diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/fork.c | 2 | ||||
| -rw-r--r-- | kernel/futex.c | 2 | ||||
| -rw-r--r-- | kernel/hrtimer.c | 11 | ||||
| -rw-r--r-- | kernel/power/console.c | 10 | ||||
| -rw-r--r-- | kernel/power/disk.c | 2 | ||||
| -rw-r--r-- | kernel/power/user.c | 3 |
6 files changed, 25 insertions, 5 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index d154cc78648..6af959c034d 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -933,8 +933,8 @@ asmlinkage long sys_set_tid_address(int __user *tidptr) static inline void rt_mutex_init_task(struct task_struct *p) { -#ifdef CONFIG_RT_MUTEXES spin_lock_init(&p->pi_lock); +#ifdef CONFIG_RT_MUTEXES plist_head_init(&p->pi_waiters, &p->pi_lock); p->pi_blocked_on = NULL; #endif diff --git a/kernel/futex.c b/kernel/futex.c index e749e7df14b..5a270b5e3f9 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) if (!pi_state) return -EINVAL; + spin_lock(&pi_state->pi_mutex.wait_lock); new_owner = rt_mutex_next_owner(&pi_state->pi_mutex); /* @@ -604,6 +605,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this) pi_state->owner = new_owner; spin_unlock_irq(&new_owner->pi_lock); + spin_unlock(&pi_state->pi_mutex.wait_lock); rt_mutex_unlock(&pi_state->pi_mutex); return 0; diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index ec4cb9f3e3b..6a7938a0d51 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -135,7 +135,7 @@ EXPORT_SYMBOL_GPL(ktime_get_ts); static void hrtimer_get_softirq_time(struct hrtimer_cpu_base *base) { ktime_t xtim, tomono; - struct timespec xts; + struct timespec xts, tom; unsigned long seq; do { @@ -145,10 +145,11 @@ static void hrtimer_get_softirq_time(struct hrtimer_cpu_base *base) #else xts = xtime; #endif + tom = wall_to_monotonic; } while (read_seqretry(&xtime_lock, seq)); xtim = timespec_to_ktime(xts); - tomono = timespec_to_ktime(wall_to_monotonic); + tomono = timespec_to_ktime(tom); base->clock_base[CLOCK_REALTIME].softirq_time = xtim; base->clock_base[CLOCK_MONOTONIC].softirq_time = ktime_add(xtim, tomono); @@ -644,6 +645,12 @@ hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval) orun++; } timer->expires = ktime_add(timer->expires, interval); + /* + * Make sure, that the result did not wrap with a very large + * interval. + */ + if (timer->expires.tv64 < 0) + timer->expires = ktime_set(KTIME_SEC_MAX, 0); return orun; } diff --git a/kernel/power/console.c b/kernel/power/console.c index 623786d4415..89bcf4973ee 100644 --- a/kernel/power/console.c +++ b/kernel/power/console.c @@ -27,7 +27,15 @@ int pm_prepare_console(void) return 1; } - set_console(SUSPEND_CONSOLE); + if (set_console(SUSPEND_CONSOLE)) { + /* + * We're unable to switch to the SUSPEND_CONSOLE. + * Let the calling function know so it can decide + * what to do. + */ + release_console_sem(); + return 1; + } release_console_sem(); if (vt_waitactive(SUSPEND_CONSOLE)) { diff --git a/kernel/power/disk.c b/kernel/power/disk.c index 406b20adb27..873cdf8ea5a 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c @@ -58,6 +58,7 @@ static inline int platform_prepare(void) static void power_down(suspend_disk_method_t mode) { + disable_nonboot_cpus(); switch(mode) { case PM_DISK_PLATFORM: if (pm_ops && pm_ops->enter) { @@ -251,6 +252,7 @@ static int software_resume(void) error = swsusp_read(); if (error) { swsusp_free(); + platform_finish(); goto Thaw; } diff --git a/kernel/power/user.c b/kernel/power/user.c index dd09efe7df5..d6a8dcc26ae 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -398,9 +398,10 @@ 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); - error = 0; + enable_nonboot_cpus(); } break; |