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| ATOMIC_DEC_AND_MUTEX(9) | Mutex API reference | ATOMIC_DEC_AND_MUTEX(9) |
NAME¶
atomic_dec_and_mutex_lock - return holding mutex if we dec to 0
SYNOPSIS¶
int atomic_dec_and_mutex_lock(atomic_t * cnt, struct mutex * lock);
ARGUMENTS¶
atomic_t * cnt
the atomic which we are to dec
struct mutex * lock
the mutex to return holding if we dec to 0
DESCRIPTION¶
return true and hold lock if we dec to 0, return false otherwise
AUTHOR¶
Rusty Russell <rusty@rustcorp.com.au>
Author.
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.12 |