Linux-libre 4.5-gnu

1 files changed, 0 insertions, 178 deletions

diff --git a/fs/aufs/rwsem.h b/fs/aufs/rwsem.h
deleted file mode 100644
index ef50c2ccb..000000000
--- a/fs/aufs/rwsem.h
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright (C) 2005-2016 Junjiro R. Okajima
- */
-
-/*
- * simple read-write semaphore wrappers
- */
-
-#ifndef __AUFS_RWSEM_H__
-#define __AUFS_RWSEM_H__
-
-#ifdef __KERNEL__
-
-#include "debug.h"
-
-struct au_rwsem {
-	struct rw_semaphore	rwsem;
-#ifdef CONFIG_AUFS_DEBUG
-	/* just for debugging, not almighty counter */
-	atomic_t		rcnt, wcnt;
-#endif
-};
-
-#ifdef CONFIG_AUFS_DEBUG
-#define AuDbgCntInit(rw) do { \
-	atomic_set(&(rw)->rcnt, 0); \
-	atomic_set(&(rw)->wcnt, 0); \
-	smp_mb(); /* atomic set */ \
-} while (0)
-
-#define AuDbgRcntInc(rw)	atomic_inc(&(rw)->rcnt)
-#define AuDbgRcntDec(rw)	WARN_ON(atomic_dec_return(&(rw)->rcnt) < 0)
-#define AuDbgWcntInc(rw)	atomic_inc(&(rw)->wcnt)
-#define AuDbgWcntDec(rw)	WARN_ON(atomic_dec_return(&(rw)->wcnt) < 0)
-#else
-#define AuDbgCntInit(rw)	do {} while (0)
-#define AuDbgRcntInc(rw)	do {} while (0)
-#define AuDbgRcntDec(rw)	do {} while (0)
-#define AuDbgWcntInc(rw)	do {} while (0)
-#define AuDbgWcntDec(rw)	do {} while (0)
-#endif /* CONFIG_AUFS_DEBUG */
-
-/* to debug easier, do not make them inlined functions */
-#define AuRwMustNoWaiters(rw)	AuDebugOn(!list_empty(&(rw)->rwsem.wait_list))
-/* rwsem_is_locked() is unusable */
-#define AuRwMustReadLock(rw)	AuDebugOn(atomic_read(&(rw)->rcnt) <= 0)
-#define AuRwMustWriteLock(rw)	AuDebugOn(atomic_read(&(rw)->wcnt) <= 0)
-#define AuRwMustAnyLock(rw)	AuDebugOn(atomic_read(&(rw)->rcnt) <= 0 \
-					&& atomic_read(&(rw)->wcnt) <= 0)
-#define AuRwDestroy(rw)		AuDebugOn(atomic_read(&(rw)->rcnt) \
-					|| atomic_read(&(rw)->wcnt))
-
-#define au_rw_class(rw, key)	lockdep_set_class(&(rw)->rwsem, key)
-
-static inline void au_rw_init(struct au_rwsem *rw)
-{
-	AuDbgCntInit(rw);
-	init_rwsem(&rw->rwsem);
-}
-
-static inline void au_rw_init_wlock(struct au_rwsem *rw)
-{
-	au_rw_init(rw);
-	down_write(&rw->rwsem);
-	AuDbgWcntInc(rw);
-}
-
-static inline void au_rw_init_wlock_nested(struct au_rwsem *rw,
-					   unsigned int lsc)
-{
-	au_rw_init(rw);
-	down_write_nested(&rw->rwsem, lsc);
-	AuDbgWcntInc(rw);
-}
-
-static inline void au_rw_read_lock(struct au_rwsem *rw)
-{
-	down_read(&rw->rwsem);
-	AuDbgRcntInc(rw);
-}
-
-static inline void au_rw_read_lock_nested(struct au_rwsem *rw, unsigned int lsc)
-{
-	down_read_nested(&rw->rwsem, lsc);
-	AuDbgRcntInc(rw);
-}
-
-static inline void au_rw_read_unlock(struct au_rwsem *rw)
-{
-	AuRwMustReadLock(rw);
-	AuDbgRcntDec(rw);
-	up_read(&rw->rwsem);
-}
-
-static inline void au_rw_dgrade_lock(struct au_rwsem *rw)
-{
-	AuRwMustWriteLock(rw);
-	AuDbgRcntInc(rw);
-	AuDbgWcntDec(rw);
-	downgrade_write(&rw->rwsem);
-}
-
-static inline void au_rw_write_lock(struct au_rwsem *rw)
-{
-	down_write(&rw->rwsem);
-	AuDbgWcntInc(rw);
-}
-
-static inline void au_rw_write_lock_nested(struct au_rwsem *rw,
-					   unsigned int lsc)
-{
-	down_write_nested(&rw->rwsem, lsc);
-	AuDbgWcntInc(rw);
-}
-
-static inline void au_rw_write_unlock(struct au_rwsem *rw)
-{
-	AuRwMustWriteLock(rw);
-	AuDbgWcntDec(rw);
-	up_write(&rw->rwsem);
-}
-
-/* why is not _nested version defined */
-static inline int au_rw_read_trylock(struct au_rwsem *rw)
-{
-	int ret;
-
-	ret = down_read_trylock(&rw->rwsem);
-	if (ret)
-		AuDbgRcntInc(rw);
-	return ret;
-}
-
-static inline int au_rw_write_trylock(struct au_rwsem *rw)
-{
-	int ret;
-
-	ret = down_write_trylock(&rw->rwsem);
-	if (ret)
-		AuDbgWcntInc(rw);
-	return ret;
-}
-
-#undef AuDbgCntInit
-#undef AuDbgRcntInc
-#undef AuDbgRcntDec
-#undef AuDbgWcntInc
-#undef AuDbgWcntDec
-
-#define AuSimpleLockRwsemFuncs(prefix, param, rwsem) \
-static inline void prefix##_read_lock(param) \
-{ au_rw_read_lock(rwsem); } \
-static inline void prefix##_write_lock(param) \
-{ au_rw_write_lock(rwsem); } \
-static inline int prefix##_read_trylock(param) \
-{ return au_rw_read_trylock(rwsem); } \
-static inline int prefix##_write_trylock(param) \
-{ return au_rw_write_trylock(rwsem); }
-/* why is not _nested version defined */
-/* static inline void prefix##_read_trylock_nested(param, lsc)
-{ au_rw_read_trylock_nested(rwsem, lsc)); }
-static inline void prefix##_write_trylock_nestd(param, lsc)
-{ au_rw_write_trylock_nested(rwsem, lsc); } */
-
-#define AuSimpleUnlockRwsemFuncs(prefix, param, rwsem) \
-static inline void prefix##_read_unlock(param) \
-{ au_rw_read_unlock(rwsem); } \
-static inline void prefix##_write_unlock(param) \
-{ au_rw_write_unlock(rwsem); } \
-static inline void prefix##_downgrade_lock(param) \
-{ au_rw_dgrade_lock(rwsem); }
-
-#define AuSimpleRwsemFuncs(prefix, param, rwsem) \
-	AuSimpleLockRwsemFuncs(prefix, param, rwsem) \
-	AuSimpleUnlockRwsemFuncs(prefix, param, rwsem)
-
-#endif /* __KERNEL__ */
-#endif /* __AUFS_RWSEM_H__ */