Merge branch 'slabh' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc

[sfrench/cifs-2.6.git] / include / linux / percpu.h

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index a93e5bfdccb8e8b825006776f4afb77ebc975e90..d3a38d687104c4cc76700da32f8e97bd6f94dd60 100644 (file)
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -2,10 +2,10 @@
 #define __LINUX_PERCPU_H
 
 #include <linux/preempt.h>
-#include <linux/slab.h> /* For kmalloc() */
 #include <linux/smp.h>
 #include <linux/cpumask.h>
 #include <linux/pfn.h>
+#include <linux/init.h>
 
 #include <asm/percpu.h>
 
@@ -135,9 +135,7 @@ extern int __init pcpu_page_first_chunk(size_t reserved_size,
 #define per_cpu_ptr(ptr, cpu)  SHIFT_PERCPU_PTR((ptr), per_cpu_offset((cpu)))
 
 extern void __percpu *__alloc_reserved_percpu(size_t size, size_t align);
-extern void __percpu *__alloc_percpu(size_t size, size_t align);
-extern void free_percpu(void __percpu *__pdata);
-extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
+extern bool is_kernel_percpu_address(unsigned long addr);
 
 #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
 extern void __init setup_per_cpu_areas(void);
@@ -147,25 +145,10 @@ extern void __init setup_per_cpu_areas(void);
 
 #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); })
 
-static inline void __percpu *__alloc_percpu(size_t size, size_t align)
+/* can't distinguish from other static vars, always false */
+static inline bool is_kernel_percpu_address(unsigned long addr)
 {
-       /*
-        * Can't easily make larger alignment work with kmalloc.  WARN
-        * on it.  Larger alignment should only be used for module
-        * percpu sections on SMP for which this path isn't used.
-        */
-       WARN_ON_ONCE(align > SMP_CACHE_BYTES);
-       return kzalloc(size, GFP_KERNEL);
-}
-
-static inline void free_percpu(void __percpu *p)
-{
-       kfree(p);
-}
-
-static inline phys_addr_t per_cpu_ptr_to_phys(void *addr)
-{
-       return __pa(addr);
+       return false;
 }
 
 static inline void __init setup_per_cpu_areas(void) { }
@@ -177,6 +160,10 @@ static inline void *pcpu_lpage_remapped(void *kaddr)
 
 #endif /* CONFIG_SMP */
 
+extern void __percpu *__alloc_percpu(size_t size, size_t align);
+extern void free_percpu(void __percpu *__pdata);
+extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
+
 #define alloc_percpu(type)     \
        (typeof(type) __percpu *)__alloc_percpu(sizeof(type), __alignof__(type))