diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/auditsc.c | 24 | ||||
| -rw-r--r-- | kernel/cpu.c | 32 | ||||
| -rw-r--r-- | kernel/exit.c | 2 | ||||
| -rw-r--r-- | kernel/fork.c | 2 | ||||
| -rw-r--r-- | kernel/futex.c | 2 | ||||
| -rw-r--r-- | kernel/hrtimer.c | 30 | ||||
| -rw-r--r-- | kernel/irq/devres.c | 2 | ||||
| -rw-r--r-- | kernel/lockdep.c | 8 | ||||
| -rw-r--r-- | kernel/module.c | 24 | ||||
| -rw-r--r-- | kernel/params.c | 4 | ||||
| -rw-r--r-- | kernel/power/console.c | 10 | ||||
| -rw-r--r-- | kernel/power/disk.c | 7 | ||||
| -rw-r--r-- | kernel/power/swsusp.c | 2 | ||||
| -rw-r--r-- | kernel/power/user.c | 9 | ||||
| -rw-r--r-- | kernel/sched.c | 36 | ||||
| -rw-r--r-- | kernel/sysctl.c | 5 | ||||
| -rw-r--r-- | kernel/time.c | 2 | ||||
| -rw-r--r-- | kernel/time/clockevents.c | 69 | ||||
| -rw-r--r-- | kernel/time/clocksource.c | 3 | ||||
| -rw-r--r-- | kernel/time/jiffies.c | 2 | ||||
| -rw-r--r-- | kernel/time/ntp.c | 30 | ||||
| -rw-r--r-- | kernel/time/tick-broadcast.c | 27 | ||||
| -rw-r--r-- | kernel/time/tick-common.c | 13 | ||||
| -rw-r--r-- | kernel/time/tick-internal.h | 11 | ||||
| -rw-r--r-- | kernel/time/tick-oneshot.c | 12 | ||||
| -rw-r--r-- | kernel/time/timer_list.c | 6 | ||||
| -rw-r--r-- | kernel/timer.c | 21 |
27 files changed, 197 insertions, 198 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 359955800dd2..628c7ac590a0 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c | |||
| @@ -739,28 +739,26 @@ static inline void audit_free_context(struct audit_context *context) | |||
| 739 | void audit_log_task_context(struct audit_buffer *ab) | 739 | void audit_log_task_context(struct audit_buffer *ab) |
| 740 | { | 740 | { |
| 741 | char *ctx = NULL; | 741 | char *ctx = NULL; |
| 742 | ssize_t len = 0; | 742 | unsigned len; |
| 743 | int error; | ||
| 744 | u32 sid; | ||
| 745 | |||
| 746 | selinux_get_task_sid(current, &sid); | ||
| 747 | if (!sid) | ||
| 748 | return; | ||
| 743 | 749 | ||
| 744 | len = security_getprocattr(current, "current", NULL, 0); | 750 | error = selinux_sid_to_string(sid, &ctx, &len); |
| 745 | if (len < 0) { | 751 | if (error) { |
| 746 | if (len != -EINVAL) | 752 | if (error != -EINVAL) |
| 747 | goto error_path; | 753 | goto error_path; |
| 748 | return; | 754 | return; |
| 749 | } | 755 | } |
| 750 | 756 | ||
| 751 | ctx = kmalloc(len, GFP_KERNEL); | ||
| 752 | if (!ctx) | ||
| 753 | goto error_path; | ||
| 754 | |||
| 755 | len = security_getprocattr(current, "current", ctx, len); | ||
| 756 | if (len < 0 ) | ||
| 757 | goto error_path; | ||
| 758 | |||
| 759 | audit_log_format(ab, " subj=%s", ctx); | 757 | audit_log_format(ab, " subj=%s", ctx); |
| 758 | kfree(ctx); | ||
| 760 | return; | 759 | return; |
| 761 | 760 | ||
| 762 | error_path: | 761 | error_path: |
| 763 | kfree(ctx); | ||
| 764 | audit_panic("error in audit_log_task_context"); | 762 | audit_panic("error in audit_log_task_context"); |
| 765 | return; | 763 | return; |
| 766 | } | 764 | } |
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) | |||
| 254 | } | 254 | } |
| 255 | 255 | ||
| 256 | #ifdef CONFIG_SUSPEND_SMP | 256 | #ifdef CONFIG_SUSPEND_SMP |
| 257 | /* Needed to prevent the microcode driver from requesting firmware in its CPU | ||
| 258 | * hotplug notifier during the suspend/resume. | ||
| 259 | */ | ||
| 260 | int suspend_cpu_hotplug; | ||
| 261 | EXPORT_SYMBOL(suspend_cpu_hotplug); | ||
| 262 | |||
| 257 | static cpumask_t frozen_cpus; | 263 | static cpumask_t frozen_cpus; |
| 258 | 264 | ||
| 259 | int disable_nonboot_cpus(void) | 265 | int disable_nonboot_cpus(void) |
| @@ -261,16 +267,8 @@ int disable_nonboot_cpus(void) | |||
| 261 | int cpu, first_cpu, error = 0; | 267 | int cpu, first_cpu, error = 0; |
| 262 | 268 | ||
| 263 | mutex_lock(&cpu_add_remove_lock); | 269 | mutex_lock(&cpu_add_remove_lock); |
| 264 | first_cpu = first_cpu(cpu_present_map); | 270 | suspend_cpu_hotplug = 1; |
| 265 | if (!cpu_online(first_cpu)) { | 271 | first_cpu = first_cpu(cpu_online_map); |
| 266 | error = _cpu_up(first_cpu); | ||
| 267 | if (error) { | ||
| 268 | printk(KERN_ERR "Could not bring CPU%d up.\n", | ||
| 269 | first_cpu); | ||
| 270 | goto out; | ||
| 271 | } | ||
| 272 | } | ||
| 273 | |||
| 274 | /* We take down all of the non-boot CPUs in one shot to avoid races | 272 | /* We take down all of the non-boot CPUs in one shot to avoid races |
| 275 | * with the userspace trying to use the CPU hotplug at the same time | 273 | * with the userspace trying to use the CPU hotplug at the same time |
| 276 | */ | 274 | */ |
| @@ -296,7 +294,7 @@ int disable_nonboot_cpus(void) | |||
| 296 | } else { | 294 | } else { |
| 297 | printk(KERN_ERR "Non-boot CPUs are not disabled\n"); | 295 | printk(KERN_ERR "Non-boot CPUs are not disabled\n"); |
| 298 | } | 296 | } |
| 299 | out: | 297 | suspend_cpu_hotplug = 0; |
| 300 | mutex_unlock(&cpu_add_remove_lock); | 298 | mutex_unlock(&cpu_add_remove_lock); |
| 301 | return error; | 299 | return error; |
| 302 | } | 300 | } |
| @@ -308,20 +306,22 @@ void enable_nonboot_cpus(void) | |||
| 308 | /* Allow everyone to use the CPU hotplug again */ | 306 | /* Allow everyone to use the CPU hotplug again */ |
| 309 | mutex_lock(&cpu_add_remove_lock); | 307 | mutex_lock(&cpu_add_remove_lock); |
| 310 | cpu_hotplug_disabled = 0; | 308 | cpu_hotplug_disabled = 0; |
| 311 | mutex_unlock(&cpu_add_remove_lock); | ||
| 312 | if (cpus_empty(frozen_cpus)) | 309 | if (cpus_empty(frozen_cpus)) |
| 313 | return; | 310 | goto out; |
| 314 | 311 | ||
| 312 | suspend_cpu_hotplug = 1; | ||
| 315 | printk("Enabling non-boot CPUs ...\n"); | 313 | printk("Enabling non-boot CPUs ...\n"); |
| 316 | for_each_cpu_mask(cpu, frozen_cpus) { | 314 | for_each_cpu_mask(cpu, frozen_cpus) { |
| 317 | error = cpu_up(cpu); | 315 | error = _cpu_up(cpu); |
| 318 | if (!error) { | 316 | if (!error) { |
| 319 | printk("CPU%d is up\n", cpu); | 317 | printk("CPU%d is up\n", cpu); |
| 320 | continue; | 318 | continue; |
| 321 | } | 319 | } |
| 322 | printk(KERN_WARNING "Error taking CPU%d up: %d\n", | 320 | printk(KERN_WARNING "Error taking CPU%d up: %d\n", cpu, error); |
| 323 | cpu, error); | ||
| 324 | } | 321 | } |
| 325 | cpus_clear(frozen_cpus); | 322 | cpus_clear(frozen_cpus); |
| 323 | suspend_cpu_hotplug = 0; | ||
| 324 | out: | ||
| 325 | mutex_unlock(&cpu_add_remove_lock); | ||
| 326 | } | 326 | } |
| 327 | #endif | 327 | #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) | |||
| 790 | 790 | ||
| 791 | pgrp = task_pgrp(tsk); | 791 | pgrp = task_pgrp(tsk); |
| 792 | if ((task_pgrp(t) != pgrp) && | 792 | if ((task_pgrp(t) != pgrp) && |
| 793 | (task_session(t) != task_session(tsk)) && | 793 | (task_session(t) == task_session(tsk)) && |
| 794 | will_become_orphaned_pgrp(pgrp, tsk) && | 794 | will_become_orphaned_pgrp(pgrp, tsk) && |
| 795 | has_stopped_jobs(pgrp)) { | 795 | has_stopped_jobs(pgrp)) { |
| 796 | __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp); | 796 | __kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp); |
diff --git a/kernel/fork.c b/kernel/fork.c index d154cc786489..6af959c034d8 100644 --- a/kernel/fork.c +++ b/kernel/fork.c | |||
| @@ -933,8 +933,8 @@ asmlinkage long sys_set_tid_address(int __user *tidptr) | |||
| 933 | 933 | ||
| 934 | static inline void rt_mutex_init_task(struct task_struct *p) | 934 | static inline void rt_mutex_init_task(struct task_struct *p) |
| 935 | { | 935 | { |
| 936 | #ifdef CONFIG_RT_MUTEXES | ||
| 937 | spin_lock_init(&p->pi_lock); | 936 | spin_lock_init(&p->pi_lock); |
| 937 | #ifdef CONFIG_RT_MUTEXES | ||
| 938 | plist_head_init(&p->pi_waiters, &p->pi_lock); | 938 | plist_head_init(&p->pi_waiters, &p->pi_lock); |
| 939 | p->pi_blocked_on = NULL; | 939 | p->pi_blocked_on = NULL; |
| 940 | #endif | 940 | #endif |
diff --git a/kernel/futex.c b/kernel/futex.c index e749e7df14b1..5a270b5e3f95 100644 --- a/kernel/futex.c +++ b/kernel/futex.c | |||
| @@ -565,6 +565,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this) | |||
| 565 | if (!pi_state) | 565 | if (!pi_state) |
| 566 | return -EINVAL; | 566 | return -EINVAL; |
| 567 | 567 | ||
| 568 | spin_lock(&pi_state->pi_mutex.wait_lock); | ||
| 568 | new_owner = rt_mutex_next_owner(&pi_state->pi_mutex); | 569 | new_owner = rt_mutex_next_owner(&pi_state->pi_mutex); |
| 569 | 570 | ||
| 570 | /* | 571 | /* |
| @@ -604,6 +605,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this) | |||
| 604 | pi_state->owner = new_owner; | 605 | pi_state->owner = new_owner; |
| 605 | spin_unlock_irq(&new_owner->pi_lock); | 606 | spin_unlock_irq(&new_owner->pi_lock); |
| 606 | 607 | ||
| 608 | spin_unlock(&pi_state->pi_mutex.wait_lock); | ||
| 607 | rt_mutex_unlock(&pi_state->pi_mutex); | 609 | rt_mutex_unlock(&pi_state->pi_mutex); |
| 608 | 610 | ||
| 609 | return 0; | 611 | return 0; |
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index ec4cb9f3e3b7..b74860aaf5f1 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c | |||
| @@ -135,7 +135,7 @@ EXPORT_SYMBOL_GPL(ktime_get_ts); | |||
| 135 | static void hrtimer_get_softirq_time(struct hrtimer_cpu_base *base) | 135 | static void hrtimer_get_softirq_time(struct hrtimer_cpu_base *base) |
| 136 | { | 136 | { |
| 137 | ktime_t xtim, tomono; | 137 | ktime_t xtim, tomono; |
| 138 | struct timespec xts; | 138 | struct timespec xts, tom; |
| 139 | unsigned long seq; | 139 | unsigned long seq; |
| 140 | 140 | ||
| 141 | do { | 141 | do { |
| @@ -145,10 +145,11 @@ static void hrtimer_get_softirq_time(struct hrtimer_cpu_base *base) | |||
| 145 | #else | 145 | #else |
| 146 | xts = xtime; | 146 | xts = xtime; |
| 147 | #endif | 147 | #endif |
| 148 | tom = wall_to_monotonic; | ||
| 148 | } while (read_seqretry(&xtime_lock, seq)); | 149 | } while (read_seqretry(&xtime_lock, seq)); |
| 149 | 150 | ||
| 150 | xtim = timespec_to_ktime(xts); | 151 | xtim = timespec_to_ktime(xts); |
| 151 | tomono = timespec_to_ktime(wall_to_monotonic); | 152 | tomono = timespec_to_ktime(tom); |
| 152 | base->clock_base[CLOCK_REALTIME].softirq_time = xtim; | 153 | base->clock_base[CLOCK_REALTIME].softirq_time = xtim; |
| 153 | base->clock_base[CLOCK_MONOTONIC].softirq_time = | 154 | base->clock_base[CLOCK_MONOTONIC].softirq_time = |
| 154 | ktime_add(xtim, tomono); | 155 | ktime_add(xtim, tomono); |
| @@ -458,6 +459,18 @@ void clock_was_set(void) | |||
| 458 | } | 459 | } |
| 459 | 460 | ||
| 460 | /* | 461 | /* |
| 462 | * During resume we might have to reprogram the high resolution timer | ||
| 463 | * interrupt (on the local CPU): | ||
| 464 | */ | ||
| 465 | void hres_timers_resume(void) | ||
| 466 | { | ||
| 467 | WARN_ON_ONCE(num_online_cpus() > 1); | ||
| 468 | |||
| 469 | /* Retrigger the CPU local events: */ | ||
| 470 | retrigger_next_event(NULL); | ||
| 471 | } | ||
| 472 | |||
| 473 | /* | ||
| 461 | * Check, whether the timer is on the callback pending list | 474 | * Check, whether the timer is on the callback pending list |
| 462 | */ | 475 | */ |
| 463 | static inline int hrtimer_cb_pending(const struct hrtimer *timer) | 476 | static inline int hrtimer_cb_pending(const struct hrtimer *timer) |
| @@ -644,6 +657,12 @@ hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval) | |||
| 644 | orun++; | 657 | orun++; |
| 645 | } | 658 | } |
| 646 | timer->expires = ktime_add(timer->expires, interval); | 659 | timer->expires = ktime_add(timer->expires, interval); |
| 660 | /* | ||
| 661 | * Make sure, that the result did not wrap with a very large | ||
| 662 | * interval. | ||
| 663 | */ | ||
| 664 | if (timer->expires.tv64 < 0) | ||
| 665 | timer->expires = ktime_set(KTIME_SEC_MAX, 0); | ||
| 647 | 666 | ||
| 648 | return orun; | 667 | return orun; |
| 649 | } | 668 | } |
| @@ -807,7 +826,12 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode) | |||
| 807 | 826 | ||
| 808 | timer_stats_hrtimer_set_start_info(timer); | 827 | timer_stats_hrtimer_set_start_info(timer); |
| 809 | 828 | ||
| 810 | enqueue_hrtimer(timer, new_base, base == new_base); | 829 | /* |
| 830 | * Only allow reprogramming if the new base is on this CPU. | ||
| 831 | * (it might still be on another CPU if the timer was pending) | ||
| 832 | */ | ||
| 833 | enqueue_hrtimer(timer, new_base, | ||
| 834 | new_base->cpu_base == &__get_cpu_var(hrtimer_bases)); | ||
| 811 | 835 | ||
| 812 | unlock_hrtimer_base(timer, &flags); | 836 | unlock_hrtimer_base(timer, &flags); |
| 813 | 837 | ||
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, | |||
| 54 | 54 | ||
| 55 | rc = request_irq(irq, handler, irqflags, devname, dev_id); | 55 | rc = request_irq(irq, handler, irqflags, devname, dev_id); |
| 56 | if (rc) { | 56 | if (rc) { |
| 57 | kfree(dr); | 57 | devres_free(dr); |
| 58 | return rc; | 58 | return rc; |
| 59 | } | 59 | } |
| 60 | 60 | ||
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 8dc24c92dc6d..7065a687ac54 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c | |||
| @@ -2742,6 +2742,10 @@ void debug_show_all_locks(void) | |||
| 2742 | int count = 10; | 2742 | int count = 10; |
| 2743 | int unlock = 1; | 2743 | int unlock = 1; |
| 2744 | 2744 | ||
| 2745 | if (unlikely(!debug_locks)) { | ||
| 2746 | printk("INFO: lockdep is turned off.\n"); | ||
| 2747 | return; | ||
| 2748 | } | ||
| 2745 | printk("\nShowing all locks held in the system:\n"); | 2749 | printk("\nShowing all locks held in the system:\n"); |
| 2746 | 2750 | ||
| 2747 | /* | 2751 | /* |
| @@ -2785,6 +2789,10 @@ EXPORT_SYMBOL_GPL(debug_show_all_locks); | |||
| 2785 | 2789 | ||
| 2786 | void debug_show_held_locks(struct task_struct *task) | 2790 | void debug_show_held_locks(struct task_struct *task) |
| 2787 | { | 2791 | { |
| 2792 | if (unlikely(!debug_locks)) { | ||
| 2793 | printk("INFO: lockdep is turned off.\n"); | ||
| 2794 | return; | ||
| 2795 | } | ||
| 2788 | lockdep_print_held_locks(task); | 2796 | lockdep_print_held_locks(task); |
| 2789 | } | 2797 | } |
| 2790 | 2798 | ||
diff --git a/kernel/module.c b/kernel/module.c index f77e893e4620..dcdb32b8b13c 100644 --- a/kernel/module.c +++ b/kernel/module.c | |||
| @@ -2384,8 +2384,13 @@ void module_add_driver(struct module *mod, struct device_driver *drv) | |||
| 2384 | 2384 | ||
| 2385 | /* Lookup built-in module entry in /sys/modules */ | 2385 | /* Lookup built-in module entry in /sys/modules */ |
| 2386 | mkobj = kset_find_obj(&module_subsys.kset, drv->mod_name); | 2386 | mkobj = kset_find_obj(&module_subsys.kset, drv->mod_name); |
| 2387 | if (mkobj) | 2387 | if (mkobj) { |
| 2388 | mk = container_of(mkobj, struct module_kobject, kobj); | 2388 | mk = container_of(mkobj, struct module_kobject, kobj); |
| 2389 | /* remember our module structure */ | ||
| 2390 | drv->mkobj = mk; | ||
| 2391 | /* kset_find_obj took a reference */ | ||
| 2392 | kobject_put(mkobj); | ||
| 2393 | } | ||
| 2389 | } | 2394 | } |
| 2390 | 2395 | ||
| 2391 | if (!mk) | 2396 | if (!mk) |
| @@ -2405,26 +2410,25 @@ EXPORT_SYMBOL(module_add_driver); | |||
| 2405 | 2410 | ||
| 2406 | void module_remove_driver(struct device_driver *drv) | 2411 | void module_remove_driver(struct device_driver *drv) |
| 2407 | { | 2412 | { |
| 2413 | struct module_kobject *mk = NULL; | ||
| 2408 | char *driver_name; | 2414 | char *driver_name; |
| 2409 | 2415 | ||
| 2410 | if (!drv) | 2416 | if (!drv) |
| 2411 | return; | 2417 | return; |
| 2412 | 2418 | ||
| 2413 | sysfs_remove_link(&drv->kobj, "module"); | 2419 | sysfs_remove_link(&drv->kobj, "module"); |
| 2414 | if (drv->owner && drv->owner->mkobj.drivers_dir) { | 2420 | |
| 2421 | if (drv->owner) | ||
| 2422 | mk = &drv->owner->mkobj; | ||
| 2423 | else if (drv->mkobj) | ||
| 2424 | mk = drv->mkobj; | ||
| 2425 | if (mk && mk->drivers_dir) { | ||
| 2415 | driver_name = make_driver_name(drv); | 2426 | driver_name = make_driver_name(drv); |
| 2416 | if (driver_name) { | 2427 | if (driver_name) { |
| 2417 | sysfs_remove_link(drv->owner->mkobj.drivers_dir, | 2428 | sysfs_remove_link(mk->drivers_dir, driver_name); |
| 2418 | driver_name); | ||
| 2419 | kfree(driver_name); | 2429 | kfree(driver_name); |
| 2420 | } | 2430 | } |
| 2421 | } | 2431 | } |
| 2422 | /* | ||
| 2423 | * Undo the additional reference we added in module_add_driver() | ||
| 2424 | * via kset_find_obj() | ||
| 2425 | */ | ||
| 2426 | if (drv->mod_name) | ||
| 2427 | kobject_put(&drv->kobj); | ||
| 2428 | } | 2432 | } |
| 2429 | EXPORT_SYMBOL(module_remove_driver); | 2433 | EXPORT_SYMBOL(module_remove_driver); |
| 2430 | #endif | 2434 | #endif |
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) | |||
| 356 | { | 356 | { |
| 357 | struct kparam_string *kps = kp->arg; | 357 | struct kparam_string *kps = kp->arg; |
| 358 | 358 | ||
| 359 | if (!val) { | ||
| 360 | printk(KERN_ERR "%s: missing param set value\n", kp->name); | ||
| 361 | return -EINVAL; | ||
| 362 | } | ||
| 359 | if (strlen(val)+1 > kps->maxlen) { | 363 | if (strlen(val)+1 > kps->maxlen) { |
| 360 | printk(KERN_ERR "%s: string doesn't fit in %u chars.\n", | 364 | printk(KERN_ERR "%s: string doesn't fit in %u chars.\n", |
| 361 | kp->name, kps->maxlen-1); | 365 | kp->name, kps->maxlen-1); |
diff --git a/kernel/power/console.c b/kernel/power/console.c index 623786d44159..89bcf4973ee5 100644 --- a/kernel/power/console.c +++ b/kernel/power/console.c | |||
| @@ -27,7 +27,15 @@ int pm_prepare_console(void) | |||
| 27 | return 1; | 27 | return 1; |
| 28 | } | 28 | } |
| 29 | 29 | ||
| 30 | set_console(SUSPEND_CONSOLE); | 30 | if (set_console(SUSPEND_CONSOLE)) { |
| 31 | /* | ||
| 32 | * We're unable to switch to the SUSPEND_CONSOLE. | ||
| 33 | * Let the calling function know so it can decide | ||
| 34 | * what to do. | ||
| 35 | */ | ||
| 36 | release_console_sem(); | ||
| 37 | return 1; | ||
| 38 | } | ||
| 31 | release_console_sem(); | 39 | release_console_sem(); |
| 32 | 40 | ||
| 33 | if (vt_waitactive(SUSPEND_CONSOLE)) { | 41 | if (vt_waitactive(SUSPEND_CONSOLE)) { |
diff --git a/kernel/power/disk.c b/kernel/power/disk.c index 406b20adb27a..aec19b063e3f 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c | |||
| @@ -240,12 +240,6 @@ static int software_resume(void) | |||
| 240 | goto Done; | 240 | goto Done; |
| 241 | } | 241 | } |
| 242 | 242 | ||
| 243 | error = platform_prepare(); | ||
| 244 | if (error) { | ||
| 245 | swsusp_free(); | ||
| 246 | goto Thaw; | ||
| 247 | } | ||
| 248 | |||
| 249 | pr_debug("PM: Reading swsusp image.\n"); | 243 | pr_debug("PM: Reading swsusp image.\n"); |
| 250 | 244 | ||
| 251 | error = swsusp_read(); | 245 | error = swsusp_read(); |
| @@ -268,7 +262,6 @@ static int software_resume(void) | |||
| 268 | enable_nonboot_cpus(); | 262 | enable_nonboot_cpus(); |
| 269 | Free: | 263 | Free: |
| 270 | swsusp_free(); | 264 | swsusp_free(); |
| 271 | platform_finish(); | ||
| 272 | device_resume(); | 265 | device_resume(); |
| 273 | resume_console(); | 266 | resume_console(); |
| 274 | Thaw: | 267 | Thaw: |
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) | |||
| 229 | size += highmem_size; | 229 | size += highmem_size; |
| 230 | for_each_zone (zone) | 230 | for_each_zone (zone) |
| 231 | if (populated_zone(zone)) { | 231 | if (populated_zone(zone)) { |
| 232 | tmp += snapshot_additional_pages(zone); | ||
| 232 | if (is_highmem(zone)) { | 233 | if (is_highmem(zone)) { |
| 233 | highmem_size -= | 234 | highmem_size -= |
| 234 | zone_page_state(zone, NR_FREE_PAGES); | 235 | zone_page_state(zone, NR_FREE_PAGES); |
| 235 | } else { | 236 | } else { |
| 236 | tmp -= zone_page_state(zone, NR_FREE_PAGES); | 237 | tmp -= zone_page_state(zone, NR_FREE_PAGES); |
| 237 | tmp += zone->lowmem_reserve[ZONE_NORMAL]; | 238 | tmp += zone->lowmem_reserve[ZONE_NORMAL]; |
| 238 | tmp += snapshot_additional_pages(zone); | ||
| 239 | } | 239 | } |
| 240 | } | 240 | } |
| 241 | 241 | ||
diff --git a/kernel/power/user.c b/kernel/power/user.c index dd09efe7df54..7cf6713b2325 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c | |||
| @@ -368,9 +368,12 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, | |||
| 368 | if (error) { | 368 | if (error) { |
| 369 | printk(KERN_ERR "Failed to suspend some devices.\n"); | 369 | printk(KERN_ERR "Failed to suspend some devices.\n"); |
| 370 | } else { | 370 | } else { |
| 371 | /* Enter S3, system is already frozen */ | 371 | error = disable_nonboot_cpus(); |
| 372 | suspend_enter(PM_SUSPEND_MEM); | 372 | if (!error) { |
| 373 | 373 | /* Enter S3, system is already frozen */ | |
| 374 | suspend_enter(PM_SUSPEND_MEM); | ||
| 375 | enable_nonboot_cpus(); | ||
| 376 | } | ||
| 374 | /* Wake up devices */ | 377 | /* Wake up devices */ |
| 375 | device_resume(); | 378 | device_resume(); |
| 376 | } | 379 | } |
diff --git a/kernel/sched.c b/kernel/sched.c index a4ca632c477c..b9a683730148 100644 --- a/kernel/sched.c +++ b/kernel/sched.c | |||
| @@ -4687,32 +4687,10 @@ out_unlock: | |||
| 4687 | return retval; | 4687 | return retval; |
| 4688 | } | 4688 | } |
| 4689 | 4689 | ||
| 4690 | static inline struct task_struct *eldest_child(struct task_struct *p) | ||
| 4691 | { | ||
| 4692 | if (list_empty(&p->children)) | ||
| 4693 | return NULL; | ||
| 4694 | return list_entry(p->children.next,struct task_struct,sibling); | ||
| 4695 | } | ||
| 4696 | |||
| 4697 | static inline struct task_struct *older_sibling(struct task_struct *p) | ||
| 4698 | { | ||
| 4699 | if (p->sibling.prev==&p->parent->children) | ||
| 4700 | return NULL; | ||
| 4701 | return list_entry(p->sibling.prev,struct task_struct,sibling); | ||
| 4702 | } | ||
| 4703 | |||
| 4704 | static inline struct task_struct *younger_sibling(struct task_struct *p) | ||
| 4705 | { | ||
| 4706 | if (p->sibling.next==&p->parent->children) | ||
| 4707 | return NULL; | ||
| 4708 | return list_entry(p->sibling.next,struct task_struct,sibling); | ||
| 4709 | } | ||
| 4710 | |||
| 4711 | static const char stat_nam[] = "RSDTtZX"; | 4690 | static const char stat_nam[] = "RSDTtZX"; |
| 4712 | 4691 | ||
| 4713 | static void show_task(struct task_struct *p) | 4692 | static void show_task(struct task_struct *p) |
| 4714 | { | 4693 | { |
| 4715 | struct task_struct *relative; | ||
| 4716 | unsigned long free = 0; | 4694 | unsigned long free = 0; |
| 4717 | unsigned state; | 4695 | unsigned state; |
| 4718 | 4696 | ||
| @@ -4738,19 +4716,7 @@ static void show_task(struct task_struct *p) | |||
| 4738 | free = (unsigned long)n - (unsigned long)end_of_stack(p); | 4716 | free = (unsigned long)n - (unsigned long)end_of_stack(p); |
| 4739 | } | 4717 | } |
| 4740 | #endif | 4718 | #endif |
| 4741 | printk("%5lu %5d %6d ", free, p->pid, p->parent->pid); | 4719 | printk("%5lu %5d %6d", free, p->pid, p->parent->pid); |
| 4742 | if ((relative = eldest_child(p))) | ||
| 4743 | printk("%5d ", relative->pid); | ||
| 4744 | else | ||
| 4745 | printk(" "); | ||
| 4746 | if ((relative = younger_sibling(p))) | ||
| 4747 | printk("%7d", relative->pid); | ||
| 4748 | else | ||
| 4749 | printk(" "); | ||
| 4750 | if ((relative = older_sibling(p))) | ||
| 4751 | printk(" %5d", relative->pid); | ||
| 4752 | else | ||
| 4753 | printk(" "); | ||
| 4754 | if (!p->mm) | 4720 | if (!p->mm) |
| 4755 | printk(" (L-TLB)\n"); | 4721 | printk(" (L-TLB)\n"); |
| 4756 | else | 4722 | else |
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 34b2301276ce..c904748f2290 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c | |||
| @@ -846,7 +846,8 @@ static ctl_table vm_table[] = { | |||
| 846 | .extra2 = &one_hundred, | 846 | .extra2 = &one_hundred, |
| 847 | }, | 847 | }, |
| 848 | #endif | 848 | #endif |
| 849 | #ifdef CONFIG_X86_32 | 849 | #if defined(CONFIG_X86_32) || \ |
| 850 | (defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL)) | ||
| 850 | { | 851 | { |
| 851 | .ctl_name = VM_VDSO_ENABLED, | 852 | .ctl_name = VM_VDSO_ENABLED, |
| 852 | .procname = "vdso_enabled", | 853 | .procname = "vdso_enabled", |
| @@ -1675,7 +1676,7 @@ static int proc_dointvec_taint(ctl_table *table, int write, struct file *filp, | |||
| 1675 | { | 1676 | { |
| 1676 | int op; | 1677 | int op; |
| 1677 | 1678 | ||
| 1678 | if (!capable(CAP_SYS_ADMIN)) | 1679 | if (write && !capable(CAP_SYS_ADMIN)) |
| 1679 | return -EPERM; | 1680 | return -EPERM; |
| 1680 | 1681 | ||
| 1681 | op = OP_OR; | 1682 | op = OP_OR; |
diff --git a/kernel/time.c b/kernel/time.c index c6c80ea5d0ea..2f47888e46c9 100644 --- a/kernel/time.c +++ b/kernel/time.c | |||
| @@ -635,6 +635,7 @@ timeval_to_jiffies(const struct timeval *value) | |||
| 635 | (((u64)usec * USEC_CONVERSION + USEC_ROUND) >> | 635 | (((u64)usec * USEC_CONVERSION + USEC_ROUND) >> |
| 636 | (USEC_JIFFIE_SC - SEC_JIFFIE_SC))) >> SEC_JIFFIE_SC; | 636 | (USEC_JIFFIE_SC - SEC_JIFFIE_SC))) >> SEC_JIFFIE_SC; |
| 637 | } | 637 | } |
| 638 | EXPORT_SYMBOL(timeval_to_jiffies); | ||
| 638 | 639 | ||
| 639 | void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value) | 640 | void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value) |
| 640 | { | 641 | { |
| @@ -649,6 +650,7 @@ void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value) | |||
| 649 | tv_usec /= NSEC_PER_USEC; | 650 | tv_usec /= NSEC_PER_USEC; |
| 650 | value->tv_usec = tv_usec; | 651 | value->tv_usec = tv_usec; |
| 651 | } | 652 | } |
| 653 | EXPORT_SYMBOL(jiffies_to_timeval); | ||
| 652 | 654 | ||
| 653 | /* | 655 | /* |
| 654 | * Convert jiffies/jiffies_64 to clock_t and back. | 656 | * 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) | |||
| 274 | } | 274 | } |
| 275 | EXPORT_SYMBOL_GPL(clockevents_notify); | 275 | EXPORT_SYMBOL_GPL(clockevents_notify); |
| 276 | 276 | ||
| 277 | #ifdef CONFIG_SYSFS | ||
| 278 | |||
| 279 | /** | ||
| 280 | * clockevents_show_registered - sysfs interface for listing clockevents | ||
| 281 | * @dev: unused | ||
| 282 | * @buf: char buffer to be filled with clock events list | ||
| 283 | * | ||
| 284 | * Provides sysfs interface for listing registered clock event devices | ||
| 285 | */ | ||
| 286 | static ssize_t clockevents_show_registered(struct sys_device *dev, char *buf) | ||
| 287 | { | ||
| 288 | struct list_head *tmp; | ||
| 289 | char *p = buf; | ||
| 290 | int cpu; | ||
| 291 | |||
| 292 | spin_lock(&clockevents_lock); | ||
| 293 | |||
| 294 | list_for_each(tmp, &clockevent_devices) { | ||
| 295 | struct clock_event_device *ce; | ||
| 296 | |||
| 297 | ce = list_entry(tmp, struct clock_event_device, list); | ||
| 298 | p += sprintf(p, "%-20s F:%04x M:%d", ce->name, | ||
| 299 | ce->features, ce->mode); | ||
| 300 | p += sprintf(p, " C:"); | ||
| 301 | if (!cpus_equal(ce->cpumask, cpu_possible_map)) { | ||
| 302 | for_each_cpu_mask(cpu, ce->cpumask) | ||
| 303 | p += sprintf(p, " %d", cpu); | ||
| 304 | } else { | ||
| 305 | /* | ||
| 306 | * FIXME: Add the cpu which is handling this sucker | ||
| 307 | */ | ||
| 308 | } | ||
| 309 | p += sprintf(p, "\n"); | ||
| 310 | } | ||
| 311 | |||
| 312 | spin_unlock(&clockevents_lock); | ||
| 313 | |||
| 314 | return p - buf; | ||
| 315 | } | ||
| 316 | |||
| 317 | /* | ||
| 318 | * Sysfs setup bits: | ||
| 319 | */ | ||
| 320 | static SYSDEV_ATTR(registered, 0600, | ||
| 321 | clockevents_show_registered, NULL); | ||
| 322 | |||
| 323 | static struct sysdev_class clockevents_sysclass = { | ||
| 324 | set_kset_name("clockevents"), | ||
| 325 | }; | ||
| 326 | |||
| 327 | static struct sys_device clockevents_sys_device = { | ||
| 328 | .id = 0, | ||
| 329 | .cls = &clockevents_sysclass, | ||
| 330 | }; | ||
| 331 | |||
| 332 | static int __init clockevents_sysfs_init(void) | ||
| 333 | { | ||
| 334 | int error = sysdev_class_register(&clockevents_sysclass); | ||
| 335 | |||
| 336 | if (!error) | ||
| 337 | error = sysdev_register(&clockevents_sys_device); | ||
| 338 | if (!error) | ||
| 339 | error = sysdev_create_file( | ||
| 340 | &clockevents_sys_device, | ||
| 341 | &attr_registered); | ||
| 342 | return error; | ||
| 343 | } | ||
| 344 | device_initcall(clockevents_sysfs_init); | ||
| 345 | #endif | ||
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 5b0e46b56fd0..fe5c7db24247 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c | |||
| @@ -151,7 +151,8 @@ static void clocksource_check_watchdog(struct clocksource *cs) | |||
| 151 | watchdog_timer.expires = jiffies + WATCHDOG_INTERVAL; | 151 | watchdog_timer.expires = jiffies + WATCHDOG_INTERVAL; |
| 152 | add_timer(&watchdog_timer); | 152 | add_timer(&watchdog_timer); |
| 153 | } | 153 | } |
| 154 | } else if (cs->flags & CLOCK_SOURCE_IS_CONTINUOUS) { | 154 | } else { |
| 155 | if (cs->flags & CLOCK_SOURCE_IS_CONTINUOUS) | ||
| 155 | cs->flags |= CLOCK_SOURCE_VALID_FOR_HRES; | 156 | cs->flags |= CLOCK_SOURCE_VALID_FOR_HRES; |
| 156 | 157 | ||
| 157 | if (!watchdog || cs->rating > watchdog->rating) { | 158 | if (!watchdog || cs->rating > watchdog->rating) { |
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) | |||
| 69 | return clocksource_register(&clocksource_jiffies); | 69 | return clocksource_register(&clocksource_jiffies); |
| 70 | } | 70 | } |
| 71 | 71 | ||
| 72 | module_init(init_jiffies_clocksource); | 72 | 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; | |||
| 32 | /* TIME_ERROR prevents overwriting the CMOS clock */ | 32 | /* TIME_ERROR prevents overwriting the CMOS clock */ |
| 33 | static int time_state = TIME_OK; /* clock synchronization status */ | 33 | static int time_state = TIME_OK; /* clock synchronization status */ |
| 34 | int time_status = STA_UNSYNC; /* clock status bits */ | 34 | int time_status = STA_UNSYNC; /* clock status bits */ |
| 35 | static long time_offset; /* time adjustment (ns) */ | 35 | static s64 time_offset; /* time adjustment (ns) */ |
| 36 | static long time_constant = 2; /* pll time constant */ | 36 | static long time_constant = 2; /* pll time constant */ |
| 37 | long time_maxerror = NTP_PHASE_LIMIT; /* maximum error (us) */ | 37 | long time_maxerror = NTP_PHASE_LIMIT; /* maximum error (us) */ |
| 38 | long time_esterror = NTP_PHASE_LIMIT; /* estimated error (us) */ | 38 | long time_esterror = NTP_PHASE_LIMIT; /* estimated error (us) */ |
| @@ -196,7 +196,7 @@ void __attribute__ ((weak)) notify_arch_cmos_timer(void) | |||
| 196 | */ | 196 | */ |
| 197 | int do_adjtimex(struct timex *txc) | 197 | int do_adjtimex(struct timex *txc) |
| 198 | { | 198 | { |
| 199 | long ltemp, mtemp, save_adjust; | 199 | long mtemp, save_adjust, rem; |
| 200 | s64 freq_adj, temp64; | 200 | s64 freq_adj, temp64; |
| 201 | int result; | 201 | int result; |
| 202 | 202 | ||
| @@ -277,14 +277,14 @@ int do_adjtimex(struct timex *txc) | |||
| 277 | time_adjust = txc->offset; | 277 | time_adjust = txc->offset; |
| 278 | } | 278 | } |
| 279 | else if (time_status & STA_PLL) { | 279 | else if (time_status & STA_PLL) { |
| 280 | ltemp = txc->offset * NSEC_PER_USEC; | 280 | time_offset = txc->offset * NSEC_PER_USEC; |
| 281 | 281 | ||
| 282 | /* | 282 | /* |
| 283 | * Scale the phase adjustment and | 283 | * Scale the phase adjustment and |
| 284 | * clamp to the operating range. | 284 | * clamp to the operating range. |
| 285 | */ | 285 | */ |
| 286 | time_offset = min(ltemp, MAXPHASE * NSEC_PER_USEC); | 286 | time_offset = min(time_offset, (s64)MAXPHASE * NSEC_PER_USEC); |
| 287 | time_offset = max(time_offset, -MAXPHASE * NSEC_PER_USEC); | 287 | time_offset = max(time_offset, (s64)-MAXPHASE * NSEC_PER_USEC); |
| 288 | 288 | ||
| 289 | /* | 289 | /* |
| 290 | * Select whether the frequency is to be controlled | 290 | * Select whether the frequency is to be controlled |
| @@ -297,11 +297,11 @@ int do_adjtimex(struct timex *txc) | |||
| 297 | mtemp = xtime.tv_sec - time_reftime; | 297 | mtemp = xtime.tv_sec - time_reftime; |
| 298 | time_reftime = xtime.tv_sec; | 298 | time_reftime = xtime.tv_sec; |
| 299 | 299 | ||
| 300 | freq_adj = (s64)time_offset * mtemp; | 300 | freq_adj = time_offset * mtemp; |
| 301 | freq_adj = shift_right(freq_adj, time_constant * 2 + | 301 | freq_adj = shift_right(freq_adj, time_constant * 2 + |
| 302 | (SHIFT_PLL + 2) * 2 - SHIFT_NSEC); | 302 | (SHIFT_PLL + 2) * 2 - SHIFT_NSEC); |
| 303 | if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) { | 303 | if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) { |
| 304 | temp64 = (s64)time_offset << (SHIFT_NSEC - SHIFT_FLL); | 304 | temp64 = time_offset << (SHIFT_NSEC - SHIFT_FLL); |
| 305 | if (time_offset < 0) { | 305 | if (time_offset < 0) { |
| 306 | temp64 = -temp64; | 306 | temp64 = -temp64; |
| 307 | do_div(temp64, mtemp); | 307 | do_div(temp64, mtemp); |
| @@ -314,8 +314,10 @@ int do_adjtimex(struct timex *txc) | |||
| 314 | freq_adj += time_freq; | 314 | freq_adj += time_freq; |
| 315 | freq_adj = min(freq_adj, (s64)MAXFREQ_NSEC); | 315 | freq_adj = min(freq_adj, (s64)MAXFREQ_NSEC); |
| 316 | time_freq = max(freq_adj, (s64)-MAXFREQ_NSEC); | 316 | time_freq = max(freq_adj, (s64)-MAXFREQ_NSEC); |
| 317 | time_offset = (time_offset / NTP_INTERVAL_FREQ) | 317 | time_offset = div_long_long_rem_signed(time_offset, |
| 318 | << SHIFT_UPDATE; | 318 | NTP_INTERVAL_FREQ, |
| 319 | &rem); | ||
| 320 | time_offset <<= SHIFT_UPDATE; | ||
| 319 | } /* STA_PLL */ | 321 | } /* STA_PLL */ |
| 320 | } /* txc->modes & ADJ_OFFSET */ | 322 | } /* txc->modes & ADJ_OFFSET */ |
| 321 | if (txc->modes & ADJ_TICK) | 323 | if (txc->modes & ADJ_TICK) |
| @@ -328,12 +330,12 @@ leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0) | |||
| 328 | result = TIME_ERROR; | 330 | result = TIME_ERROR; |
| 329 | 331 | ||
| 330 | if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT) | 332 | if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT) |
| 331 | txc->offset = save_adjust; | 333 | txc->offset = save_adjust; |
| 332 | else | 334 | else |
| 333 | txc->offset = shift_right(time_offset, SHIFT_UPDATE) | 335 | txc->offset = ((long)shift_right(time_offset, SHIFT_UPDATE)) * |
| 334 | * NTP_INTERVAL_FREQ / 1000; | 336 | NTP_INTERVAL_FREQ / 1000; |
| 335 | txc->freq = (time_freq / NSEC_PER_USEC) | 337 | txc->freq = (time_freq / NSEC_PER_USEC) << |
| 336 | << (SHIFT_USEC - SHIFT_NSEC); | 338 | (SHIFT_USEC - SHIFT_NSEC); |
| 337 | txc->maxerror = time_maxerror; | 339 | txc->maxerror = time_maxerror; |
| 338 | txc->esterror = time_esterror; | 340 | txc->esterror = time_esterror; |
| 339 | txc->status = time_status; | 341 | txc->status = time_status; |
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 5567745470f7..eadfce2fff74 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c | |||
| @@ -307,12 +307,19 @@ int tick_resume_broadcast(void) | |||
| 307 | spin_lock_irqsave(&tick_broadcast_lock, flags); | 307 | spin_lock_irqsave(&tick_broadcast_lock, flags); |
| 308 | 308 | ||
| 309 | bc = tick_broadcast_device.evtdev; | 309 | bc = tick_broadcast_device.evtdev; |
| 310 | if (bc) { | ||
| 311 | if (tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC && | ||
| 312 | !cpus_empty(tick_broadcast_mask)) | ||
| 313 | tick_broadcast_start_periodic(bc); | ||
| 314 | 310 | ||
| 315 | broadcast = cpu_isset(smp_processor_id(), tick_broadcast_mask); | 311 | if (bc) { |
| 312 | switch (tick_broadcast_device.mode) { | ||
| 313 | case TICKDEV_MODE_PERIODIC: | ||
| 314 | if(!cpus_empty(tick_broadcast_mask)) | ||
| 315 | tick_broadcast_start_periodic(bc); | ||
| 316 | broadcast = cpu_isset(smp_processor_id(), | ||
| 317 | tick_broadcast_mask); | ||
| 318 | break; | ||
| 319 | case TICKDEV_MODE_ONESHOT: | ||
| 320 | broadcast = tick_resume_broadcast_oneshot(bc); | ||
| 321 | break; | ||
| 322 | } | ||
| 316 | } | 323 | } |
| 317 | spin_unlock_irqrestore(&tick_broadcast_lock, flags); | 324 | spin_unlock_irqrestore(&tick_broadcast_lock, flags); |
| 318 | 325 | ||
| @@ -347,6 +354,16 @@ static int tick_broadcast_set_event(ktime_t expires, int force) | |||
| 347 | } | 354 | } |
| 348 | } | 355 | } |
| 349 | 356 | ||
| 357 | int tick_resume_broadcast_oneshot(struct clock_event_device *bc) | ||
| 358 | { | ||
| 359 | clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); | ||
| 360 | |||
| 361 | if(!cpus_empty(tick_broadcast_oneshot_mask)) | ||
| 362 | tick_broadcast_set_event(ktime_get(), 1); | ||
| 363 | |||
| 364 | return cpu_isset(smp_processor_id(), tick_broadcast_oneshot_mask); | ||
| 365 | } | ||
| 366 | |||
| 350 | /* | 367 | /* |
| 351 | * Reprogram the broadcast device: | 368 | * Reprogram the broadcast device: |
| 352 | * | 369 | * |
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index 43ba1bdec14c..bfda3f7f0716 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c | |||
| @@ -298,18 +298,17 @@ static void tick_shutdown(unsigned int *cpup) | |||
| 298 | spin_unlock_irqrestore(&tick_device_lock, flags); | 298 | spin_unlock_irqrestore(&tick_device_lock, flags); |
| 299 | } | 299 | } |
| 300 | 300 | ||
| 301 | static void tick_suspend_periodic(void) | 301 | static void tick_suspend(void) |
| 302 | { | 302 | { |
| 303 | struct tick_device *td = &__get_cpu_var(tick_cpu_device); | 303 | struct tick_device *td = &__get_cpu_var(tick_cpu_device); |
| 304 | unsigned long flags; | 304 | unsigned long flags; |
| 305 | 305 | ||
| 306 | spin_lock_irqsave(&tick_device_lock, flags); | 306 | spin_lock_irqsave(&tick_device_lock, flags); |
| 307 | if (td->mode == TICKDEV_MODE_PERIODIC) | 307 | clockevents_set_mode(td->evtdev, CLOCK_EVT_MODE_SHUTDOWN); |
| 308 | clockevents_set_mode(td->evtdev, CLOCK_EVT_MODE_SHUTDOWN); | ||
| 309 | spin_unlock_irqrestore(&tick_device_lock, flags); | 308 | spin_unlock_irqrestore(&tick_device_lock, flags); |
| 310 | } | 309 | } |
| 311 | 310 | ||
| 312 | static void tick_resume_periodic(void) | 311 | static void tick_resume(void) |
| 313 | { | 312 | { |
| 314 | struct tick_device *td = &__get_cpu_var(tick_cpu_device); | 313 | struct tick_device *td = &__get_cpu_var(tick_cpu_device); |
| 315 | unsigned long flags; | 314 | unsigned long flags; |
| @@ -317,6 +316,8 @@ static void tick_resume_periodic(void) | |||
| 317 | spin_lock_irqsave(&tick_device_lock, flags); | 316 | spin_lock_irqsave(&tick_device_lock, flags); |
| 318 | if (td->mode == TICKDEV_MODE_PERIODIC) | 317 | if (td->mode == TICKDEV_MODE_PERIODIC) |
| 319 | tick_setup_periodic(td->evtdev, 0); | 318 | tick_setup_periodic(td->evtdev, 0); |
| 319 | else | ||
| 320 | tick_resume_oneshot(); | ||
| 320 | spin_unlock_irqrestore(&tick_device_lock, flags); | 321 | spin_unlock_irqrestore(&tick_device_lock, flags); |
| 321 | } | 322 | } |
| 322 | 323 | ||
| @@ -348,13 +349,13 @@ static int tick_notify(struct notifier_block *nb, unsigned long reason, | |||
| 348 | break; | 349 | break; |
| 349 | 350 | ||
| 350 | case CLOCK_EVT_NOTIFY_SUSPEND: | 351 | case CLOCK_EVT_NOTIFY_SUSPEND: |
| 351 | tick_suspend_periodic(); | 352 | tick_suspend(); |
| 352 | tick_suspend_broadcast(); | 353 | tick_suspend_broadcast(); |
| 353 | break; | 354 | break; |
| 354 | 355 | ||
| 355 | case CLOCK_EVT_NOTIFY_RESUME: | 356 | case CLOCK_EVT_NOTIFY_RESUME: |
| 356 | if (!tick_resume_broadcast()) | 357 | if (!tick_resume_broadcast()) |
| 357 | tick_resume_periodic(); | 358 | tick_resume(); |
| 358 | break; | 359 | break; |
| 359 | 360 | ||
| 360 | default: | 361 | default: |
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h index 75890efd24ff..c9d203bde518 100644 --- a/kernel/time/tick-internal.h +++ b/kernel/time/tick-internal.h | |||
| @@ -19,12 +19,13 @@ extern void tick_setup_oneshot(struct clock_event_device *newdev, | |||
| 19 | extern int tick_program_event(ktime_t expires, int force); | 19 | extern int tick_program_event(ktime_t expires, int force); |
| 20 | extern void tick_oneshot_notify(void); | 20 | extern void tick_oneshot_notify(void); |
| 21 | extern int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *)); | 21 | extern int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *)); |
| 22 | 22 | extern void tick_resume_oneshot(void); | |
| 23 | # ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST | 23 | # ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST |
| 24 | extern void tick_broadcast_setup_oneshot(struct clock_event_device *bc); | 24 | extern void tick_broadcast_setup_oneshot(struct clock_event_device *bc); |
| 25 | extern void tick_broadcast_oneshot_control(unsigned long reason); | 25 | extern void tick_broadcast_oneshot_control(unsigned long reason); |
| 26 | extern void tick_broadcast_switch_to_oneshot(void); | 26 | extern void tick_broadcast_switch_to_oneshot(void); |
| 27 | extern void tick_shutdown_broadcast_oneshot(unsigned int *cpup); | 27 | extern void tick_shutdown_broadcast_oneshot(unsigned int *cpup); |
| 28 | extern int tick_resume_broadcast_oneshot(struct clock_event_device *bc); | ||
| 28 | # else /* BROADCAST */ | 29 | # else /* BROADCAST */ |
| 29 | static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc) | 30 | static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc) |
| 30 | { | 31 | { |
| @@ -43,6 +44,10 @@ void tick_setup_oneshot(struct clock_event_device *newdev, | |||
| 43 | { | 44 | { |
| 44 | BUG(); | 45 | BUG(); |
| 45 | } | 46 | } |
| 47 | static inline void tick_resume_oneshot(void) | ||
| 48 | { | ||
| 49 | BUG(); | ||
| 50 | } | ||
| 46 | static inline int tick_program_event(ktime_t expires, int force) | 51 | static inline int tick_program_event(ktime_t expires, int force) |
| 47 | { | 52 | { |
| 48 | return 0; | 53 | return 0; |
| @@ -54,6 +59,10 @@ static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc) | |||
| 54 | } | 59 | } |
| 55 | static inline void tick_broadcast_oneshot_control(unsigned long reason) { } | 60 | static inline void tick_broadcast_oneshot_control(unsigned long reason) { } |
| 56 | static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { } | 61 | static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { } |
| 62 | static inline int tick_resume_broadcast_oneshot(struct clock_event_device *bc) | ||
| 63 | { | ||
| 64 | return 0; | ||
| 65 | } | ||
| 57 | #endif /* !TICK_ONESHOT */ | 66 | #endif /* !TICK_ONESHOT */ |
| 58 | 67 | ||
| 59 | /* | 68 | /* |
diff --git a/kernel/time/tick-oneshot.c b/kernel/time/tick-oneshot.c index 2e8b7ff863cc..f6997ab0c3c9 100644 --- a/kernel/time/tick-oneshot.c +++ b/kernel/time/tick-oneshot.c | |||
| @@ -41,6 +41,18 @@ int tick_program_event(ktime_t expires, int force) | |||
| 41 | } | 41 | } |
| 42 | 42 | ||
| 43 | /** | 43 | /** |
| 44 | * tick_resume_onshot - resume oneshot mode | ||
| 45 | */ | ||
| 46 | void tick_resume_oneshot(void) | ||
| 47 | { | ||
| 48 | struct tick_device *td = &__get_cpu_var(tick_cpu_device); | ||
| 49 | struct clock_event_device *dev = td->evtdev; | ||
| 50 | |||
| 51 | clockevents_set_mode(dev, CLOCK_EVT_MODE_ONESHOT); | ||
| 52 | tick_program_event(ktime_get(), 1); | ||
| 53 | } | ||
| 54 | |||
| 55 | /** | ||
| 44 | * tick_setup_oneshot - setup the event device for oneshot mode (hres or nohz) | 56 | * tick_setup_oneshot - setup the event device for oneshot mode (hres or nohz) |
| 45 | */ | 57 | */ |
| 46 | void tick_setup_oneshot(struct clock_event_device *newdev, | 58 | void tick_setup_oneshot(struct clock_event_device *newdev, |
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index f82c635c3d5c..59df5e8555a8 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c | |||
| @@ -194,9 +194,9 @@ print_tickdevice(struct seq_file *m, struct tick_device *td) | |||
| 194 | return; | 194 | return; |
| 195 | } | 195 | } |
| 196 | SEQ_printf(m, "%s\n", dev->name); | 196 | SEQ_printf(m, "%s\n", dev->name); |
| 197 | SEQ_printf(m, " max_delta_ns: %ld\n", dev->max_delta_ns); | 197 | SEQ_printf(m, " max_delta_ns: %lu\n", dev->max_delta_ns); |
| 198 | SEQ_printf(m, " min_delta_ns: %ld\n", dev->min_delta_ns); | 198 | SEQ_printf(m, " min_delta_ns: %lu\n", dev->min_delta_ns); |
| 199 | SEQ_printf(m, " mult: %ld\n", dev->mult); | 199 | SEQ_printf(m, " mult: %lu\n", dev->mult); |
| 200 | SEQ_printf(m, " shift: %d\n", dev->shift); | 200 | SEQ_printf(m, " shift: %d\n", dev->shift); |
| 201 | SEQ_printf(m, " mode: %d\n", dev->mode); | 201 | SEQ_printf(m, " mode: %d\n", dev->mode); |
| 202 | SEQ_printf(m, " next_event: %Ld nsecs\n", | 202 | SEQ_printf(m, " next_event: %Ld nsecs\n", |
diff --git a/kernel/timer.c b/kernel/timer.c index 797cccb86431..dd6c2c1c561b 100644 --- a/kernel/timer.c +++ b/kernel/timer.c | |||
| @@ -695,15 +695,28 @@ static unsigned long cmp_next_hrtimer_event(unsigned long now, | |||
| 695 | { | 695 | { |
| 696 | ktime_t hr_delta = hrtimer_get_next_event(); | 696 | ktime_t hr_delta = hrtimer_get_next_event(); |
| 697 | struct timespec tsdelta; | 697 | struct timespec tsdelta; |
| 698 | unsigned long delta; | ||
| 698 | 699 | ||
| 699 | if (hr_delta.tv64 == KTIME_MAX) | 700 | if (hr_delta.tv64 == KTIME_MAX) |
| 700 | return expires; | 701 | return expires; |
| 701 | 702 | ||
| 702 | if (hr_delta.tv64 <= TICK_NSEC) | 703 | /* |
| 703 | return now; | 704 | * Expired timer available, let it expire in the next tick |
| 705 | */ | ||
| 706 | if (hr_delta.tv64 <= 0) | ||
| 707 | return now + 1; | ||
| 704 | 708 | ||
| 705 | tsdelta = ktime_to_timespec(hr_delta); | 709 | tsdelta = ktime_to_timespec(hr_delta); |
| 706 | now += timespec_to_jiffies(&tsdelta); | 710 | delta = timespec_to_jiffies(&tsdelta); |
| 711 | /* | ||
| 712 | * Take rounding errors in to account and make sure, that it | ||
| 713 | * expires in the next tick. Otherwise we go into an endless | ||
| 714 | * ping pong due to tick_nohz_stop_sched_tick() retriggering | ||
| 715 | * the timer softirq | ||
| 716 | */ | ||
| 717 | if (delta < 1) | ||
| 718 | delta = 1; | ||
| 719 | now += delta; | ||
| 707 | if (time_before(now, expires)) | 720 | if (time_before(now, expires)) |
| 708 | return now; | 721 | return now; |
| 709 | return expires; | 722 | return expires; |
| @@ -1003,7 +1016,7 @@ static int timekeeping_resume(struct sys_device *dev) | |||
| 1003 | clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL); | 1016 | clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL); |
| 1004 | 1017 | ||
| 1005 | /* Resume hrtimers */ | 1018 | /* Resume hrtimers */ |
| 1006 | clock_was_set(); | 1019 | hres_timers_resume(); |
| 1007 | 1020 | ||
| 1008 | return 0; | 1021 | return 0; |
| 1009 | } | 1022 | } |
