X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-m32r%2Fsystem.h;h=4ce0619f6989024855782484766eb0adfa88cc78;hb=refs%2Fheads%2Fvserver;hp=e55013f378e582357df670aee5638e62e8e5a2af;hpb=43bc926fffd92024b46cafaf7350d669ba9ca884;p=linux-2.6.git diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h index e55013f37..4ce0619f6 100644 --- a/include/asm-m32r/system.h +++ b/include/asm-m32r/system.h @@ -10,7 +10,6 @@ * Copyright (C) 2004, 2006 Hirokazu Takata */ -#include #include #ifdef __KERNEL__ @@ -19,7 +18,7 @@ * switch_to(prev, next) should switch from task `prev' to `next' * `prev' will never be the same as `next'. * - * `next' and `prev' should be task_t, but it isn't always defined + * `next' and `prev' should be struct task_struct, but it isn't always defined */ #define switch_to(prev, next, last) do { \ @@ -319,7 +318,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) * does not enforce ordering, since there is no data dependency between * the read of "a" and the read of "b". Therefore, on some CPUs, such * as Alpha, "y" could be set to 3 and "x" to 0. Use rmb() - * in cases like thiswhere there are no data dependencies. + * in cases like this where there are no data dependencies. **/ #define read_barrier_depends() do { } while (0) @@ -329,16 +328,15 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) #define smp_rmb() rmb() #define smp_wmb() wmb() #define smp_read_barrier_depends() read_barrier_depends() +#define set_mb(var, value) do { (void) xchg(&var, value); } while (0) #else #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #define smp_read_barrier_depends() do { } while (0) +#define set_mb(var, value) do { var = value; barrier(); } while (0) #endif -#define set_mb(var, value) do { xchg(&var, value); } while (0) -#define set_wmb(var, value) do { var = value; wmb(); } while (0) - #define arch_align_stack(x) (x) #endif /* _ASM_M32R_SYSTEM_H */