1. NAME▲

atomic_dec_and_mutex_lock - return holding mutex if we dec to 0

2. SYNOPSIS ▲

int atomic_dec_and_mutex_lock(atomic_t *  cnt , struct mutex *  lock );

3. ARGUMENTS ▲

cnt
    the atomic which we are to dec

lock
    the mutex to return holding if we dec to 0

4. DESCRIPTION ▲

return true and hold lock if we dec to 0, return false otherwise

5. AUTHOR ▲

Rusty Russell <>
    Author.

6. COPYRIGHT ▲