mutex_trylock man page on OpenSuSE

mutex_trylock man page on OpenSuSE

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MUTEX_TRYLOCK(9)	      Mutex API reference	      MUTEX_TRYLOCK(9)

NAME
       mutex_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.

COPYRIGHT
Kernel Hackers Manual 3.11	 November 2013		      MUTEX_TRYLOCK(9)

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