linux-master/fs/namespace.c

4958 static int prepare_kstatmount(struct kstatmount *ks, struct mnt_id_req *kreq,
4966 	ks->mask = kreq->param;
4977 			   struct mnt_id_req *kreq)
4991 	memset(kreq, 0, sizeof(*kreq));
4992 	ret = copy_struct_from_user(kreq, sizeof(*kreq), req, usize);
4995 	if (kreq->spare != 0)
5005 	struct mnt_id_req kreq;
5014 	ret = copy_mnt_id_req(req, &kreq);
5019 	ret = prepare_kstatmount(&ks, &kreq, buf, bufsize, seq_size);
5024 	mnt = lookup_mnt_in_ns(kreq.mnt_id, current->nsproxy->mnt_ns);
5087 	struct mnt_id_req kreq;
5103 	ret = copy_mnt_id_req(req, &kreq);
5106 	mnt_parent_id = kreq.mnt_id;
5107 	last_mnt_id = kreq.param;