From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752680AbdEPKfk (ORCPT ); Tue, 16 May 2017 06:35:40 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:44754 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751852AbdEPKfi (ORCPT ); Tue, 16 May 2017 06:35:38 -0400 From: "Mike Rapoport" To: Andrew Morton Cc: Andrea Arcangeli , linux-mm , lkml , Mike Rapoport Subject: [PATCH] userfaultfd: drop dead code Date: Tue, 16 May 2017 13:35:17 +0300 X-Mailer: git-send-email 2.7.4 X-TM-AS-GCONF: 00 x-cbid: 17051610-0012-0000-0000-0000052E85E1 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17051610-0013-0000-0000-0000187DDCE0 Message-Id: <1494930917-3134-1-git-send-email-rppt@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-05-16_03:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000 definitions=main-1705160089 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Calculation of start end end in __wake_userfault function are not used and can be removed. Signed-off-by: Mike Rapoport --- fs/userfaultfd.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index f7555fc..1446e9d 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -1101,11 +1101,6 @@ static ssize_t userfaultfd_read(struct file *file, char __user *buf, static void __wake_userfault(struct userfaultfd_ctx *ctx, struct userfaultfd_wake_range *range) { - unsigned long start, end; - - start = range->start; - end = range->start + range->len; - spin_lock(&ctx->fault_pending_wqh.lock); /* wake all in the range and autoremove */ if (waitqueue_active(&ctx->fault_pending_wqh)) -- 2.7.4