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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081#ifndef __LINUX_RWLOCK_TYPES_H#define __LINUX_RWLOCK_TYPES_H
#if !defined(__LINUX_SPINLOCK_TYPES_H)# error "Do not include directly, include spinlock_types.h"#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC# define RW_DEP_MAP_INIT(lockname) \ .dep_map = { \ .name = #lockname, \ .wait_type_inner = LD_WAIT_CONFIG, \ }#else# define RW_DEP_MAP_INIT(lockname)#endif
#ifndef CONFIG_PREEMPT_RT/* * generic rwlock type definitions and initializers * * portions Copyright 2005, Red Hat, Inc., Ingo Molnar * Released under the General Public License (GPL). */context_lock_struct(rwlock) { arch_rwlock_t raw_lock;#ifdef CONFIG_DEBUG_SPINLOCK unsigned int magic, owner_cpu; void *owner;#endif#ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map dep_map;#endif};typedef struct rwlock rwlock_t;
#define RWLOCK_MAGIC 0xdeaf1eed
#ifdef CONFIG_DEBUG_SPINLOCK#define __RW_LOCK_UNLOCKED(lockname) \ (rwlock_t) { .raw_lock = __ARCH_RW_LOCK_UNLOCKED, \ .magic = RWLOCK_MAGIC, \ .owner = SPINLOCK_OWNER_INIT, \ .owner_cpu = -1, \ RW_DEP_MAP_INIT(lockname) }#else#define __RW_LOCK_UNLOCKED(lockname) \ (rwlock_t) { .raw_lock = __ARCH_RW_LOCK_UNLOCKED, \ RW_DEP_MAP_INIT(lockname) }#endif
#define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x)
#else /* !CONFIG_PREEMPT_RT */
#include <linux/rwbase_rt.h>
context_lock_struct(rwlock) { struct rwbase_rt rwbase; atomic_t readers;#ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map dep_map;#endif};typedef struct rwlock rwlock_t;
#define __RWLOCK_RT_INITIALIZER(name) \{ \ .rwbase = __RWBASE_INITIALIZER(name), \ RW_DEP_MAP_INIT(name) \}
#define __RW_LOCK_UNLOCKED(name) __RWLOCK_RT_INITIALIZER(name)
#define DEFINE_RWLOCK(name) \ rwlock_t name = __RW_LOCK_UNLOCKED(name)
#endif /* CONFIG_PREEMPT_RT */
#endif /* __LINUX_RWLOCK_TYPES_H */