-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#error This include is only for kernel use.
#endif
-#include <linux/smp_lock.h>
#include <linux/mutex.h>
/*
* - spin_unlock(x)
* - spin_unlock_bh(x)
* - spin_trylock(x)
- * - spin_is_locked(x)
+ * - assert_spin_locked(x)
*
* - spin_lock_irq(x)
* - spin_lock_irqsave(x, f)
* - read_lock_irqsave(lock, f)
* - write_lock_irqsave(lock, f)
* - write_unlock_irqrestore(lock, f)
- *
- * - SPIN_LOCK_UNLOCKED
*/
/*
* spinlock "implementation"
*/
-typedef spinlock_t cfs_spinlock_t;
-
-#define cfs_spin_lock_init(lock) spin_lock_init(lock)
-#define cfs_spin_lock(lock) spin_lock(lock)
-#define cfs_spin_lock_bh(lock) spin_lock_bh(lock)
-#define cfs_spin_lock_bh_init(lock) spin_lock_bh_init(lock)
-#define cfs_spin_unlock(lock) spin_unlock(lock)
-#define cfs_spin_unlock_bh(lock) spin_unlock_bh(lock)
-#define cfs_spin_trylock(lock) spin_trylock(lock)
-#define cfs_spin_is_locked(lock) spin_is_locked(lock)
-#define cfs_spin_lock_irq(lock) spin_lock_irq(lock)
-#define cfs_spin_unlock_irq(lock) spin_unlock_irq(lock)
-#define cfs_read_lock_irqsave(lock, f) read_lock_irqsave(lock, f)
-#define cfs_write_lock_irqsave(lock, f) write_lock_irqsave(lock, f)
-#define cfs_write_unlock_irqrestore(lock, f) write_unlock_irqrestore(lock, f)
-#define cfs_spin_lock_irqsave(lock, f) spin_lock_irqsave(lock, f)
-#define cfs_spin_unlock_irqrestore(lock, f) spin_unlock_irqrestore(lock, f)
-#define CFS_SPIN_LOCK_UNLOCKED SPIN_LOCK_UNLOCKED
/*
* rw_semaphore "implementation" (use Linux kernel's primitives)
* - down_write(x)
* - up_write(x)
*/
-typedef struct rw_semaphore cfs_rw_semaphore_t;
-#define cfs_init_rwsem(s) init_rwsem(s)
-#define cfs_down_read(s) down_read(s)
-#define cfs_down_read_trylock(s) down_read_trylock(s)
-#define cfs_up_read(s) up_read(s)
-#define cfs_down_write(s) down_write(s)
-#define cfs_down_write_trylock(s) down_write_trylock(s)
-#define cfs_up_write(s) up_write(s)
-#define cfs_fini_rwsem(s) do {} while(0)
+#define fini_rwsem(s) do {} while (0)
-#define CFS_DECLARE_RWSEM(name) DECLARE_RWSEM(name)
/*
* rwlock_t "implementation" (use Linux kernel's primitives)
*
* - RW_LOCK_UNLOCKED
*/
-typedef rwlock_t cfs_rwlock_t;
-#define cfs_rwlock_init(lock) rwlock_init(lock)
-#define cfs_read_lock(lock) read_lock(lock)
-#define cfs_read_unlock(lock) read_unlock(lock)
-#define cfs_read_unlock_irqrestore(lock,flags) \
- read_unlock_irqrestore(lock, flags)
-#define cfs_write_lock(lock) write_lock(lock)
-#define cfs_write_unlock(lock) write_unlock(lock)
-#define cfs_write_lock_bh(lock) write_lock_bh(lock)
-#define cfs_write_unlock_bh(lock) write_unlock_bh(lock)
-#define CFS_RW_LOCK_UNLOCKED RW_LOCK_UNLOCKED
+#ifndef DEFINE_RWLOCK
+#define DEFINE_RWLOCK(lock) rwlock_t lock = __RW_LOCK_UNLOCKED(lock)
+#endif
/*
* completion "implementation" (use Linux kernel's primitives)
* - wait_for_completion_interruptible(c)
* - fini_completion(c)
*/
-typedef struct completion cfs_completion_t;
-
-#define CFS_DECLARE_COMPLETION(work) DECLARE_COMPLETION(work)
-#define CFS_INIT_COMPLETION(c) INIT_COMPLETION(c)
-#define CFS_COMPLETION_INITIALIZER(work) COMPLETION_INITIALIZER(work)
-#define cfs_init_completion(c) init_completion(c)
-#define cfs_complete(c) complete(c)
-#define cfs_wait_for_completion(c) wait_for_completion(c)
-#define cfs_wait_for_completion_interruptible(c) \
- wait_for_completion_interruptible(c)
-#define cfs_complete_and_exit(c, code) complete_and_exit(c, code)
-#define cfs_fini_completion(c) do { } while (0)
+#define fini_completion(c) do { } while (0)
/*
* semaphore "implementation" (use Linux kernel's primitives)
* - down_interruptible(sem)
* - down_trylock(sem)
*/
-typedef struct semaphore cfs_semaphore_t;
-
-#ifdef DEFINE_SEMAPHORE
-#define CFS_DEFINE_SEMAPHORE(name) DEFINE_SEMAPHORE(name)
-#else
-#define CFS_DEFINE_SEMAPHORE(name) DECLARE_MUTEX(name)
-#endif
-
-#define cfs_sema_init(sem, val) sema_init(sem, val)
-#define cfs_up(x) up(x)
-#define cfs_down(x) down(x)
-#define cfs_down_interruptible(x) down_interruptible(x)
-#define cfs_down_trylock(x) down_trylock(x)
/*
* mutex "implementation" (use Linux kernel's primitives)
* - mutex_is_locked(x)
* - mutex_destroy(x)
*/
-typedef struct mutex cfs_mutex_t;
-
-#define CFS_DEFINE_MUTEX(name) DEFINE_MUTEX(name)
-
-#define cfs_mutex_init(x) mutex_init(x)
-#define cfs_mutex_lock(x) mutex_lock(x)
-#define cfs_mutex_unlock(x) mutex_unlock(x)
-#define cfs_mutex_lock_interruptible(x) mutex_lock_interruptible(x)
-#define cfs_mutex_trylock(x) mutex_trylock(x)
-#define cfs_mutex_is_locked(x) mutex_is_locked(x)
-#define cfs_mutex_destroy(x) mutex_destroy(x)
-
-/*
- * Kernel locking primitives
- *
- * - lock_kernel
- * - unlock_kernel
- */
-#define cfs_lock_kernel() lock_kernel()
-#define cfs_unlock_kernel() unlock_kernel()
#ifndef lockdep_set_class
*
**************************************************************************/
-typedef struct cfs_lock_class_key {
- ;
-} cfs_lock_class_key_t;
+struct lock_class_key {
+ ;
+};
-#define cfs_lockdep_set_class(lock, key) \
- do { (void)sizeof (lock);(void)sizeof (key); } while (0)
-/* This has to be a macro, so that `subclass' can be undefined in kernels that
- * do not support lockdep. */
+#define lockdep_set_class(lock, key) \
+ do { (void)sizeof(lock); (void)sizeof(key); } while (0)
+/* This has to be a macro, so that `subclass' can be undefined in kernels
+ * that do not support lockdep. */
-static inline void cfs_lockdep_off(void)
+static inline void lockdep_off(void)
{
}
-static inline void cfs_lockdep_on(void)
+static inline void lockdep_on(void)
{
}
#else
-typedef struct lock_class_key cfs_lock_class_key_t;
-#define cfs_lockdep_set_class(lock, key) lockdep_set_class(lock, key)
-#define cfs_lockdep_off() lockdep_off()
-#define cfs_lockdep_on() lockdep_on()
#endif /* lockdep_set_class */
#ifndef CONFIG_DEBUG_LOCK_ALLOC
#ifndef mutex_lock_nested
-#define cfs_mutex_lock_nested(mutex, subclass) mutex_lock(mutex)
-#else
-#define cfs_mutex_lock_nested(mutex, subclass) \
- mutex_lock_nested(mutex, subclass)
+#define mutex_lock_nested(mutex, subclass) mutex_lock(mutex)
#endif
#ifndef spin_lock_nested
-#define cfs_spin_lock_nested(lock, subclass) spin_lock(lock)
-#else
-#define cfs_spin_lock_nested(lock, subclass) spin_lock_nested(lock, subclass)
+#define spin_lock_nested(lock, subclass) spin_lock(lock)
#endif
#ifndef down_read_nested
-#define cfs_down_read_nested(lock, subclass) down_read(lock)
-#else
-#define cfs_down_read_nested(lock, subclass) down_read_nested(lock, subclass)
+#define down_read_nested(lock, subclass) down_read(lock)
#endif
#ifndef down_write_nested
-#define cfs_down_write_nested(lock, subclass) down_write(lock)
-#else
-#define cfs_down_write_nested(lock, subclass) down_write_nested(lock, subclass)
+#define down_write_nested(lock, subclass) down_write(lock)
#endif
-#else /* CONFIG_DEBUG_LOCK_ALLOC is defined */
-#define cfs_mutex_lock_nested(mutex, subclass) \
- mutex_lock_nested(mutex, subclass)
-#define cfs_spin_lock_nested(lock, subclass) spin_lock_nested(lock, subclass)
-#define cfs_down_read_nested(lock, subclass) down_read_nested(lock, subclass)
-#define cfs_down_write_nested(lock, subclass) down_write_nested(lock, subclass)
#endif /* CONFIG_DEBUG_LOCK_ALLOC */
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