/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_GENERIC_QRWLOCK_TYPES_H
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#define __ASM_GENERIC_QRWLOCK_TYPES_H
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#include <linux/types.h>
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#include <asm/byteorder.h>
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#include <asm/spinlock_types.h>
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/*
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* The queue read/write lock data structure
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*/
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typedef struct qrwlock {
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union {
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atomic_t cnts;
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struct {
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#ifdef __LITTLE_ENDIAN
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u8 wlocked; /* Locked for write? */
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u8 __lstate[3];
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#else
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u8 __lstate[3];
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u8 wlocked; /* Locked for write? */
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#endif
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};
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};
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arch_spinlock_t wait_lock;
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} arch_rwlock_t;
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#define __ARCH_RW_LOCK_UNLOCKED { \
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{ .cnts = ATOMIC_INIT(0), }, \
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.wait_lock = __ARCH_SPIN_LOCK_UNLOCKED, \
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}
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#endif /* __ASM_GENERIC_QRWLOCK_TYPES_H */
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