diff options
Diffstat (limited to 'arch/sh/include/asm/spinlock-cas.h')
| -rw-r--r-- | arch/sh/include/asm/spinlock-cas.h | 32 |
1 files changed, 2 insertions, 30 deletions
diff --git a/arch/sh/include/asm/spinlock-cas.h b/arch/sh/include/asm/spinlock-cas.h index c46e8cc7b515..3d49985ebf41 100644 --- a/arch/sh/include/asm/spinlock-cas.h +++ b/arch/sh/include/asm/spinlock-cas.h @@ -1,11 +1,8 @@ -/* +/* SPDX-License-Identifier: GPL-2.0 + * * include/asm-sh/spinlock-cas.h * * Copyright (C) 2015 SEI - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef __ASM_SH_SPINLOCK_CAS_H #define __ASM_SH_SPINLOCK_CAS_H @@ -27,12 +24,6 @@ static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new */ #define arch_spin_is_locked(x) ((x)->lock <= 0) -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) - -static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) -{ - smp_cond_load_acquire(&lock->lock, VAL > 0); -} static inline void arch_spin_lock(arch_spinlock_t *lock) { @@ -58,18 +49,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock) * read-locks. */ -/** - * read_can_lock - would read_trylock() succeed? - * @lock: the rwlock in question. - */ -#define arch_read_can_lock(x) ((x)->lock > 0) - -/** - * write_can_lock - would write_trylock() succeed? - * @lock: the rwlock in question. - */ -#define arch_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS) - static inline void arch_read_lock(arch_rwlock_t *rw) { unsigned old; @@ -107,11 +86,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw) return __sl_cas(&rw->lock, RW_LOCK_BIAS, 0) == RW_LOCK_BIAS; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - -#define arch_spin_relax(lock) cpu_relax() -#define arch_read_relax(lock) cpu_relax() -#define arch_write_relax(lock) cpu_relax() - #endif /* __ASM_SH_SPINLOCK_CAS_H */ |