/*
* Copy user data from/to a page which is mapped into a different processes
* address space. Really, we want to allow our "user space" model to handle
* this.
*/
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long uaddr, void *dst, const void *src,
unsigned long len)
{
memcpy(dst, src, len);
flush_ptrace_access(vma, page, uaddr, dst, len);
}
/*
* Copy user data from/to a page which is mapped into a different processes
* address space. Really, we want to allow our "user space" model to handle
* this.
*
* Note that this code needs to run on the current CPU.
*/
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long uaddr, void *dst, const void *src,
unsigned long len)
{
#ifdef CONFIG_SMP
preempt_disable();
#endif
memcpy(dst, src, len);
flush_ptrace_access(vma, page, uaddr, dst, len);
#ifdef CONFIG_SMP
preempt_enable();
#endif
}