From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 1 Mar 2010 18:58:45 +0000 (-0500)
Subject: use uatomic_generic.h for common fallback implementations
X-Git-Tag: v0.4.2~14
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=b0926524217204eb3f4f13375c9eef75ff484d08;p=userspace-rcu.git

use uatomic_generic.h for common fallback implementations

And now, really remove the code for S390/SPARC, using the fallback
implementation of uatomic_generic.h

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/urcu/uatomic_arch_s390.h b/urcu/uatomic_arch_s390.h
index 2378ebd..5942ffe 100644
--- a/urcu/uatomic_arch_s390.h
+++ b/urcu/uatomic_arch_s390.h
@@ -163,48 +163,6 @@ unsigned long _uatomic_cmpxchg(void *addr, unsigned long old,
 					       (unsigned long)(_new),	\
 					       sizeof(*(addr)))
 
-/* uatomic_add_return */
-
-static inline __attribute__((always_inline))
-unsigned long _uatomic_add_return(void *addr, unsigned long val, int len)
-{
-	switch (len) {
-	case 4:
-	{
-		unsigned int old, oldt;
-
-		oldt = uatomic_read((unsigned int *)addr);
-		do {
-			old = oldt;
-			oldt = _uatomic_cmpxchg(addr, old, old + val, 4);
-		} while (oldt != old);
-
-		return old + val;
-	}
-#if (BITS_PER_LONG == 64)
-	case 8:
-	{
-		unsigned long old, oldt;
-
-		oldt = uatomic_read((unsigned long *)addr);
-		do {
-			old = oldt;
-			oldt = _uatomic_cmpxchg(addr, old, old + val, 8);
-		} while (oldt != old);
-
-		return old + val;
-	}
-#endif
-	}
-	__builtin_trap();
-	return 0;
-}
-
-#define uatomic_add_return(addr, v)					\
-	((__typeof__(*(addr))) _uatomic_add_return((addr),		\
-						  (unsigned long)(v),	\
-						  sizeof(*(addr))))
-
 #ifdef __cplusplus 
 }
 #endif
diff --git a/urcu/uatomic_arch_sparc64.h b/urcu/uatomic_arch_sparc64.h
index ec9d8e8..81f95cb 100644
--- a/urcu/uatomic_arch_sparc64.h
+++ b/urcu/uatomic_arch_sparc64.h
@@ -83,89 +83,6 @@ unsigned long _uatomic_cmpxchg(void *addr, unsigned long old,
 						(unsigned long)(_new), 	    \
 						sizeof(*(addr))))
 
-/* xchg */
-
-static inline __attribute__((always_inline))
-unsigned long _uatomic_exchange(void *addr, unsigned long val, int len)
-{
-	switch (len) {
-	case 4:
-	{
-		unsigned int old, oldt;
-
-		oldt = uatomic_read((unsigned int *)addr);
-		do {
-			old = oldt;
-			oldt = _uatomic_cmpxchg(addr, old, val, 4);
-		} while (oldt != old);
-
-		return old;
-	}
-#if (BITS_PER_LONG == 64)
-	case 8:
-	{
-		unsigned long old, oldt;
-
-		oldt = uatomic_read((unsigned long *)addr);
-		do {
-			old = oldt;
-			oldt = _uatomic_cmpxchg(addr, old, val, 8);
-		} while (oldt != old);
-
-		return old;
-	}
-#endif
-	}
-	__builtin_trap();
-	return 0;
-}
-
-#define uatomic_xchg(addr, v)						    \
-	((__typeof__(*(addr))) _uatomic_exchange((addr), (unsigned long)(v), \
-						sizeof(*(addr))))
-
-/* uatomic_add_return */
-
-static inline __attribute__((always_inline))
-unsigned long _uatomic_add_return(void *addr, unsigned long val, int len)
-{
-	switch (len) {
-	case 4:
-	{
-		unsigned int old, oldt;
-
-		oldt = uatomic_read((unsigned int *)addr);
-		do {
-			old = oldt;
-			oldt = _uatomic_cmpxchg(addr, old, old + val, 4);
-		} while (oldt != old);
-
-		return old + val;
-	}
-#if (BITS_PER_LONG == 64)
-	case 8:
-	{
-		unsigned long old, oldt;
-
-		oldt = uatomic_read((unsigned long *)addr);
-		do {
-			old = oldt;
-			oldt = _uatomic_cmpxchg(addr, old, old + val, 8);
-		} while (oldt != old);
-
-		return old + val;
-	}
-#endif
-	}
-	__builtin_trap();
-	return 0;
-}
-
-#define uatomic_add_return(addr, v)					\
-	((__typeof__(*(addr))) _uatomic_add_return((addr),		\
-						  (unsigned long)(v),	\
-						  sizeof(*(addr))))
-
 #ifdef __cplusplus 
 }
 #endif