[net-next-2.6.git] / mm / percpu_up.c

/*
 * mm/percpu_up.c - dummy percpu memory allocator implementation for UP
 */

#include <linux/module.h>
#include <linux/percpu.h>
#include <linux/slab.h>

void __percpu *__alloc_percpu(size_t size, size_t align)
{
	/*
	 * 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 (void __percpu __force *)kzalloc(size, GFP_KERNEL);
}
EXPORT_SYMBOL_GPL(__alloc_percpu);

void free_percpu(void __percpu *p)
{
	kfree(this_cpu_ptr(p));
}
EXPORT_SYMBOL_GPL(free_percpu);

phys_addr_t per_cpu_ptr_to_phys(void *addr)
{
	return __pa(addr);
}
Commit	Line	Data
de380b55 TH	1	/*
	2	* mm/percpu_up.c - dummy percpu memory allocator implementation for UP
	3	*/
	4
	5	#include <linux/module.h>
	6	#include <linux/percpu.h>
	7	#include <linux/slab.h>
	8
	9	void __percpu *__alloc_percpu(size_t size, size_t align)
	10	{
	11	/*
	12	* Can't easily make larger alignment work with kmalloc. WARN
	13	* on it. Larger alignment should only be used for module
	14	* percpu sections on SMP for which this path isn't used.
	15	*/
	16	WARN_ON_ONCE(align > SMP_CACHE_BYTES);
94cb121c	17	return (void __percpu __force *)kzalloc(size, GFP_KERNEL);
de380b55 TH	18	}
	19	EXPORT_SYMBOL_GPL(__alloc_percpu);
	20
	21	void free_percpu(void __percpu *p)
	22	{
94cb121c	23	kfree(this_cpu_ptr(p));
de380b55 TH	24	}
	25	EXPORT_SYMBOL_GPL(free_percpu);
	26
	27	phys_addr_t per_cpu_ptr_to_phys(void *addr)
	28	{
	29	return __pa(addr);
	30	}