[patch 01/21] mutex subsystem, add atomic_xchg() to all arches

From: Ingo Molnar
Date: Wed Jan 04 2006 - 09:41:54 EST

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add atomic_xchg() to all the architectures. Needed by the new mutex code.

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Arjan van de Ven <arjan@xxxxxxxxxxxxx>

----

include/asm-alpha/atomic.h | 1 +
include/asm-arm/atomic.h | 2 ++
include/asm-arm26/atomic.h | 2 ++
include/asm-cris/atomic.h | 2 ++
include/asm-frv/atomic.h | 1 +
include/asm-h8300/atomic.h | 2 ++
include/asm-i386/atomic.h | 1 +
include/asm-ia64/atomic.h | 1 +
include/asm-m32r/atomic.h | 1 +
include/asm-m68k/atomic.h | 1 +
include/asm-m68knommu/atomic.h | 1 +
include/asm-mips/atomic.h | 1 +
include/asm-parisc/atomic.h | 1 +
include/asm-powerpc/atomic.h | 1 +
include/asm-s390/atomic.h | 1 +
include/asm-sh/atomic.h | 2 ++
include/asm-sh64/atomic.h | 2 ++
include/asm-sparc/atomic.h | 1 +
include/asm-sparc64/atomic.h | 1 +
include/asm-v850/atomic.h | 2 ++
include/asm-x86_64/atomic.h | 1 +
include/asm-xtensa/atomic.h | 1 +
22 files changed, 29 insertions(+)

Index: linux/include/asm-alpha/atomic.h
===================================================================
--- linux.orig/include/asm-alpha/atomic.h
+++ linux/include/asm-alpha/atomic.h
@@ -176,6 +176,7 @@ static __inline__ long atomic64_sub_retu
}

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

#define atomic_add_unless(v, a, u) \
({ \
Index: linux/include/asm-arm/atomic.h
===================================================================
--- linux.orig/include/asm-arm/atomic.h
+++ linux/include/asm-arm/atomic.h
@@ -175,6 +175,8 @@ static inline void atomic_clear_mask(uns

#endif /* __LINUX_ARM_ARCH__ */

+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int c, old;
Index: linux/include/asm-arm26/atomic.h
===================================================================
--- linux.orig/include/asm-arm26/atomic.h
+++ linux/include/asm-arm26/atomic.h
@@ -76,6 +76,8 @@ static inline int atomic_cmpxchg(atomic_
return ret;
}

+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
Index: linux/include/asm-cris/atomic.h
===================================================================
--- linux.orig/include/asm-cris/atomic.h
+++ linux/include/asm-cris/atomic.h
@@ -136,6 +136,8 @@ static inline int atomic_cmpxchg(atomic_
return ret;
}

+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
Index: linux/include/asm-frv/atomic.h
===================================================================
--- linux.orig/include/asm-frv/atomic.h
+++ linux/include/asm-frv/atomic.h
@@ -415,6 +415,7 @@ extern uint32_t __cmpxchg_32(uint32_t *v
#endif

#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

#define atomic_add_unless(v, a, u) \
({ \
Index: linux/include/asm-h8300/atomic.h
===================================================================
--- linux.orig/include/asm-h8300/atomic.h
+++ linux/include/asm-h8300/atomic.h
@@ -95,6 +95,8 @@ static inline int atomic_cmpxchg(atomic_
return ret;
}

+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
Index: linux/include/asm-i386/atomic.h
===================================================================
--- linux.orig/include/asm-i386/atomic.h
+++ linux/include/asm-i386/atomic.h
@@ -216,6 +216,7 @@ static __inline__ int atomic_sub_return(
}

#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

/**
* atomic_add_unless - add unless the number is a given value
Index: linux/include/asm-ia64/atomic.h
===================================================================
--- linux.orig/include/asm-ia64/atomic.h
+++ linux/include/asm-ia64/atomic.h
@@ -89,6 +89,7 @@ ia64_atomic64_sub (__s64 i, atomic64_t *
}

#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

#define atomic_add_unless(v, a, u) \
({ \
Index: linux/include/asm-m32r/atomic.h
===================================================================
--- linux.orig/include/asm-m32r/atomic.h
+++ linux/include/asm-m32r/atomic.h
@@ -243,6 +243,7 @@ static __inline__ int atomic_dec_return(
#define atomic_add_negative(i,v) (atomic_add_return((i), (v)) < 0)

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

/**
* atomic_add_unless - add unless the number is a given value
Index: linux/include/asm-m68k/atomic.h
===================================================================
--- linux.orig/include/asm-m68k/atomic.h
+++ linux/include/asm-m68k/atomic.h
@@ -140,6 +140,7 @@ static inline void atomic_set_mask(unsig
}

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

#define atomic_add_unless(v, a, u) \
({ \
Index: linux/include/asm-m68knommu/atomic.h
===================================================================
--- linux.orig/include/asm-m68knommu/atomic.h
+++ linux/include/asm-m68knommu/atomic.h
@@ -129,6 +129,7 @@ static inline int atomic_sub_return(int
}

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

#define atomic_add_unless(v, a, u) \
({ \
Index: linux/include/asm-mips/atomic.h
===================================================================
--- linux.orig/include/asm-mips/atomic.h
+++ linux/include/asm-mips/atomic.h
@@ -289,6 +289,7 @@ static __inline__ int atomic_sub_if_posi
}

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

/**
* atomic_add_unless - add unless the number is a given value
Index: linux/include/asm-parisc/atomic.h
===================================================================
--- linux.orig/include/asm-parisc/atomic.h
+++ linux/include/asm-parisc/atomic.h
@@ -165,6 +165,7 @@ static __inline__ int atomic_read(const

/* exported interface */
#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

/**
* atomic_add_unless - add unless the number is a given value
Index: linux/include/asm-powerpc/atomic.h
===================================================================
--- linux.orig/include/asm-powerpc/atomic.h
+++ linux/include/asm-powerpc/atomic.h
@@ -165,6 +165,7 @@ static __inline__ int atomic_dec_return(
}

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

/**
* atomic_add_unless - add unless the number is a given value
Index: linux/include/asm-s390/atomic.h
===================================================================
--- linux.orig/include/asm-s390/atomic.h
+++ linux/include/asm-s390/atomic.h
@@ -199,6 +199,7 @@ atomic_compare_and_swap(int expected_old
}

#define atomic_cmpxchg(v, o, n) (atomic_compare_and_swap((o), (n), &((v)->counter)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

#define atomic_add_unless(v, a, u) \
({ \
Index: linux/include/asm-sh/atomic.h
===================================================================
--- linux.orig/include/asm-sh/atomic.h
+++ linux/include/asm-sh/atomic.h
@@ -101,6 +101,8 @@ static inline int atomic_cmpxchg(atomic_
return ret;
}

+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
Index: linux/include/asm-sh64/atomic.h
===================================================================
--- linux.orig/include/asm-sh64/atomic.h
+++ linux/include/asm-sh64/atomic.h
@@ -113,6 +113,8 @@ static inline int atomic_cmpxchg(atomic_
return ret;
}

+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
Index: linux/include/asm-sparc/atomic.h
===================================================================
--- linux.orig/include/asm-sparc/atomic.h
+++ linux/include/asm-sparc/atomic.h
@@ -20,6 +20,7 @@ typedef struct { volatile int counter; }

extern int __atomic_add_return(int, atomic_t *);
extern int atomic_cmpxchg(atomic_t *, int, int);
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
extern int atomic_add_unless(atomic_t *, int, int);
extern void atomic_set(atomic_t *, int);

Index: linux/include/asm-sparc64/atomic.h
===================================================================
--- linux.orig/include/asm-sparc64/atomic.h
+++ linux/include/asm-sparc64/atomic.h
@@ -72,6 +72,7 @@ extern int atomic64_sub_ret(int, atomic6
#define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0)

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

#define atomic_add_unless(v, a, u) \
({ \
Index: linux/include/asm-v850/atomic.h
===================================================================
--- linux.orig/include/asm-v850/atomic.h
+++ linux/include/asm-v850/atomic.h
@@ -104,6 +104,8 @@ static inline int atomic_cmpxchg(atomic_
return ret;
}

+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
Index: linux/include/asm-x86_64/atomic.h
===================================================================
--- linux.orig/include/asm-x86_64/atomic.h
+++ linux/include/asm-x86_64/atomic.h
@@ -389,6 +389,7 @@ static __inline__ long atomic64_sub_retu
#define atomic64_dec_return(v) (atomic64_sub_return(1,v))

#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

/**
* atomic_add_unless - add unless the number is a given value
Index: linux/include/asm-xtensa/atomic.h
===================================================================
--- linux.orig/include/asm-xtensa/atomic.h
+++ linux/include/asm-xtensa/atomic.h
@@ -224,6 +224,7 @@ static inline int atomic_sub_return(int
#define atomic_add_negative(i,v) (atomic_add_return((i),(v)) < 0)

#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))

/**
* atomic_add_unless - add unless the number is a given value
-
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