From patchwork Thu Nov 8 13:01:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 10674141 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7BBF318FD for ; Thu, 8 Nov 2018 13:01:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6C94F2D248 for ; Thu, 8 Nov 2018 13:01:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6B1E92D297; Thu, 8 Nov 2018 13:01:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9434F2D3D5 for ; Thu, 8 Nov 2018 13:01:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726811AbeKHWgn (ORCPT ); Thu, 8 Nov 2018 17:36:43 -0500 Received: from mx2.suse.de ([195.135.220.15]:33998 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726848AbeKHWgn (ORCPT ); Thu, 8 Nov 2018 17:36:43 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id D66A1B040; Thu, 8 Nov 2018 13:01:18 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 155101E09A1; Thu, 8 Nov 2018 14:01:18 +0100 (CET) From: Jan Kara To: Jens Axboe Cc: , Tetsuo Handa , Jan Kara Subject: [PATCH 01/16] block/loop: Don't grab "struct file" for vfs_getattr() operation. Date: Thu, 8 Nov 2018 14:01:01 +0100 Message-Id: <20181108130116.12140-2-jack@suse.cz> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20181108130116.12140-1-jack@suse.cz> References: <20181108130116.12140-1-jack@suse.cz> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Tetsuo Handa vfs_getattr() needs "struct path" rather than "struct file". Let's use path_get()/path_put() rather than get_file()/fput(). Signed-off-by: Tetsuo Handa Reviewed-by: Jan Kara Signed-off-by: Jan Kara --- drivers/block/loop.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index cb0cc8685076..a29ef169f360 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1204,7 +1204,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info) static int loop_get_status(struct loop_device *lo, struct loop_info64 *info) { - struct file *file; + struct path path; struct kstat stat; int ret; @@ -1229,16 +1229,16 @@ loop_get_status(struct loop_device *lo, struct loop_info64 *info) } /* Drop lo_ctl_mutex while we call into the filesystem. */ - file = get_file(lo->lo_backing_file); + path = lo->lo_backing_file->f_path; + path_get(&path); mutex_unlock(&lo->lo_ctl_mutex); - ret = vfs_getattr(&file->f_path, &stat, STATX_INO, - AT_STATX_SYNC_AS_STAT); + ret = vfs_getattr(&path, &stat, STATX_INO, AT_STATX_SYNC_AS_STAT); if (!ret) { info->lo_device = huge_encode_dev(stat.dev); info->lo_inode = stat.ino; info->lo_rdevice = huge_encode_dev(stat.rdev); } - fput(file); + path_put(&path); return ret; }