +178,7 @@ int pm_suspend_disk(void)
                 pr_debug("PM: writing image.\n");
                 error = swsusp_write();
                 if (!error)
-                        power_down(pm_disk_mode);
+                        power_down();
                 else {
                         swsusp_free();
                         goto Thaw;
@@ -279,7 +290,6 @@ late_initcall(software_resume);
 
 
 static const char * const pm_disk_modes[] = {
-        [PM_DISK_FIRMWARE]      = "firmware",
         [PM_DISK_PLATFORM]      = "platform",
         [PM_DISK_SHUTDOWN]      = "shutdown",
         [PM_DISK_REBOOT]        = "reboot",
@@ -290,27 +300,25 @@ static const char * const pm_disk_modes[] = {
 /**
  *      disk - Control suspend-to-disk mode
  *
- *      Suspend-to-disk can be handled in several ways. The greatest
- *      distinction is who writes memory to disk - the firmware or the OS.
- *      If the firmware does it, we assume that it also handles suspending
- *      the system.
- *      If the OS does it, then we have three options for putting the system
- *      to sleep - using the platform driver (e.g. ACPI or other PM registers),
- *      powering off the system or rebooting the system (for testing).
+ *      Suspend-to-disk can be handled in several ways. We have a few options
+ *      for putting the system to sleep - using the platform driver (e.g. ACPI
+ *      or other pm_ops), powering off the system or rebooting the system
+ *      (for testing) as well as the two test modes.
  *
- *      The system will support either 'firmware' or 'platform', and that is
- *      known a priori (and encoded in pm_ops). But, the user may choose
- *      'shutdown' or 'reboot' as alternatives.
+ *      The system can support 'platform', and that is known a priori (and
+ *      encoded in pm_ops). However, the user may choose 'shutdown' or 'reboot'
+ *      as alternatives, as well as the test modes 'test' and 'testproc'.
  *
  *      show() will display what the mode is currently set to.
  *      store() will accept one of
  *
- *      'firmware'
  *      'platform'
  *      'shutdown'
  *      'reboot'
+ *      'test'
+ *      'testproc'
  *
- *      It will only change to 'firmware' or 'platform' if the system
+ *      It will only change to 'platform' if the system
  *      supports it (as determined from pm_ops->pm_disk_mode).
  */
 
@@ -332,17 +340,21 @@ static ssize_t disk_store(struct subsystem * s, const char * buf, size_t n)
         len = p ? p - buf : n;
 
         mutex_lock(&pm_mutex);
-        for (i = PM_DISK_FIRMWARE; i < PM_DISK_MAX; i++) {
+        for (i = PM_DISK_PLATFORM; i < PM_DISK_MAX; i++) {
                 if (!strncmp(buf, pm_disk_modes[i], len)) {
                         mode = i;
                         break;
                 }
         }
         if (mode) {
-                if (mode == PM_DISK_SHUTDOWN || mode == PM_DISK_REBOOT ||
-                     mode == PM_DISK_TEST || mode == PM_DISK_TESTPROC) {
+                switch (mode) {
+                case PM_DISK_SHUTDOWN:
+                case PM_DISK_REBOOT:
+                case PM_DISK_TEST:
+                case PM_DISK_TESTPROC:
                         pm_disk_mode = mode;
-                } else {
+                        break;
+                default:
                         if (pm_ops && pm_ops->enter &&
                             (mode == pm_ops->pm_disk_mode))
                                 pm_disk_mode = mode;
diff --git a/kernel/power/main.c b/kernel/power/main.c
index a064dfd8877a..72419a3b1beb 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -30,7 +30,7 @@
 DEFINE_MUTEX(pm_mutex);
 
 struct pm_ops *pm_ops;
-suspend_disk_method_t pm_disk_mode = PM_DISK_PLATFORM;
+suspend_disk_method_t pm_disk_mode = PM_DISK_SHUTDOWN;
 
 /**
  *      pm_set_ops - Set the global power method table. 
@@ -41,9 +41,26 @@ void pm_set_ops(struct pm_ops * ops)
 {
         mutex_lock(&pm_mutex);
         pm_ops = ops;
+        if (ops && ops->pm_disk_mode != PM_DISK_INVALID) {
+                pm_disk_mode = ops->pm_disk_mode;
+        } else
+                pm_disk_mode = PM_DISK_SHUTDOWN;
         mutex_unlock(&pm_mutex);
 }
 
+/**
+ * pm_valid_only_mem - generic memory-only valid callback
+ *
+ * pm_ops drivers that implement mem suspend only and only need
+ * to check for that in their .valid callback can use this instead
+ * of rolling their own .valid callback.
+ */
+int pm_valid_only_mem(suspend_state_t state)
+{
+        return state == PM_SUSPEND_MEM;
+}
+
+
 static inline void pm_finish(suspend_state_t state)
 {
         if (pm_ops->finish)
@@ -111,13 +128,24 @@ static int suspend_prepare(suspend_state_t state)
         return error;
 }
 
+/* default implementation */
+void __attribute__ ((weak)) arch_suspend_disable_irqs(void)
+{
+        local_irq_disable();
+}
+
+/* default implementation */
+void __attribute__ ((weak)) arch_suspend_enable_irqs(void)
+{
+        local_irq_enable();
+}
 
 int suspend_enter(suspend_state_t state)
 {
         int error = 0;
-        unsigned long flags;
 
-        local_irq_save(flags);
+        arch_suspend_disable_irqs();
+        BUG_ON(!irqs_disabled());
 
         if ((error = device_power_down(PMSG_SUSPEND))) {
                 printk(KERN_ERR "Some devices failed to power down\n");
@@ -126,7 +154,8 @@ int suspend_enter(suspend_state_t state)
         error = pm_ops->enter(state);
         device_power_up();
  Done:
-        local_irq_restore(flags);
+        arch_suspend_enable_irqs();
+        BUG_ON(irqs_disabled());
         return error;
 }
 
@@ -169,8 +198,8 @@ static inline int valid_state(suspend_state_t state)
 
         /* all other states need lowlevel support and need to be
          * valid to the lowlevel implementation, no valid callback
-         * implies that all are valid. */
-        if (!pm_ops || (pm_ops->valid && !pm_ops->valid(state)))
+         * implies that none are valid. */
+        if (!pm_ops || !pm_ops->valid || !pm_ops->valid(state))
                 return 0;
         return 1;
 }
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 7fb834397a0d..175370824f37 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -229,13 +229,13 @@ int swsusp_shrink_memory(void)
                 size += highmem_size;
                 for_each_zone (zone)
                         if (populated_zone(zone)) {
+                                tmp += snapshot_additional_pages(zone);
                                 if (is_highmem(zone)) {
                                         highmem_size -=
                                         zone_page_state(zone, NR_FREE_PAGES);
                                 } else {
                                         tmp -= zone_page_state(zone, NR_FREE_PAGES);
                                         tmp += zone->lowmem_reserve[ZONE_NORMAL];
-                                        tmp += snapshot_additional_pages(zone);
                                 }
                         }
 
diff --git a/kernel/power/user.c b/kernel/power/user.c
index bf211fee1222..7cf6713b2325 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -401,10 +401,9 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 
                 case PMOPS_ENTER:
                         if (data->platform_suspend) {
-                                disable_nonboot_cpus();
                                 kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
                                 error = pm_ops->enter(PM_SUSPEND_DISK);
-                                enable_nonboot_cpus();
+                                error = 0;
                         }
                         break;
 
diff --git a/kernel/resource.c b/kernel/resource.c
index bdb55a33f969..9bd14fd3e6de 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -213,27 +213,6 @@ int request_resource(struct resource *root, struct resource *new)
 EXPORT_SYMBOL(request_resource);
 
 /**
- * ____request_resource - reserve a resource, with resource conflict returned
- * @root: root resource descriptor
- * @new: resource descriptor desired by caller
- *
- * Returns:
- * On success, NULL is returned.
- * On error, a pointer to the conflicting resource is returned.
- */
-struct resource *____request_resource(struct resource *root, struct resource *new)
-{
-        struct resource *conflict;
-
-        write_lock(&resource_lock);
-        conflict = __request_resource(root, new);
-        write_unlock(&resource_lock);
-        return conflict;
-}
-
-EXPORT_SYMBOL(____request_resource);
-
-/**
  * release_resource - release a previously reserved resource
  * @old: resource pointer
  */
diff --git a/kernel/sched.c b/kernel/sched.c
index a4ca632c477c..960d7c5fca39 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4687,32 +4687,10 @@ out_unlock:
         return retval;
 }
 
-static inline struct task_struct *eldest_child(struct task_struct *p)
-{
-        if (list_empty(&p->children))
-                return NULL;
-        return list_entry(p->children.next,struct task_struct,sibling);
-}
-
-static inline struct task_struct *older_sibling(struct task_struct *p)
-{
-        if (p->sibling.prev==&p->parent->children)
-                return NULL;
-        return list_entry(p->sibling.prev,struct task_struct,sibling);
-}
-
-static inline struct task_struct *younger_sibling(struct task_struct *p)
-{
-        if (p->sibling.next==&p->parent->children)
-                return NULL;
-        return list_entry(p->sibling.next,struct task_struct,sibling);
-}
-
 static const char stat_nam[] = "RSDTtZX";
 
 static void show_task(struct task_struct *p)
 {
-        struct task_struct *relative;
         unsigned long free = 0;
         unsigned state;
 
@@ -4738,19 +4716,7 @@ static void show_task(struct task_struct *p)
                 free = (unsigned long)n - (unsigned long)end_of_stack(p);
         }
 #endif
-        printk("%5lu %5d %6d ", free, p->pid, p->parent->pid);
-        if ((relative = eldest_child(p)))
-                printk("%5d ", relative->pid);
-        else
-                printk("      ");
-        if ((relative = younger_sibling(p)))
-                printk("%7d", relative->pid);
-        else
-                printk("       ");
-        if ((relative = older_sibling(p)))
-                printk(" %5d", relative->pid);
-        else
-                printk("      ");
+        printk("%5lu %5d %6d", free, p->pid, p->parent->pid);
         if (!p->mm)
                 printk(" (L-TLB)\n");
         else
@@ -4780,7 +4746,7 @@ void show_state_filter(unsigned long state_filter)
                  * console might take alot of time:
                  */
                 touch_nmi_watchdog();
-                if (p->state & state_filter)
+                if (!state_filter || (p->state & state_filter))
                         show_task(p);
         } while_each_thread(g, p);
 
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 1b255df4fcd0..c904748f2290 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1676,7 +1676,7 @@ static int proc_dointvec_taint(ctl_table *table, int write, struct file *filp,
 {
         int op;
 
-        if (!capable(CAP_SYS_ADMIN))
+        if (write && !capable(CAP_SYS_ADMIN))
                 return -EPERM;
 
         op = OP_OR;
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 4c3476fa058d..ad7d2392cb0e 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -102,7 +102,7 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
  */
 static int send_reply(struct sk_buff *skb, pid_t pid)
 {
-        struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+        struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
         void *reply = genlmsg_data(genlhdr);
         int rc;
 
@@ -121,7 +121,7 @@ static int send_reply(struct sk_buff *skb, pid_t pid)
 static void send_cpu_listeners(struct sk_buff *skb,
                                         struct listener_list *listeners)
 {
-        struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+        struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
         struct listener *s, *tmp;
         struct sk_buff *skb_next, *skb_cur = skb;
         void *reply = genlmsg_data(genlhdr);
diff --git a/kernel/time.c b/kernel/time.c
index c6c80ea5d0ea..ba18ec4899bd 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -452,6 +452,7 @@ struct timespec ns_to_timespec(const s64 nsec)
 
         return ts;
 }
+EXPORT_SYMBOL(ns_to_timespec);
 
 /**
  * ns_to_timeval - Convert nanoseconds to timeval
@@ -469,6 +470,7 @@ struct timeval ns_to_timeval(const s64 nsec)
 
         return tv;
 }
+EXPORT_SYMBOL(ns_to_timeval);
 
 /*
  * Convert jiffies to milliseconds and back.
@@ -635,6 +637,7 @@ timeval_to_jiffies(const struct timeval *value)
                 (((u64)usec * USEC_CONVERSION + USEC_ROUND) >>
                  (USEC_JIFFIE_SC - SEC_JIFFIE_SC))) >> SEC_JIFFIE_SC;
 }
+EXPORT_SYMBOL(timeval_to_jiffies);
 
 void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value)
 {
@@ -649,6 +652,7 @@ void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value)
         tv_usec /= NSEC_PER_USEC;
         value->tv_usec = tv_usec;
 }
+EXPORT_SYMBOL(jiffies_to_timeval);
 
 /*
  * Convert jiffies/jiffies_64 to clock_t and back.
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 67932ea78c17..76212b2a99de 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -274,72 +274,3 @@ void clockevents_notify(unsigned long reason, void *arg)
 }
 EXPORT_SYMBOL_GPL(clockevents_notify);
 
-#ifdef CONFIG_SYSFS
-
-/**
- * clockevents_show_registered - sysfs interface for listing clockevents
- * @dev:        unused
- * @buf:        char buffer to be filled with clock events list
- *
- * Provides sysfs interface for listing registered clock event devices
- */
-static ssize_t clockevents_show_registered(struct sys_device *dev, char *buf)
-{
-        struct list_head *tmp;
-        char *p = buf;
-        int cpu;
-
-        spin_lock(&clockevents_lock);
-
-        list_for_each(tmp, &clockevent_devices) {
-                struct clock_event_device *ce;
-
-                ce = list_entry(tmp, struct clock_event_device, list);
-                p += sprintf(p, "%-20s F:%04x M:%d", ce->name,
-                             ce->features, ce->mode);
-                p += sprintf(p, " C:");
-                if (!cpus_equal(ce->cpumask, cpu_possible_map)) {
-                        for_each_cpu_mask(cpu, ce->cpumask)
-                                p += sprintf(p, " %d", cpu);
-                } else {
-                        /*
-                         * FIXME: Add the cpu which is handling this sucker
-                         */
-                }
-                p += sprintf(p, "\n");
-        }
-
-        spin_unlock(&clockevents_lock);
-
-        return p - buf;
-}
-
-/*
- * Sysfs setup bits:
- */
-static SYSDEV_ATTR(registered, 0600,
-                   clockevents_show_registered, NULL);
-
-static struct sysdev_class clockevents_sysclass = {
-        set_kset_name("clockevents"),
-};
-
-static struct sys_device clockevents_sys_device = {
-        .id     = 0,
-        .cls    = &clockevents_sysclass,
-};
-
-static int __init clockevents_sysfs_init(void)
-{
-        int error = sysdev_class_register(&clockevents_sysclass);
-
-        if (!error)
-                error = sysdev_register(&clockevents_sys_device);
-        if (!error)
-                error = sysdev_create_file(
-                                &clockevents_sys_device,
-                                &attr_registered);
-        return error;
-}
-device_initcall(clockevents_sysfs_init);
-#endif
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index 3be8da8fed7e..4c256fdb8875 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -69,4 +69,4 @@ static int __init init_jiffies_clocksource(void)
         return clocksource_register(&clocksource_jiffies);
 }
 
-module_init(init_jiffies_clocksource);
+core_initcall(init_jiffies_clocksource);
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index eb12509e00bd..cb25649c6f50 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -32,7 +32,7 @@ static u64 tick_length, tick_length_base;
 /* TIME_ERROR prevents overwriting the CMOS clock */
 static int time_state = TIME_OK;        /* clock synchronization status */
 int time_status = STA_UNSYNC;           /* clock status bits            */
-static long time_offset;                /* time adjustment (ns)         */
+static s64 time_offset;         /* time adjustment (ns)         */
 static long time_constant = 2;          /* pll time constant            */
 long time_maxerror = NTP_PHASE_LIMIT;   /* maximum error (us)           */
 long time_esterror = NTP_PHASE_LIMIT;   /* estimated error (us)         */
@@ -196,7 +196,7 @@ void __attribute__ ((weak)) notify_arch_cmos_timer(void)
  */
 int do_adjtimex(struct timex *txc)
 {
-        long ltemp, mtemp, save_adjust;
+        long mtemp, save_adjust, rem;
         s64 freq_adj, temp64;
         int result;
 
@@ -277,14 +277,14 @@ int do_adjtimex(struct timex *txc)
                     time_adjust = txc->offset;
                 }
                 else if (time_status & STA_PLL) {
-                    ltemp = txc->offset * NSEC_PER_USEC;
+                    time_offset = txc->offset * NSEC_PER_USEC;
 
                     /*
                      * Scale the phase adjustment and
                      * clamp to the operating range.
                      */
-                    time_offset = min(ltemp, MAXPHASE * NSEC_PER_USEC);
-                    time_offset = max(time_offset, -MAXPHASE * NSEC_PER_USEC);
+                    time_offset = min(time_offset, (s64)MAXPHASE * NSEC_PER_USEC);
+                    time_offset = max(time_offset, (s64)-MAXPHASE * NSEC_PER_USEC);
 
                     /*
                      * Select whether the frequency is to be controlled
@@ -297,11 +297,11 @@ int do_adjtimex(struct timex *txc)
                     mtemp = xtime.tv_sec - time_reftime;
                     time_reftime = xtime.tv_sec;
 
-                    freq_adj = (s64)time_offset * mtemp;
+                    freq_adj = time_offset * mtemp;
                     freq_adj = shift_right(freq_adj, time_constant * 2 +
                                            (SHIFT_PLL + 2) * 2 - SHIFT_NSEC);
                     if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) {
-                        temp64 = (s64)time_offset << (SHIFT_NSEC - SHIFT_FLL);
+                        temp64 = time_offset << (SHIFT_NSEC - SHIFT_FLL);
                         if (time_offset < 0) {
                             temp64 = -temp64;
                             do_div(temp64, mtemp);
@@ -314,8 +314,10 @@ int do_adjtimex(struct timex *txc)
                     freq_adj += time_freq;
                     freq_adj = min(freq_adj, (s64)MAXFREQ_NSEC);
                     time_freq = max(freq_adj, (s64)-MAXFREQ_NSEC);
-                    time_offset = (time_offset / NTP_INTERVAL_FREQ)
-                                        << SHIFT_UPDATE;
+                    time_offset = div_long_long_rem_signed(time_offset,
+                                                           NTP_INTERVAL_FREQ,
+                                                           &rem);
+                    time_offset <<= SHIFT_UPDATE;
                 } /* STA_PLL */
             } /* txc->modes & ADJ_OFFSET */
             if (txc->modes & ADJ_TICK)
@@ -328,12 +330,12 @@ leave:	if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0)
                 result = TIME_ERROR;
 
         if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT)
-            txc->offset    = save_adjust;
+                txc->offset = save_adjust;
         else
-            txc->offset    = shift_right(time_offset, SHIFT_UPDATE)
-                                * NTP_INTERVAL_FREQ / 1000;
-        txc->freq          = (time_freq / NSEC_PER_USEC)
-                                << (SHIFT_USEC - SHIFT_NSEC);
+                txc->offset = ((long)shift_right(time_offset, SHIFT_UPDATE)) *
+                                NTP_INTERVAL_FREQ / 1000;
+        txc->freq          = (time_freq / NSEC_PER_USEC) <<
+                                (SHIFT_USEC - SHIFT_NSEC);
         txc->maxerror      = time_maxerror;
         txc->esterror      = time_esterror;
         txc->status        = time_status;
diff --git a/kernel/timer.c b/kernel/timer.c
index 440048acaea1..b22bd39740dd 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -505,6 +505,8 @@ out:
         return ret;
 }
 
+EXPORT_SYMBOL(try_to_del_timer_sync);
+
 /**
  * del_timer_sync - deactivate a timer and wait for the handler to finish.
  * @timer: the timer to be deactivated
@@ -1016,7 +1018,7 @@ static int timekeeping_resume(struct sys_device *dev)
         clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL);
 
         /* Resume hrtimers */
-        clock_was_set();
+        hres_timers_resume();
 
         return 0;
 }