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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-04-05 12:39:11 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-04-05 12:39:11 -0400 |
| commit | b66696e3c0d8fc01efdbc701eba1276618332cb3 (patch) | |
| tree | 3094ef42787b8e0c900bce1f2391ced081ed1ba4 /include/linux/percpu.h | |
| parent | 9e74e7c81a24aee66024fc477786bd1de84e293b (diff) | |
| parent | a32f3926632e71c8aa23ce32fe2625f8d5f792c2 (diff) | |
Merge branch 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc
* 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc:
eeepc-wmi: include slab.h
staging/otus: include slab.h from usbdrv.h
percpu: don't implicitly include slab.h from percpu.h
kmemcheck: Fix build errors due to missing slab.h
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
iwlwifi: don't include iwl-dev.h from iwl-devtrace.h
x86: don't include slab.h from arch/x86/include/asm/pgtable_32.h
Fix up trivial conflicts in include/linux/percpu.h due to
is_kernel_percpu_address() having been introduced since the slab.h
cleanup with the percpu_up.c splitup.
Diffstat (limited to 'include/linux/percpu.h')
| -rw-r--r-- | include/linux/percpu.h | 30 |
1 files changed, 5 insertions, 25 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 11d5f834b54a..d3a38d687104 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h | |||
| @@ -2,10 +2,10 @@ | |||
| 2 | #define __LINUX_PERCPU_H | 2 | #define __LINUX_PERCPU_H |
| 3 | 3 | ||
| 4 | #include <linux/preempt.h> | 4 | #include <linux/preempt.h> |
| 5 | #include <linux/slab.h> /* For kmalloc() */ | ||
| 6 | #include <linux/smp.h> | 5 | #include <linux/smp.h> |
| 7 | #include <linux/cpumask.h> | 6 | #include <linux/cpumask.h> |
| 8 | #include <linux/pfn.h> | 7 | #include <linux/pfn.h> |
| 8 | #include <linux/init.h> | ||
| 9 | 9 | ||
| 10 | #include <asm/percpu.h> | 10 | #include <asm/percpu.h> |
| 11 | 11 | ||
| @@ -135,10 +135,7 @@ extern int __init pcpu_page_first_chunk(size_t reserved_size, | |||
| 135 | #define per_cpu_ptr(ptr, cpu) SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu))) | 135 | #define per_cpu_ptr(ptr, cpu) SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu))) |
| 136 | 136 | ||
| 137 | extern void __percpu *__alloc_reserved_percpu(size_t size, size_t align); | 137 | extern void __percpu *__alloc_reserved_percpu(size_t size, size_t align); |
| 138 | extern void __percpu *__alloc_percpu(size_t size, size_t align); | ||
| 139 | extern void free_percpu(void __percpu *__pdata); | ||
| 140 | extern bool is_kernel_percpu_address(unsigned long addr); | 138 | extern bool is_kernel_percpu_address(unsigned long addr); |
| 141 | extern phys_addr_t per_cpu_ptr_to_phys(void *addr); | ||
| 142 | 139 | ||
| 143 | #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA | 140 | #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA |
| 144 | extern void __init setup_per_cpu_areas(void); | 141 | extern void __init setup_per_cpu_areas(void); |
| @@ -148,33 +145,12 @@ extern void __init setup_per_cpu_areas(void); | |||
| 148 | 145 | ||
| 149 | #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); }) | 146 | #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); }) |
| 150 | 147 | ||
| 151 | static inline void __percpu *__alloc_percpu(size_t size, size_t align) | ||
| 152 | { | ||
| 153 | /* | ||
| 154 | * Can't easily make larger alignment work with kmalloc. WARN | ||
| 155 | * on it. Larger alignment should only be used for module | ||
| 156 | * percpu sections on SMP for which this path isn't used. | ||
| 157 | */ | ||
| 158 | WARN_ON_ONCE(align > SMP_CACHE_BYTES); | ||
| 159 | return kzalloc(size, GFP_KERNEL); | ||
| 160 | } | ||
| 161 | |||
| 162 | static inline void free_percpu(void __percpu *p) | ||
| 163 | { | ||
| 164 | kfree(p); | ||
| 165 | } | ||
| 166 | |||
| 167 | /* can't distinguish from other static vars, always false */ | 148 | /* can't distinguish from other static vars, always false */ |
| 168 | static inline bool is_kernel_percpu_address(unsigned long addr) | 149 | static inline bool is_kernel_percpu_address(unsigned long addr) |
| 169 | { | 150 | { |
| 170 | return false; | 151 | return false; |
| 171 | } | 152 | } |
| 172 | 153 | ||
| 173 | static inline phys_addr_t per_cpu_ptr_to_phys(void *addr) | ||
| 174 | { | ||
| 175 | return __pa(addr); | ||
| 176 | } | ||
| 177 | |||
| 178 | static inline void __init setup_per_cpu_areas(void) { } | 154 | static inline void __init setup_per_cpu_areas(void) { } |
| 179 | 155 | ||
| 180 | static inline void *pcpu_lpage_remapped(void *kaddr) | 156 | static inline void *pcpu_lpage_remapped(void *kaddr) |
| @@ -184,6 +160,10 @@ static inline void *pcpu_lpage_remapped(void *kaddr) | |||
| 184 | 160 | ||
| 185 | #endif /* CONFIG_SMP */ | 161 | #endif /* CONFIG_SMP */ |
| 186 | 162 | ||
| 163 | extern void __percpu *__alloc_percpu(size_t size, size_t align); | ||
| 164 | extern void free_percpu(void __percpu *__pdata); | ||
| 165 | extern phys_addr_t per_cpu_ptr_to_phys(void *addr); | ||
| 166 | |||
| 187 | #define alloc_percpu(type) \ | 167 | #define alloc_percpu(type) \ |
| 188 | (typeof(type) __percpu *)__alloc_percpu(sizeof(type), __alignof__(type)) | 168 | (typeof(type) __percpu *)__alloc_percpu(sizeof(type), __alignof__(type)) |
| 189 | 169 | ||
