[PATCH] Set PG_uptodate in nfs_writepage_sync()

A patch by Charles Lever (Charles.Lever@netapp.com) that ensures the
PG_uptodate bit gets set if an entire page gets written by
nfs_writepage_sync().

fs/nfs/write.c

@@ -808,8 +808,15 @@ nfs_updatepage(struct file *file, struct page *page, unsigned int offset, unsign
 	 * If wsize is smaller than page size, update and write
 	 * page synchronously.
 	 */
-	if (NFS_SERVER(inode)->wsize < PAGE_CACHE_SIZE || IS_SYNC(inode))
-		return nfs_writepage_sync(file, inode, page, offset, count);
+	if (NFS_SERVER(inode)->wsize < PAGE_CACHE_SIZE || IS_SYNC(inode)) {
+		status = nfs_writepage_sync(file, inode, page, offset, count);
+		if (status > 0) {
+			if (offset == 0 && status == PAGE_CACHE_SIZE)
+				SetPageUptodate(page);
+			return 0;
+		}
+		return status;
+	}
 
 	/*
 	 * Try to find an NFS request corresponding to this page