linux/mm/percpu_up.c
Namhyung Kim 94cb121c94 percpu: add __percpu notations to UP allocator
Add __percpu notations to UP percpu allocator.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2010-08-07 14:20:53 +02:00

31 lines
711 B
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);
}