From ffbf670f5cd50501a34a5187981460da2216071e Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jan 2006 15:59:17 -0800 Subject: [PATCH] [PATCH] mutex subsystem, add atomic_xchg() to all arches add atomic_xchg() to all the architectures. Needed by the new mutex code. Signed-off-by: Ingo Molnar Signed-off-by: Arjan van de Ven --- 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 | 2 ++ 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, 30 insertions(+) diff --git a/include/asm-alpha/atomic.h b/include/asm-alpha/atomic.h index cb03bbe92cdf..fc77f7413083 100644 --- a/include/asm-alpha/atomic.h +++ b/include/asm-alpha/atomic.h @@ -176,6 +176,7 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v) } #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) \ ({ \ diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h index f72b63309bc5..3d7283d84405 100644 --- a/include/asm-arm/atomic.h +++ b/include/asm-arm/atomic.h @@ -175,6 +175,8 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) #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; diff --git a/include/asm-arm26/atomic.h b/include/asm-arm26/atomic.h index 3074b0e76343..1552c8653990 100644 --- a/include/asm-arm26/atomic.h +++ b/include/asm-arm26/atomic.h @@ -76,6 +76,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) 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; diff --git a/include/asm-cris/atomic.h b/include/asm-cris/atomic.h index 2df2c7aa19b7..0b51a87e5532 100644 --- a/include/asm-cris/atomic.h +++ b/include/asm-cris/atomic.h @@ -136,6 +136,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) 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; diff --git a/include/asm-frv/atomic.h b/include/asm-frv/atomic.h index 9c9e9499cfd8..a59f684b4f33 100644 --- a/include/asm-frv/atomic.h +++ b/include/asm-frv/atomic.h @@ -328,6 +328,7 @@ extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new); #endif #define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new)) +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) #define atomic_add_unless(v, a, u) \ ({ \ diff --git a/include/asm-h8300/atomic.h b/include/asm-h8300/atomic.h index d891541e89c3..21f54428c86b 100644 --- a/include/asm-h8300/atomic.h +++ b/include/asm-h8300/atomic.h @@ -95,6 +95,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) 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; diff --git a/include/asm-i386/atomic.h b/include/asm-i386/atomic.h index 7a5472d77091..de649d3aa2d4 100644 --- a/include/asm-i386/atomic.h +++ b/include/asm-i386/atomic.h @@ -216,6 +216,7 @@ static __inline__ int atomic_sub_return(int i, atomic_t *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 diff --git a/include/asm-ia64/atomic.h b/include/asm-ia64/atomic.h index 15cf7984c48e..d3e0dfa99e1f 100644 --- a/include/asm-ia64/atomic.h +++ b/include/asm-ia64/atomic.h @@ -89,6 +89,7 @@ ia64_atomic64_sub (__s64 i, atomic64_t *v) } #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) \ ({ \ diff --git a/include/asm-m32r/atomic.h b/include/asm-m32r/atomic.h index 70761278b6cb..3122fe106f05 100644 --- a/include/asm-m32r/atomic.h +++ b/include/asm-m32r/atomic.h @@ -243,6 +243,7 @@ static __inline__ int atomic_dec_return(atomic_t *v) #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 diff --git a/include/asm-m68k/atomic.h b/include/asm-m68k/atomic.h index b8a4e75d679d..a4a84d5c65d5 100644 --- a/include/asm-m68k/atomic.h +++ b/include/asm-m68k/atomic.h @@ -140,6 +140,7 @@ static inline void atomic_set_mask(unsigned long mask, unsigned long *v) } #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) \ ({ \ diff --git a/include/asm-m68knommu/atomic.h b/include/asm-m68knommu/atomic.h index 1702dbe9318c..6c4e4b63e454 100644 --- a/include/asm-m68knommu/atomic.h +++ b/include/asm-m68knommu/atomic.h @@ -129,6 +129,7 @@ static inline int atomic_sub_return(int i, atomic_t * v) } #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) \ ({ \ diff --git a/include/asm-mips/atomic.h b/include/asm-mips/atomic.h index 92256e43a938..94a95872d727 100644 --- a/include/asm-mips/atomic.h +++ b/include/asm-mips/atomic.h @@ -289,6 +289,7 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v) } #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 diff --git a/include/asm-parisc/atomic.h b/include/asm-parisc/atomic.h index 64ebd086c40d..2ca56d34aaad 100644 --- a/include/asm-parisc/atomic.h +++ b/include/asm-parisc/atomic.h @@ -165,6 +165,7 @@ static __inline__ int atomic_read(const atomic_t *v) /* 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 diff --git a/include/asm-powerpc/atomic.h b/include/asm-powerpc/atomic.h index ae395a0632a6..248f9aec959c 100644 --- a/include/asm-powerpc/atomic.h +++ b/include/asm-powerpc/atomic.h @@ -165,6 +165,7 @@ static __inline__ int atomic_dec_return(atomic_t *v) } #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 diff --git a/include/asm-s390/atomic.h b/include/asm-s390/atomic.h index d82aedf616fe..be6fefe223d6 100644 --- a/include/asm-s390/atomic.h +++ b/include/asm-s390/atomic.h @@ -75,6 +75,8 @@ static __inline__ void atomic_set_mask(unsigned long mask, atomic_t * v) __CS_LOOP(v, mask, "or"); } +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) + static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new) { __asm__ __volatile__(" cs %0,%3,0(%2)\n" diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h index 618d8e0de348..fb627de217f2 100644 --- a/include/asm-sh/atomic.h +++ b/include/asm-sh/atomic.h @@ -101,6 +101,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) 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; diff --git a/include/asm-sh64/atomic.h b/include/asm-sh64/atomic.h index f3ce5c0df13a..28f2ea9b567b 100644 --- a/include/asm-sh64/atomic.h +++ b/include/asm-sh64/atomic.h @@ -113,6 +113,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) 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; diff --git a/include/asm-sparc/atomic.h b/include/asm-sparc/atomic.h index accb4967e9d2..e1033170bd3a 100644 --- a/include/asm-sparc/atomic.h +++ b/include/asm-sparc/atomic.h @@ -20,6 +20,7 @@ typedef struct { volatile int counter; } atomic_t; 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); diff --git a/include/asm-sparc64/atomic.h b/include/asm-sparc64/atomic.h index 11f5aa5d108c..25256bdc8aae 100644 --- a/include/asm-sparc64/atomic.h +++ b/include/asm-sparc64/atomic.h @@ -72,6 +72,7 @@ extern int atomic64_sub_ret(int, atomic64_t *); #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) \ ({ \ diff --git a/include/asm-v850/atomic.h b/include/asm-v850/atomic.h index f5b9ab6f4e70..166df00457ea 100644 --- a/include/asm-v850/atomic.h +++ b/include/asm-v850/atomic.h @@ -104,6 +104,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) 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; diff --git a/include/asm-x86_64/atomic.h b/include/asm-x86_64/atomic.h index 72eb071488c7..6b540237a2f8 100644 --- a/include/asm-x86_64/atomic.h +++ b/include/asm-x86_64/atomic.h @@ -389,6 +389,7 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t *v) #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 diff --git a/include/asm-xtensa/atomic.h b/include/asm-xtensa/atomic.h index e2ce06b101ad..fe105a123924 100644 --- a/include/asm-xtensa/atomic.h +++ b/include/asm-xtensa/atomic.h @@ -224,6 +224,7 @@ static inline int atomic_sub_return(int i, atomic_t * v) #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