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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-09-07 23:08:37 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-09-07 23:08:37 +0200 |
| commit | ce7db282a3830f57f5b05ec48288c23a5c4d66d5 (patch) | |
| tree | 8e191c4b2ffa1658d5c014da5cc6230fc58c1a59 /include | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq (diff) | |
| parent | percpu: fix a mismatch between code and comment (diff) | |
| download | linux-ce7db282a3830f57f5b05ec48288c23a5c4d66d5.tar.xz linux-ce7db282a3830f57f5b05ec48288c23a5c4d66d5.zip | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: fix a mismatch between code and comment
percpu: fix a memory leak in pcpu_extend_area_map()
percpu: add __percpu notations to UP allocator
percpu: handle __percpu notations in UP accessors
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/percpu.h | 15 | ||||
| -rw-r--r-- | include/linux/percpu.h | 2 |
2 files changed, 11 insertions, 6 deletions
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index b5043a9890d8..08923b684768 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -70,11 +70,16 @@ extern void setup_per_cpu_areas(void); #else /* ! SMP */ -#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) +#define VERIFY_PERCPU_PTR(__p) ({ \ + __verify_pcpu_ptr((__p)); \ + (typeof(*(__p)) __kernel __force *)(__p); \ +}) + +#define per_cpu(var, cpu) (*((void)(cpu), VERIFY_PERCPU_PTR(&(var)))) +#define __get_cpu_var(var) (*VERIFY_PERCPU_PTR(&(var))) +#define __raw_get_cpu_var(var) (*VERIFY_PERCPU_PTR(&(var))) +#define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0) +#define __this_cpu_ptr(ptr) this_cpu_ptr(ptr) #endif /* SMP */ diff --git a/include/linux/percpu.h b/include/linux/percpu.h index b8b9084527b1..49466b13c5c6 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -149,7 +149,7 @@ extern void __init percpu_init_late(void); #else /* CONFIG_SMP */ -#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); }) +#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR((ptr)); }) /* can't distinguish from other static vars, always false */ static inline bool is_kernel_percpu_address(unsigned long addr) |