NFS: change nfs_writeback_done to return void

The return values are not used by any callers.
Signed-off-by: NFred Isaman <iisaman@netapp.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/write.c

@@ -1132,7 +1132,7 @@ static const struct rpc_call_ops nfs_write_full_ops = {
 /*
  * This function is called when the WRITE call is complete.
  */
-int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
+void nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
 {
 	struct nfs_writeargs	*argp = &data->args;
 	struct nfs_writeres	*resp = &data->res;
@@ -1151,7 +1151,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
 	 */
 	status = NFS_PROTO(data->inode)->write_done(task, data);
 	if (status != 0)
-		return status;
+		return;
 	nfs_add_stats(data->inode, NFSIOS_SERVERWRITTENBYTES, resp->count);
 
 #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
@@ -1196,7 +1196,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
 				argp->stable = NFS_FILE_SYNC;
 			}
 			nfs_restart_rpc(task, server->nfs_client);
-			return -EAGAIN;
+			return;
 		}
 		if (time_before(complain, jiffies)) {
 			printk(KERN_WARNING
@@ -1207,7 +1207,7 @@ int nfs_writeback_done(struct rpc_task *task, struct nfs_write_data *data)
 		/* Can't do anything about it except throw an error. */
 		task->tk_status = -EIO;
 	}
-	return 0;
+	return;
 }
 
 

include/linux/nfs_fs.h

@@ -501,7 +501,7 @@ extern int  nfs_writepage(struct page *page, struct writeback_control *wbc);
 extern int  nfs_writepages(struct address_space *, struct writeback_control *);
 extern int  nfs_flush_incompatible(struct file *file, struct page *page);
 extern int  nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
-extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
+extern void nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
 
 /*
  * Try to write back everything synchronously (but check the