kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/include/linux/spinlock_types.h
..
..
@@ -9,15 +9,93 @@
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  * Released under the General Public License (GPL).
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  */
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-#include <linux/spinlock_types_raw.h>
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-
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-#ifndef CONFIG_PREEMPT_RT
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-# include <linux/spinlock_types_nort.h>
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-# include <linux/rwlock_types.h>
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+#if defined(CONFIG_SMP)
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+# include <asm/spinlock_types.h>
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 #else
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-# include <linux/rtmutex.h>
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-# include <linux/spinlock_types_rt.h>
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-# include <linux/rwlock_types_rt.h>
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+# include <linux/spinlock_types_up.h>
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 #endif
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+#include <linux/lockdep_types.h>
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+
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+typedef struct raw_spinlock {
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+	arch_spinlock_t raw_lock;
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+#ifdef CONFIG_DEBUG_SPINLOCK
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+	unsigned int magic, owner_cpu;
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+	void *owner;
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+#endif
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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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+} raw_spinlock_t;
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+
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+#define SPINLOCK_MAGIC		0xdead4ead
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+
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+#define SPINLOCK_OWNER_INIT	((void *)-1L)
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+
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+#ifdef CONFIG_DEBUG_LOCK_ALLOC
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+# define RAW_SPIN_DEP_MAP_INIT(lockname)		\
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+	.dep_map = {					\
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+		.name = #lockname,			\
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+		.wait_type_inner = LD_WAIT_SPIN,	\
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+	}
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+# define SPIN_DEP_MAP_INIT(lockname)			\
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+	.dep_map = {					\
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+		.name = #lockname,			\
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+		.wait_type_inner = LD_WAIT_CONFIG,	\
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+	}
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+#else
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+# define RAW_SPIN_DEP_MAP_INIT(lockname)
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+# define SPIN_DEP_MAP_INIT(lockname)
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+#endif
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+
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+#ifdef CONFIG_DEBUG_SPINLOCK
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+# define SPIN_DEBUG_INIT(lockname)		\
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+	.magic = SPINLOCK_MAGIC,		\
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+	.owner_cpu = -1,			\
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+	.owner = SPINLOCK_OWNER_INIT,
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+#else
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+# define SPIN_DEBUG_INIT(lockname)
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+#endif
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+
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+#define __RAW_SPIN_LOCK_INITIALIZER(lockname)	\
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+	{					\
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+	.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,	\
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+	SPIN_DEBUG_INIT(lockname)		\
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+	RAW_SPIN_DEP_MAP_INIT(lockname) }
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+
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+#define __RAW_SPIN_LOCK_UNLOCKED(lockname)	\
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+	(raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname)
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+
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+#define DEFINE_RAW_SPINLOCK(x)	raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x)
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+
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+typedef struct spinlock {
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+	union {
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+		struct raw_spinlock rlock;
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+
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+#ifdef CONFIG_DEBUG_LOCK_ALLOC
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+# define LOCK_PADSIZE (offsetof(struct raw_spinlock, dep_map))
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+		struct {
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+			u8 __padding[LOCK_PADSIZE];
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+			struct lockdep_map dep_map;
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+		};
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+#endif
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+	};
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+} spinlock_t;
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+
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+#define ___SPIN_LOCK_INITIALIZER(lockname)	\
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+	{					\
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+	.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,	\
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+	SPIN_DEBUG_INIT(lockname)		\
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+	SPIN_DEP_MAP_INIT(lockname) }
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+
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+#define __SPIN_LOCK_INITIALIZER(lockname) \
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+	{ { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } }
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+
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+#define __SPIN_LOCK_UNLOCKED(lockname) \
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+	(spinlock_t) __SPIN_LOCK_INITIALIZER(lockname)
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+
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+#define DEFINE_SPINLOCK(x)	spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
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+
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+#include <linux/rwlock_types.h>
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+
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 #endif /* __LINUX_SPINLOCK_TYPES_H */