MUTEX_TRYLOCK(9) Mutex API reference MUTEX_TRYLOCK(9)NAMEmutex_trylock - try to acquire the mutex, without waiting
SYNOPSIS
int __sched mutex_trylock(struct mutex * lock);
ARGUMENTS
lock
the mutex to be acquired
DESCRIPTION
Try to acquire the mutex atomically. Returns 1 if the mutex has been
acquired successfully, and 0 on contention.
NOTE
this function follows the spin_trylock convention, so it is negated
from the down_trylock return values! Be careful about this when
converting semaphore users to mutexes.
This function must not be used in interrupt context. The mutex must be
released by the same task that acquired it.
AUTHOR
Rusty Russell <rusty@rustcorp.com.au>
Author.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 MUTEX_TRYLOCK(9)