forked from luck/tmp_suning_uos_patched
94cb121c94
Add __percpu notations to UP percpu allocator. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
31 lines
711 B
C
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);
|
|
}
|