From patchwork Mon Jul 20 07:51:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11673087 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7554913A4 for ; Mon, 20 Jul 2020 07:52:06 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4257B20674 for ; Mon, 20 Jul 2020 07:52:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="flVROLQu" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4257B20674 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6691A6B0003; Mon, 20 Jul 2020 03:52:05 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 61A236B0005; Mon, 20 Jul 2020 03:52:05 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 508336B0006; Mon, 20 Jul 2020 03:52:05 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0250.hostedemail.com [216.40.44.250]) by kanga.kvack.org (Postfix) with ESMTP id 379EE6B0003 for ; Mon, 20 Jul 2020 03:52:05 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id D44961807B31D for ; Mon, 20 Jul 2020 07:52:04 +0000 (UTC) X-FDA: 77057685768.27.note64_4407e8526f23 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin27.hostedemail.com (Postfix) with ESMTP id A682C178D28 for ; Mon, 20 Jul 2020 07:52:04 +0000 (UTC) X-Spam-Summary: 1,0,0,1bb53e3d5ea0e4ea,d41d8cd98f00b204,batv+d9f98309abae8ab29895+6175+infradead.org+hch@casper.srs.infradead.org,,RULES_HIT:41:355:379:541:800:960:988:989:1260:1311:1314:1345:1359:1437:1515:1534:1541:1711:1730:1747:1777:1792:2198:2199:2393:2559:2562:3138:3139:3140:3141:3142:3352:3865:3867:3868:4321:4605:5007:6261:6653:6742:7903:10004:10044:11658:11914:12043:12160:12296:12297:12517:12519:12555:12895:12986:13069:13311:13357:13894:14096:14181:14384:14394:14721:21080:21451:21611:21627:21795:21990:30051:30054,0,RBL:90.155.50.34:@casper.srs.infradead.org:.lbl8.mailshell.net-64.201.201.201 62.14.15.100;04y89kk1qr4binzppzwz6h9xay9pdyp4kw7a3npfam99b3gx4zmhqgnt8wzi5zx.yux3pdhq841abh4ouqekosdzjs1xk44bk6hahqtfs5wohgwo1gej4khxk6t9gop.h-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: note64_4407e8526f23 X-Filterd-Recvd-Size: 3358 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf35.hostedemail.com (Postfix) with ESMTP for ; Mon, 20 Jul 2020 07:52:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=CuUaZG9Qhitrr+iOhUhgyWHM76MKMZjl3OX8RO552bE=; b=flVROLQubR6uF1pCvEN9P45yX8 5OLapfMKCH0fY2r35ViO2jMD0d4StlwWmgHdCrsXL7HSL44gfNJRb2hVc1XqgP4UwA7wccIEHL3o7 LxyAjWM5UEjl3VtB5ooa5L5xa8pASt6teZcxkL6m5Y0NO5F75MnjygFOIleuz9LwqjYbVsd+Ic722 BMaSQMfg9fPWIjfJs3NP+wah/dr3BLa8zbN8rg33h9tju4hfj61KvRciKJOnAIMoAW7W7oQ9zLeu+ dzMDoZv+isOyqu3IqtuWZrIeVd/D56WGbsd9+Tj+a8wrPCO4FD2P9xsKH32tkikbg9cegkxdWwvXq e/kaZwKQ==; Received: from [2001:4bb8:105:4a81:5185:88fc:94bb:f8bf] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jxQaU-0003zM-Ln; Mon, 20 Jul 2020 07:51:51 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Song Liu , Hans de Goede , Richard Weinberger , linux-mtd@lists.infradead.org, dm-devel@redhat.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com, linux-raid@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org Subject: [PATCH 01/14] fs: remove the unused SB_I_MULTIROOT flag Date: Mon, 20 Jul 2020 09:51:35 +0200 Message-Id: <20200720075148.172156-2-hch@lst.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200720075148.172156-1-hch@lst.de> References: <20200720075148.172156-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Queue-Id: A682C178D28 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Signed-off-by: Christoph Hellwig --- fs/namei.c | 4 ++-- include/linux/fs.h | 1 - 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 72d4219c93acb7..e9ff0d54a110a7 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -568,8 +568,8 @@ static bool path_connected(struct vfsmount *mnt, struct dentry *dentry) { struct super_block *sb = mnt->mnt_sb; - /* Bind mounts and multi-root filesystems can have disconnected paths */ - if (!(sb->s_iflags & SB_I_MULTIROOT) && (mnt->mnt_root == sb->s_root)) + /* Bind mounts can have disconnected paths */ + if (mnt->mnt_root == sb->s_root) return true; return is_subdir(dentry, mnt->mnt_root); diff --git a/include/linux/fs.h b/include/linux/fs.h index 1d7c4f7465d24c..613323008519ca 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1365,7 +1365,6 @@ extern int send_sigurg(struct fown_struct *fown); #define SB_I_CGROUPWB 0x00000001 /* cgroup-aware writeback enabled */ #define SB_I_NOEXEC 0x00000002 /* Ignore executables on this fs */ #define SB_I_NODEV 0x00000004 /* Ignore devices on this fs */ -#define SB_I_MULTIROOT 0x00000008 /* Multiple roots to the dentry tree */ /* sb->s_iflags to limit user namespace mounts */ #define SB_I_USERNS_VISIBLE 0x00000010 /* fstype already mounted */