diff options
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/lockdep.c | 12 | ||||
| -rw-r--r-- | kernel/locking/locktorture.c | 6 | ||||
| -rw-r--r-- | kernel/locking/mutex.c | 24 |
3 files changed, 36 insertions, 6 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index bf6072524756..9812e5dd409e 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -4412,13 +4412,13 @@ void lockdep_rcu_suspicious(const char *file, const int line, const char *s) #endif /* #ifdef CONFIG_PROVE_RCU_REPEATEDLY */ /* Note: the following can be executed concurrently, so be careful. */ printk("\n"); - printk("===============================\n"); - printk("[ INFO: suspicious RCU usage. ]\n"); + pr_err("===============================\n"); + pr_err("[ ERR: suspicious RCU usage. ]\n"); print_kernel_ident(); - printk("-------------------------------\n"); - printk("%s:%d %s!\n", file, line, s); - printk("\nother info that might help us debug this:\n\n"); - printk("\n%srcu_scheduler_active = %d, debug_locks = %d\n", + pr_err("-------------------------------\n"); + pr_err("%s:%d %s!\n", file, line, s); + pr_err("\nother info that might help us debug this:\n\n"); + pr_err("\n%srcu_scheduler_active = %d, debug_locks = %d\n", !rcu_lockdep_current_cpu_online() ? "RCU used illegally from offline CPU!\n" : !rcu_is_watching() diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c index 9bffedd82884..28350dc8ecbb 100644 --- a/kernel/locking/locktorture.c +++ b/kernel/locking/locktorture.c @@ -852,6 +852,10 @@ static void lock_torture_cleanup(void) else lock_torture_print_module_parms(cxt.cur_ops, "End of test: SUCCESS"); + + kfree(cxt.lwsa); + kfree(cxt.lrsa); + end: torture_cleanup_end(); } @@ -997,6 +1001,8 @@ static int __init lock_torture_init(void) GFP_KERNEL); if (reader_tasks == NULL) { VERBOSE_TOROUT_ERRSTRING("reader_tasks: Out of memory"); + kfree(writer_tasks); + writer_tasks = NULL; firsterr = -ENOMEM; goto unwind; } diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c index 705e06fe5e6c..ad2d9e22697b 100644 --- a/kernel/locking/mutex.c +++ b/kernel/locking/mutex.c @@ -929,6 +929,20 @@ mutex_lock_interruptible_nested(struct mutex *lock, unsigned int subclass) } EXPORT_SYMBOL_GPL(mutex_lock_interruptible_nested); +void __sched +mutex_lock_io_nested(struct mutex *lock, unsigned int subclass) +{ + int token; + + might_sleep(); + + token = io_schedule_prepare(); + __mutex_lock_common(lock, TASK_UNINTERRUPTIBLE, + subclass, NULL, _RET_IP_, NULL, 0); + io_schedule_finish(token); +} +EXPORT_SYMBOL_GPL(mutex_lock_io_nested); + static inline int ww_mutex_deadlock_injection(struct ww_mutex *lock, struct ww_acquire_ctx *ctx) { @@ -1099,6 +1113,16 @@ int __sched mutex_lock_killable(struct mutex *lock) } EXPORT_SYMBOL(mutex_lock_killable); +void __sched mutex_lock_io(struct mutex *lock) +{ + int token; + + token = io_schedule_prepare(); + mutex_lock(lock); + io_schedule_finish(token); +} +EXPORT_SYMBOL_GPL(mutex_lock_io); + static noinline void __sched __mutex_lock_slowpath(struct mutex *lock) { |