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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-03-05 15:46:18 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-03-05 15:46:18 -0500 |
| commit | 3fa04ecd72780da31ba8b329e148179bc24a9c7d (patch) | |
| tree | f5d462fd4aee086952d18f159f737c450ab46b3b /include/asm-generic/percpu.h | |
| parent | 180b62a3d837613fcac3ce89576526423926c3c3 (diff) | |
| parent | 1cda707d52e51a6cafac0aef12d2bd7052d572e6 (diff) | |
Merge branch 'writeback-for-2.6.34' into nfs-for-2.6.34
Diffstat (limited to 'include/asm-generic/percpu.h')
| -rw-r--r-- | include/asm-generic/percpu.h | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index 8087b90d4673..04f91c2d3f7b 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -41,7 +41,11 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; * Only S390 provides its own means of moving the pointer. */ #ifndef SHIFT_PERCPU_PTR -#define SHIFT_PERCPU_PTR(__p, __offset) RELOC_HIDE((__p), (__offset)) +/* Weird cast keeps both GCC and sparse happy. */ +#define SHIFT_PERCPU_PTR(__p, __offset) ({ \ + __verify_pcpu_ptr((__p)); \ + RELOC_HIDE((typeof(*(__p)) __kernel __force *)(__p), (__offset)); \ +}) #endif /* @@ -50,11 +54,11 @@ extern unsigned long __per_cpu_offset[NR_CPUS]; * offset. */ #define per_cpu(var, cpu) \ - (*SHIFT_PERCPU_PTR(&per_cpu_var(var), per_cpu_offset(cpu))) + (*SHIFT_PERCPU_PTR(&(var), per_cpu_offset(cpu))) #define __get_cpu_var(var) \ - (*SHIFT_PERCPU_PTR(&per_cpu_var(var), my_cpu_offset)) + (*SHIFT_PERCPU_PTR(&(var), my_cpu_offset)) #define __raw_get_cpu_var(var) \ - (*SHIFT_PERCPU_PTR(&per_cpu_var(var), __my_cpu_offset)) + (*SHIFT_PERCPU_PTR(&(var), __my_cpu_offset)) #define this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, my_cpu_offset) #define __this_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset) @@ -66,9 +70,9 @@ extern void setup_per_cpu_areas(void); #else /* ! SMP */ -#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu_var(var))) -#define __get_cpu_var(var) per_cpu_var(var) -#define __raw_get_cpu_var(var) per_cpu_var(var) +#define per_cpu(var, cpu) (*((void)(cpu), &(var))) +#define __get_cpu_var(var) (var) +#define __raw_get_cpu_var(var) (var) #define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) #define __this_cpu_ptr(ptr) this_cpu_ptr(ptr) |