rw_semaphores: Add rw_anon_semaphores

Most of the rw_semaphores have struct owner semantics. i_alloc_sem and
xfs mr_lock are used as both semaphores and completions. That makes
it hard to convert for preempt-rt. Add an rw_anon_semaphores type
which is not converted on -rt.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

8 files changed, 78 insertions, 75 deletions

diff --git a/arch/alpha/include/asm/rwsem.h b/arch/alpha/include/asm/rwsem.h
index a83bbea62c67..0f880ca8e036 100644
--- a/arch/alpha/include/asm/rwsem.h
+++ b/arch/alpha/include/asm/rwsem.h
@@ -21,7 +21,7 @@
 #define RWSEM_ACTIVE_READ_BIAS		RWSEM_ACTIVE_BIAS
 #define RWSEM_ACTIVE_WRITE_BIAS		(RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
 
-static inline void __down_read(struct rw_semaphore *sem)
+static inline void __down_read(struct rw_anon_semaphore *sem)
 {
 	long oldcount;
 #ifndef	CONFIG_SMP
@@ -48,7 +48,7 @@ static inline void __down_read(struct rw_semaphore *sem)
 /*
  * trylock for reading -- returns 1 if successful, 0 if contention
  */
-static inline int __down_read_trylock(struct rw_semaphore *sem)
+static inline int __down_read_trylock(struct rw_anon_semaphore *sem)
 {
 	long old, new, res;
 
@@ -63,7 +63,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 	return res >= 0 ? 1 : 0;
 }
 
-static inline void __down_write(struct rw_semaphore *sem)
+static inline void __down_write(struct rw_anon_semaphore *sem)
 {
 	long oldcount;
 #ifndef	CONFIG_SMP
@@ -90,7 +90,7 @@ static inline void __down_write(struct rw_semaphore *sem)
 /*
  * trylock for writing -- returns 1 if successful, 0 if contention
  */
-static inline int __down_write_trylock(struct rw_semaphore *sem)
+static inline int __down_write_trylock(struct rw_anon_semaphore *sem)
 {
 	long ret = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE,
 			   RWSEM_ACTIVE_WRITE_BIAS);
@@ -99,7 +99,7 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 	return 0;
 }
 
-static inline void __up_read(struct rw_semaphore *sem)
+static inline void __up_read(struct rw_anon_semaphore *sem)
 {
 	long oldcount;
 #ifndef	CONFIG_SMP
@@ -124,7 +124,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 			rwsem_wake(sem);
 }
 
-static inline void __up_write(struct rw_semaphore *sem)
+static inline void __up_write(struct rw_anon_semaphore *sem)
 {
 	long count;
 #ifndef	CONFIG_SMP
@@ -153,7 +153,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 /*
  * downgrade write lock to read lock
  */
-static inline void __downgrade_write(struct rw_semaphore *sem)
+static inline void __downgrade_write(struct rw_anon_semaphore *sem)
 {
 	long oldcount;
 #ifndef	CONFIG_SMP
@@ -177,7 +177,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 		rwsem_downgrade_wake(sem);
 }
 
-static inline void rwsem_atomic_add(long val, struct rw_semaphore *sem)
+static inline void rwsem_atomic_add(long val, struct rw_anon_semaphore *sem)
 {
 #ifndef	CONFIG_SMP
 	sem->count += val;
@@ -196,7 +196,7 @@ static inline void rwsem_atomic_add(long val, struct rw_semaphore *sem)
 #endif
 }
 
-static inline long rwsem_atomic_update(long val, struct rw_semaphore *sem)
+static inline long rwsem_atomic_update(long val, struct rw_anon_semaphore *sem)
 {
 #ifndef	CONFIG_SMP
 	sem->count += val;
diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h
index 3027e7516d85..885fddb4db49 100644
--- a/arch/ia64/include/asm/rwsem.h
+++ b/arch/ia64/include/asm/rwsem.h
@@ -38,7 +38,7 @@
  * lock for reading
  */
 static inline void
-__down_read (struct rw_semaphore *sem)
+__down_read (struct rw_anon_semaphore *sem)
 {
 	long result = ia64_fetchadd8_acq((unsigned long *)&sem->count, 1);
 
@@ -50,7 +50,7 @@ __down_read (struct rw_semaphore *sem)
  * lock for writing
  */
 static inline void
-__down_write (struct rw_semaphore *sem)
+__down_write (struct rw_anon_semaphore *sem)
 {
 	long old, new;
 
@@ -67,7 +67,7 @@ __down_write (struct rw_semaphore *sem)
  * unlock after reading
  */
 static inline void
-__up_read (struct rw_semaphore *sem)
+__up_read (struct rw_anon_semaphore *sem)
 {
 	long result = ia64_fetchadd8_rel((unsigned long *)&sem->count, -1);
 
@@ -79,7 +79,7 @@ __up_read (struct rw_semaphore *sem)
  * unlock after writing
  */
 static inline void
-__up_write (struct rw_semaphore *sem)
+__up_write (struct rw_anon_semaphore *sem)
 {
 	long old, new;
 
@@ -96,7 +96,7 @@ __up_write (struct rw_semaphore *sem)
  * trylock for reading -- returns 1 if successful, 0 if contention
  */
 static inline int
-__down_read_trylock (struct rw_semaphore *sem)
+__down_read_trylock (struct rw_anon_semaphore *sem)
 {
 	long tmp;
 	while ((tmp = sem->count) >= 0) {
@@ -111,7 +111,7 @@ __down_read_trylock (struct rw_semaphore *sem)
  * trylock for writing -- returns 1 if successful, 0 if contention
  */
 static inline int
-__down_write_trylock (struct rw_semaphore *sem)
+__down_write_trylock (struct rw_anon_semaphore *sem)
 {
 	long tmp = cmpxchg_acq(&sem->count, RWSEM_UNLOCKED_VALUE,
 			      RWSEM_ACTIVE_WRITE_BIAS);
@@ -122,7 +122,7 @@ __down_write_trylock (struct rw_semaphore *sem)
  * downgrade write lock to read lock
  */
 static inline void
-__downgrade_write (struct rw_semaphore *sem)
+__downgrade_write (struct rw_anon_semaphore *sem)
 {
 	long old, new;
 
diff --git a/arch/powerpc/include/asm/rwsem.h b/arch/powerpc/include/asm/rwsem.h
index bb1e2cdeb9bf..06b28a7cae29 100644
--- a/arch/powerpc/include/asm/rwsem.h
+++ b/arch/powerpc/include/asm/rwsem.h
@@ -31,13 +31,13 @@
 /*
  * lock for reading
  */
-static inline void __down_read(struct rw_semaphore *sem)
+static inline void __down_read(struct rw_anon_semaphore *sem)
 {
 	if (unlikely(atomic_long_inc_return((atomic_long_t *)&sem->count) <= 0))
 		rwsem_down_read_failed(sem);
 }
 
-static inline int __down_read_trylock(struct rw_semaphore *sem)
+static inline int __down_read_trylock(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -53,7 +53,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 /*
  * lock for writing
  */
-static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+static inline void __down_write_nested(struct rw_anon_semaphore *sem, int subclass)
 {
 	long tmp;
 
@@ -63,12 +63,12 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 		rwsem_down_write_failed(sem);
 }
 
-static inline void __down_write(struct rw_semaphore *sem)
+static inline void __down_write(struct rw_anon_semaphore *sem)
 {
 	__down_write_nested(sem, 0);
 }
 
-static inline int __down_write_trylock(struct rw_semaphore *sem)
+static inline int __down_write_trylock(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -80,7 +80,7 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 /*
  * unlock after reading
  */
-static inline void __up_read(struct rw_semaphore *sem)
+static inline void __up_read(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -92,7 +92,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 /*
  * unlock after writing
  */
-static inline void __up_write(struct rw_semaphore *sem)
+static inline void __up_write(struct rw_anon_semaphore *sem)
 {
 	if (unlikely(atomic_long_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
 				 (atomic_long_t *)&sem->count) < 0))
@@ -102,7 +102,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 /*
  * implement atomic add functionality
  */
-static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+static inline void rwsem_atomic_add(long delta, struct rw_anon_semaphore *sem)
 {
 	atomic_long_add(delta, (atomic_long_t *)&sem->count);
 }
@@ -110,7 +110,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
 /*
  * downgrade write lock to read lock
  */
-static inline void __downgrade_write(struct rw_semaphore *sem)
+static inline void __downgrade_write(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -123,7 +123,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 /*
  * implement exchange and add functionality
  */
-static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
+static inline long rwsem_atomic_update(long delta, struct rw_anon_semaphore *sem)
 {
 	return atomic_long_add_return(delta, (atomic_long_t *)&sem->count);
 }
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
index d0eb4653cebd..059b0d205a8e 100644
--- a/arch/s390/include/asm/rwsem.h
+++ b/arch/s390/include/asm/rwsem.h
@@ -60,7 +60,7 @@
 /*
  * lock for reading
  */
-static inline void __down_read(struct rw_semaphore *sem)
+static inline void __down_read(struct rw_anon_semaphore *sem)
 {
 	signed long old, new;
 
@@ -88,7 +88,7 @@ static inline void __down_read(struct rw_semaphore *sem)
 /*
  * trylock for reading -- returns 1 if successful, 0 if contention
  */
-static inline int __down_read_trylock(struct rw_semaphore *sem)
+static inline int __down_read_trylock(struct rw_anon_semaphore *sem)
 {
 	signed long old, new;
 
@@ -119,7 +119,8 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 /*
  * lock for writing
  */
-static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+static inline void
+__down_write_nested(struct rw_anon_semaphore *sem, int subclass)
 {
 	signed long old, new, tmp;
 
@@ -145,7 +146,7 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 		rwsem_down_write_failed(sem);
 }
 
-static inline void __down_write(struct rw_semaphore *sem)
+static inline void __down_write(struct rw_anon_semaphore *sem)
 {
 	__down_write_nested(sem, 0);
 }
@@ -153,7 +154,7 @@ static inline void __down_write(struct rw_semaphore *sem)
 /*
  * trylock for writing -- returns 1 if successful, 0 if contention
  */
-static inline int __down_write_trylock(struct rw_semaphore *sem)
+static inline int __down_write_trylock(struct rw_anon_semaphore *sem)
 {
 	signed long old;
 
@@ -181,7 +182,7 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 /*
  * unlock after reading
  */
-static inline void __up_read(struct rw_semaphore *sem)
+static inline void __up_read(struct rw_anon_semaphore *sem)
 {
 	signed long old, new;
 
@@ -210,7 +211,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 /*
  * unlock after writing
  */
-static inline void __up_write(struct rw_semaphore *sem)
+static inline void __up_write(struct rw_anon_semaphore *sem)
 {
 	signed long old, new, tmp;
 
@@ -240,7 +241,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 /*
  * downgrade write lock to read lock
  */
-static inline void __downgrade_write(struct rw_semaphore *sem)
+static inline void __downgrade_write(struct rw_anon_semaphore *sem)
 {
 	signed long old, new, tmp;
 
@@ -269,7 +270,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 /*
  * implement atomic add functionality
  */
-static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+static inline void rwsem_atomic_add(long delta, struct rw_anon_semaphore *sem)
 {
 	signed long old, new;
 
@@ -295,7 +296,8 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
 /*
  * implement exchange and add functionality
  */
-static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
+static inline long
+rwsem_atomic_update(long delta, struct rw_anon_semaphore *sem)
 {
 	signed long old, new;
 
diff --git a/arch/sh/include/asm/rwsem.h b/arch/sh/include/asm/rwsem.h
index edab57265293..3085cdb75e44 100644
--- a/arch/sh/include/asm/rwsem.h
+++ b/arch/sh/include/asm/rwsem.h
@@ -22,7 +22,7 @@
 /*
  * lock for reading
  */
-static inline void __down_read(struct rw_semaphore *sem)
+static inline void __down_read(struct rw_anon_semaphore *sem)
 {
 	if (atomic_inc_return((atomic_t *)(&sem->count)) > 0)
 		smp_wmb();
@@ -30,7 +30,7 @@ static inline void __down_read(struct rw_semaphore *sem)
 		rwsem_down_read_failed(sem);
 }
 
-static inline int __down_read_trylock(struct rw_semaphore *sem)
+static inline int __down_read_trylock(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -47,7 +47,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 /*
  * lock for writing
  */
-static inline void __down_write(struct rw_semaphore *sem)
+static inline void __down_write(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -59,7 +59,7 @@ static inline void __down_write(struct rw_semaphore *sem)
 		rwsem_down_write_failed(sem);
 }
 
-static inline int __down_write_trylock(struct rw_semaphore *sem)
+static inline int __down_write_trylock(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -72,7 +72,7 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 /*
  * unlock after reading
  */
-static inline void __up_read(struct rw_semaphore *sem)
+static inline void __up_read(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -85,7 +85,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 /*
  * unlock after writing
  */
-static inline void __up_write(struct rw_semaphore *sem)
+static inline void __up_write(struct rw_anon_semaphore *sem)
 {
 	smp_wmb();
 	if (atomic_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
@@ -96,7 +96,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 /*
  * implement atomic add functionality
  */
-static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
+static inline void rwsem_atomic_add(int delta, struct rw_anon_semaphore *sem)
 {
 	atomic_add(delta, (atomic_t *)(&sem->count));
 }
@@ -104,7 +104,7 @@ static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
 /*
  * downgrade write lock to read lock
  */
-static inline void __downgrade_write(struct rw_semaphore *sem)
+static inline void __downgrade_write(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -114,7 +114,8 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 		rwsem_downgrade_wake(sem);
 }
 
-static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+static inline void
+ __down_write_nested(struct rw_anon_semaphore *sem, int subclass)
 {
 	__down_write(sem);
 }
@@ -122,7 +123,7 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 /*
  * implement exchange and add functionality
  */
-static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
+static inline int rwsem_atomic_update(int delta, struct rw_anon_semaphore *sem)
 {
 	smp_mb();
 	return atomic_add_return(delta, (atomic_t *)(&sem->count));
diff --git a/arch/sparc/include/asm/rwsem.h b/arch/sparc/include/asm/rwsem.h
index 069bf4d663a1..235fa891396e 100644
--- a/arch/sparc/include/asm/rwsem.h
+++ b/arch/sparc/include/asm/rwsem.h
@@ -23,13 +23,13 @@
 /*
  * lock for reading
  */
-static inline void __down_read(struct rw_semaphore *sem)
+static inline void __down_read(struct rw_anon_semaphore *sem)
 {
 	if (unlikely(atomic64_inc_return((atomic64_t *)(&sem->count)) <= 0L))
 		rwsem_down_read_failed(sem);
 }
 
-static inline int __down_read_trylock(struct rw_semaphore *sem)
+static inline int __down_read_trylock(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -45,7 +45,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 /*
  * lock for writing
  */
-static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+static inline void __down_write_nested(struct rw_anon_semaphore *sem, int subclass)
 {
 	long tmp;
 
@@ -55,12 +55,12 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 		rwsem_down_write_failed(sem);
 }
 
-static inline void __down_write(struct rw_semaphore *sem)
+static inline void __down_write(struct rw_anon_semaphore *sem)
 {
 	__down_write_nested(sem, 0);
 }
 
-static inline int __down_write_trylock(struct rw_semaphore *sem)
+static inline int __down_write_trylock(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -72,7 +72,7 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 /*
  * unlock after reading
  */
-static inline void __up_read(struct rw_semaphore *sem)
+static inline void __up_read(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -84,7 +84,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 /*
  * unlock after writing
  */
-static inline void __up_write(struct rw_semaphore *sem)
+static inline void __up_write(struct rw_anon_semaphore *sem)
 {
 	if (unlikely(atomic64_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
 					 (atomic64_t *)(&sem->count)) < 0L))
@@ -94,7 +94,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 /*
  * implement atomic add functionality
  */
-static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+static inline void rwsem_atomic_add(long delta, struct rw_anon_semaphore *sem)
 {
 	atomic64_add(delta, (atomic64_t *)(&sem->count));
 }
@@ -102,7 +102,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
 /*
  * downgrade write lock to read lock
  */
-static inline void __downgrade_write(struct rw_semaphore *sem)
+static inline void __downgrade_write(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 
@@ -114,7 +114,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 /*
  * implement exchange and add functionality
  */
-static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
+static inline long rwsem_atomic_update(long delta, struct rw_anon_semaphore *sem)
 {
 	return atomic64_add_return(delta, (atomic64_t *)(&sem->count));
 }
diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
index df4cd32b4cc6..6fc303a1176e 100644
--- a/arch/x86/include/asm/rwsem.h
+++ b/arch/x86/include/asm/rwsem.h
@@ -60,7 +60,7 @@
 /*
  * lock for reading
  */
-static inline void __down_read(struct rw_semaphore *sem)
+static inline void __down_read(struct rw_anon_semaphore *sem)
 {
 	asm volatile("# beginning down_read\n\t"
 		     LOCK_PREFIX _ASM_INC "(%1)\n\t"
@@ -77,7 +77,7 @@ static inline void __down_read(struct rw_semaphore *sem)
 /*
  * trylock for reading -- returns 1 if successful, 0 if contention
  */
-static inline int __down_read_trylock(struct rw_semaphore *sem)
+static inline int __down_read_trylock(struct rw_anon_semaphore *sem)
 {
 	long result, tmp;
 	asm volatile("# beginning __down_read_trylock\n\t"
@@ -99,7 +99,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 /*
  * lock for writing
  */
-static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+static inline void __down_write_nested(struct rw_anon_semaphore *sem, int subclass)
 {
 	long tmp;
 	asm volatile("# beginning down_write\n\t"
@@ -116,7 +116,7 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 		     : "memory", "cc");
 }
 
-static inline void __down_write(struct rw_semaphore *sem)
+static inline void __down_write(struct rw_anon_semaphore *sem)
 {
 	__down_write_nested(sem, 0);
 }
@@ -124,7 +124,7 @@ static inline void __down_write(struct rw_semaphore *sem)
 /*
  * trylock for writing -- returns 1 if successful, 0 if contention
  */
-static inline int __down_write_trylock(struct rw_semaphore *sem)
+static inline int __down_write_trylock(struct rw_anon_semaphore *sem)
 {
 	long ret = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE,
 			   RWSEM_ACTIVE_WRITE_BIAS);
@@ -136,7 +136,7 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 /*
  * unlock after reading
  */
-static inline void __up_read(struct rw_semaphore *sem)
+static inline void __up_read(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 	asm volatile("# beginning __up_read\n\t"
@@ -154,7 +154,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 /*
  * unlock after writing
  */
-static inline void __up_write(struct rw_semaphore *sem)
+static inline void __up_write(struct rw_anon_semaphore *sem)
 {
 	long tmp;
 	asm volatile("# beginning __up_write\n\t"
@@ -172,7 +172,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 /*
  * downgrade write lock to read lock
  */
-static inline void __downgrade_write(struct rw_semaphore *sem)
+static inline void __downgrade_write(struct rw_anon_semaphore *sem)
 {
 	asm volatile("# beginning __downgrade_write\n\t"
 		     LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
@@ -192,7 +192,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 /*
  * implement atomic add functionality
  */
-static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+static inline void rwsem_atomic_add(long delta, struct rw_anon_semaphore *sem)
 {
 	asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
 		     : "+m" (sem->count)
@@ -202,7 +202,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
 /*
  * implement exchange and add functionality
  */
-static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
+static inline long rwsem_atomic_update(long delta, struct rw_anon_semaphore *sem)
 {
 	long tmp = delta;
 
diff --git a/arch/xtensa/include/asm/rwsem.h b/arch/xtensa/include/asm/rwsem.h
index 249619e7e7f2..ea7ee2171069 100644
--- a/arch/xtensa/include/asm/rwsem.h
+++ b/arch/xtensa/include/asm/rwsem.h
@@ -27,7 +27,7 @@
 /*
  * lock for reading
  */
-static inline void __down_read(struct rw_semaphore *sem)
+static inline void __down_read(struct rw_anon_semaphore *sem)
 {
 	if (atomic_add_return(1,(atomic_t *)(&sem->count)) > 0)
 		smp_wmb();
@@ -35,7 +35,7 @@ static inline void __down_read(struct rw_semaphore *sem)
 		rwsem_down_read_failed(sem);
 }
 
-static inline int __down_read_trylock(struct rw_semaphore *sem)
+static inline int __down_read_trylock(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -52,7 +52,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 /*
  * lock for writing
  */
-static inline void __down_write(struct rw_semaphore *sem)
+static inline void __down_write(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -64,7 +64,7 @@ static inline void __down_write(struct rw_semaphore *sem)
 		rwsem_down_write_failed(sem);
 }
 
-static inline int __down_write_trylock(struct rw_semaphore *sem)
+static inline int __down_write_trylock(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -77,7 +77,7 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 /*
  * unlock after reading
  */
-static inline void __up_read(struct rw_semaphore *sem)
+static inline void __up_read(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -90,7 +90,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 /*
  * unlock after writing
  */
-static inline void __up_write(struct rw_semaphore *sem)
+static inline void __up_write(struct rw_anon_semaphore *sem)
 {
 	smp_wmb();
 	if (atomic_sub_return(RWSEM_ACTIVE_WRITE_BIAS,
@@ -101,7 +101,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 /*
  * implement atomic add functionality
  */
-static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
+static inline void rwsem_atomic_add(int delta, struct rw_anon_semaphore *sem)
 {
 	atomic_add(delta, (atomic_t *)(&sem->count));
 }
@@ -109,7 +109,7 @@ static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
 /*
  * downgrade write lock to read lock
  */
-static inline void __downgrade_write(struct rw_semaphore *sem)
+static inline void __downgrade_write(struct rw_anon_semaphore *sem)
 {
 	int tmp;
 
@@ -122,7 +122,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 /*
  * implement exchange and add functionality
  */
-static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
+static inline int rwsem_atomic_update(int delta, struct rw_anon_semaphore *sem)
 {
 	smp_mb();
 	return atomic_add_return(delta, (atomic_t *)(&sem->count));