144 static void nfs_read_completion(struct nfs_pgio_header *hdr)  in nfs_read_completion()  argument
148 	if (test_bit(NFS_IOHDR_REDO, &hdr->flags))  in nfs_read_completion()
150 	while (!list_empty(&hdr->pages)) {  in nfs_read_completion()
151 		struct nfs_page *req = nfs_list_entry(hdr->pages.next);  in nfs_read_completion()
156 		if (test_bit(NFS_IOHDR_EOF, &hdr->flags)) {  in nfs_read_completion()
160 			if (bytes > hdr->good_bytes) {  in nfs_read_completion()
165 			} else if (hdr->good_bytes - bytes < req->wb_bytes) {  in nfs_read_completion()
168 				start += hdr->good_bytes - bytes;  in nfs_read_completion()
174 		if (test_bit(NFS_IOHDR_ERROR, &hdr->flags)) {  in nfs_read_completion()
175 			if (bytes <= hdr->good_bytes)  in nfs_read_completion()
183 	hdr->release(hdr);  in nfs_read_completion()
186 static void nfs_initiate_read(struct nfs_pgio_header *hdr,  in nfs_initiate_read()  argument
191 	struct inode *inode = hdr->inode;  in nfs_initiate_read()
195 	rpc_ops->read_setup(hdr, msg);  in nfs_initiate_read()
220 			     struct nfs_pgio_header *hdr,  in nfs_readpage_done()  argument
223 	int status = NFS_PROTO(inode)->read_done(task, hdr);  in nfs_readpage_done()
227 	nfs_add_stats(inode, NFSIOS_SERVERREADBYTES, hdr->res.count);  in nfs_readpage_done()
237 			       struct nfs_pgio_header *hdr)  in nfs_readpage_retry()  argument
239 	struct nfs_pgio_args *argp = &hdr->args;  in nfs_readpage_retry()
240 	struct nfs_pgio_res  *resp = &hdr->res;  in nfs_readpage_retry()
243 	nfs_inc_stats(hdr->inode, NFSIOS_SHORTREAD);  in nfs_readpage_retry()
246 		nfs_set_pgio_error(hdr, -EIO, argp->offset);  in nfs_readpage_retry()
252 		hdr->pnfs_error = -EAGAIN;  in nfs_readpage_retry()
257 	hdr->mds_offset += resp->count;  in nfs_readpage_retry()
265 				struct nfs_pgio_header *hdr)  in nfs_readpage_result()  argument
267 	if (hdr->res.eof) {  in nfs_readpage_result()
270 		bound = hdr->args.offset + hdr->res.count;  in nfs_readpage_result()
271 		spin_lock(&hdr->lock);  in nfs_readpage_result()
272 		if (bound < hdr->io_start + hdr->good_bytes) {  in nfs_readpage_result()
273 			set_bit(NFS_IOHDR_EOF, &hdr->flags);  in nfs_readpage_result()
274 			clear_bit(NFS_IOHDR_ERROR, &hdr->flags);  in nfs_readpage_result()
275 			hdr->good_bytes = bound - hdr->io_start;  in nfs_readpage_result()
277 		spin_unlock(&hdr->lock);  in nfs_readpage_result()
278 	} else if (hdr->res.count < hdr->args.count)  in nfs_readpage_result()
279 		nfs_readpage_retry(task, hdr);  in nfs_readpage_result()