file_accessed(filp);
}
-int file_read_actor(read_descriptor_t *desc, struct page *page,
- unsigned long offset, unsigned long size)
-{
- char *kaddr;
- unsigned long left, count = desc->count;
-
- if (size > count)
- size = count;
-
- /*
- * Faults on the destination of a read are common, so do it before
- * taking the kmap.
- */
- if (!fault_in_pages_writeable(desc->arg.buf, size)) {
- kaddr = kmap_atomic(page);
- left = __copy_to_user_inatomic(desc->arg.buf,
- kaddr + offset, size);
- kunmap_atomic(kaddr);
- if (left == 0)
- goto success;
- }
-
- /* Do it the slow way */
- kaddr = kmap(page);
- left = __copy_to_user(desc->arg.buf, kaddr + offset, size);
- kunmap(page);
-
- if (left) {
- size -= left;
- desc->error = -EFAULT;
- }
-success:
- desc->count = count - size;
- desc->written += size;
- desc->arg.buf += size;
- return size;
-}
-
/*
* Performs necessary checks before doing a write
* @iov: io vector request
}
EXPORT_SYMBOL(generic_segment_checks);
-static int file_read_iter_actor(read_descriptor_t *desc, struct page *page,
- unsigned long offset, unsigned long size)
+int file_read_iter_actor(read_descriptor_t *desc, struct page *page,
+ unsigned long offset, unsigned long size)
{
struct iov_iter *iter = desc->arg.data;
unsigned long copied = 0;