Question

What is the equivalent of pthread_mutex_lock and pthread_cond_wait in the linux kernel. and how to use them. Could you please provide simple (hello world) examples.

Answer 1

• For the mutex (as Als said ):

mutex_lock() and mutex_unlock() and we should init the mutex before we use it with mutex_init() (from #include <linux/mutex.h>)

• For the equivalent of pthread_cond_wait

wait_event_interruptible() and wake_up_interruptible() and we should init the wait_queue_head with init_waitqueue_head() (from #include <linux/wait.h>)