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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /include/linux/spinlock_api_up.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'include/linux/spinlock_api_up.h')
-rw-r--r-- | include/linux/spinlock_api_up.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/include/linux/spinlock_api_up.h b/include/linux/spinlock_api_up.h new file mode 100644 index 00000000..af1f4722 --- /dev/null +++ b/include/linux/spinlock_api_up.h @@ -0,0 +1,85 @@ +#ifndef __LINUX_SPINLOCK_API_UP_H +#define __LINUX_SPINLOCK_API_UP_H + +#ifndef __LINUX_SPINLOCK_H +# error "please don't include this file directly" +#endif + +/* + * include/linux/spinlock_api_up.h + * + * spinlock API implementation on UP-nondebug (inlined implementation) + * + * portions Copyright 2005, Red Hat, Inc., Ingo Molnar + * Released under the General Public License (GPL). + */ + +#define in_lock_functions(ADDR) 0 + +#define assert_raw_spin_locked(lock) do { (void)(lock); } while (0) + +/* + * In the UP-nondebug case there's no real locking going on, so the + * only thing we have to do is to keep the preempt counts and irq + * flags straight, to suppress compiler warnings of unused lock + * variables, and to add the proper checker annotations: + */ +#define __LOCK(lock) \ + do { preempt_disable(); __acquire(lock); (void)(lock); } while (0) + +#define __LOCK_BH(lock) \ + do { local_bh_disable(); __LOCK(lock); } while (0) + +#define __LOCK_IRQ(lock) \ + do { local_irq_disable(); __LOCK(lock); } while (0) + +#define __LOCK_IRQSAVE(lock, flags) \ + do { local_irq_save(flags); __LOCK(lock); } while (0) + +#define __UNLOCK(lock) \ + do { preempt_enable(); __release(lock); (void)(lock); } while (0) + +#define __UNLOCK_BH(lock) \ + do { preempt_enable_no_resched(); local_bh_enable(); \ + __release(lock); (void)(lock); } while (0) + +#define __UNLOCK_IRQ(lock) \ + do { local_irq_enable(); __UNLOCK(lock); } while (0) + +#define __UNLOCK_IRQRESTORE(lock, flags) \ + do { local_irq_restore(flags); __UNLOCK(lock); } while (0) + +#define _raw_spin_lock(lock) __LOCK(lock) +#define _raw_spin_lock_nested(lock, subclass) __LOCK(lock) +#define _raw_read_lock(lock) __LOCK(lock) +#define _raw_write_lock(lock) __LOCK(lock) +#define _raw_spin_lock_bh(lock) __LOCK_BH(lock) +#define _raw_read_lock_bh(lock) __LOCK_BH(lock) +#define _raw_write_lock_bh(lock) __LOCK_BH(lock) +#define _raw_spin_lock_irq(lock) __LOCK_IRQ(lock) +#define _raw_read_lock_irq(lock) __LOCK_IRQ(lock) +#define _raw_write_lock_irq(lock) __LOCK_IRQ(lock) +#define _raw_spin_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags) +#define _raw_read_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags) +#define _raw_write_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags) +#define _raw_spin_trylock(lock) ({ __LOCK(lock); 1; }) +#define _raw_read_trylock(lock) ({ __LOCK(lock); 1; }) +#define _raw_write_trylock(lock) ({ __LOCK(lock); 1; }) +#define _raw_spin_trylock_bh(lock) ({ __LOCK_BH(lock); 1; }) +#define _raw_spin_unlock(lock) __UNLOCK(lock) +#define _raw_read_unlock(lock) __UNLOCK(lock) +#define _raw_write_unlock(lock) __UNLOCK(lock) +#define _raw_spin_unlock_bh(lock) __UNLOCK_BH(lock) +#define _raw_write_unlock_bh(lock) __UNLOCK_BH(lock) +#define _raw_read_unlock_bh(lock) __UNLOCK_BH(lock) +#define _raw_spin_unlock_irq(lock) __UNLOCK_IRQ(lock) +#define _raw_read_unlock_irq(lock) __UNLOCK_IRQ(lock) +#define _raw_write_unlock_irq(lock) __UNLOCK_IRQ(lock) +#define _raw_spin_unlock_irqrestore(lock, flags) \ + __UNLOCK_IRQRESTORE(lock, flags) +#define _raw_read_unlock_irqrestore(lock, flags) \ + __UNLOCK_IRQRESTORE(lock, flags) +#define _raw_write_unlock_irqrestore(lock, flags) \ + __UNLOCK_IRQRESTORE(lock, flags) + +#endif /* __LINUX_SPINLOCK_API_UP_H */ |