52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
#ifndef __LINUX_SPINLOCK_TYPES_RT_H
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#define __LINUX_SPINLOCK_TYPES_RT_H
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#ifndef __LINUX_SPINLOCK_TYPES_H
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#error "Do not include directly. Include spinlock_types.h instead"
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#endif
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#include <linux/cache.h>
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/*
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* PREEMPT_RT: spinlocks - an RT mutex plus lock-break field:
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*/
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typedef struct spinlock {
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struct rt_mutex lock;
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unsigned int break_lock;
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#ifdef CONFIG_DEBUG_LOCK_ALLOC
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struct lockdep_map dep_map;
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#endif
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} spinlock_t;
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#ifdef CONFIG_DEBUG_RT_MUTEXES
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# define __RT_SPIN_INITIALIZER(name) \
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{ \
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.wait_lock = __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock), \
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.save_state = 1, \
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.file = __FILE__, \
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.line = __LINE__ , \
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}
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#else
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# define __RT_SPIN_INITIALIZER(name) \
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{ \
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.wait_lock = __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock), \
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.save_state = 1, \
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}
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#endif
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/*
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.wait_list = PLIST_HEAD_INIT_RAW((name).lock.wait_list, (name).lock.wait_lock)
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*/
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#define __SPIN_LOCK_UNLOCKED(name) \
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{ .lock = __RT_SPIN_INITIALIZER(name.lock), \
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SPIN_DEP_MAP_INIT(name) }
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#define __DEFINE_SPINLOCK(name) \
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spinlock_t name = __SPIN_LOCK_UNLOCKED(name)
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#define DEFINE_SPINLOCK(name) \
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spinlock_t name __cacheline_aligned_in_smp = __SPIN_LOCK_UNLOCKED(name)
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#endif
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