// SPDX-License-Identifier: GPL-2.0#include <linux/highmem.h>#include <linux/crash_dump.h>#include <linux/uio.h> ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn, size_t csize, unsigned long offset){ void *vaddr; if (!csize) return 0; vaddr = kmap_local_pfn(pfn); csize = copy_to_iter(vaddr + offset, csize, iter); kunmap_local(vaddr); return csize;}
// SPDX-License-Identifier: GPL-2.0
#include <linux/highmem.h>
#include <linux/crash_dump.h>
#include <linux/uio.h>
ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn,
size_t csize, unsigned long offset)
{
void *vaddr;
if (!csize)
return 0;
vaddr = kmap_local_pfn(pfn);
csize = copy_to_iter(vaddr + offset, csize, iter);
kunmap_local(vaddr);
return csize;
}