Searched refs:__sl_cas (Results 1 – 1 of 1) sorted by relevance
| /Linux-v4.19/arch/sh/include/asm/ |
| D | spinlock-cas.h | 16 static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new) in __sl_cas() function
33 while (!__sl_cas(&lock->lock, 1, 0)); in arch_spin_lock()
38 __sl_cas(&lock->lock, 0, 1); in arch_spin_unlock()
43 return __sl_cas(&lock->lock, 1, 0); in arch_spin_trylock()
59 while (!old || __sl_cas(&rw->lock, old, old-1) != old); in arch_read_lock()
66 while (__sl_cas(&rw->lock, old, old+1) != old); in arch_read_unlock()
71 while (__sl_cas(&rw->lock, RW_LOCK_BIAS, 0) != RW_LOCK_BIAS); in arch_write_lock()
76 __sl_cas(&rw->lock, 0, RW_LOCK_BIAS); in arch_write_unlock()
83 while (old && __sl_cas(&rw->lock, old, old-1) != old); in arch_read_trylock()
89 return __sl_cas(&rw->lock, RW_LOCK_BIAS, 0) == RW_LOCK_BIAS; in arch_write_trylock()
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