From patchwork Tue Jul 18 12:39:08 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikolay Borisov X-Patchwork-Id: 9848277 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CBD9D600CC for ; Tue, 18 Jul 2017 12:39:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BE38E28550 for ; Tue, 18 Jul 2017 12:39:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B2F6128575; Tue, 18 Jul 2017 12:39:16 +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=-6.9 required=2.0 tests=BAYES_00,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 A1D9828550 for ; Tue, 18 Jul 2017 12:39:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751386AbdGRMjN (ORCPT ); Tue, 18 Jul 2017 08:39:13 -0400 Received: from mx2.suse.de ([195.135.220.15]:36304 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751336AbdGRMjM (ORCPT ); Tue, 18 Jul 2017 08:39:12 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 9005FABB8 for ; Tue, 18 Jul 2017 12:39:11 +0000 (UTC) From: Nikolay Borisov To: dsterba@suse.cz Cc: linux-btrfs@vger.kernel.org, Nikolay Borisov Subject: [PATCH] btrfs: Use explicit round_down macro in btrfs resize ioctl handler Date: Tue, 18 Jul 2017 15:39:08 +0300 Message-Id: <1500381548-10168-1-git-send-email-nborisov@suse.com> X-Mailer: git-send-email 2.7.4 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP No functional changes, just make the code more self-explanatory. Signed-off-by: Nikolay Borisov Reviewed-by: David Sterba --- fs/btrfs/ioctl.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index fa1b78cf25f6..5101515b4a14 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1600,8 +1600,7 @@ static noinline int btrfs_ioctl_resize(struct file *file, goto out_free; } - new_size = div_u64(new_size, fs_info->sectorsize); - new_size *= fs_info->sectorsize; + new_size = round_down(new_size, fs_info->sectorsize); btrfs_info_in_rcu(fs_info, "new size for %s is %llu", rcu_str_deref(device->name), new_size);