From patchwork Tue Sep 15 15:18:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11777041 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 7B917159A for ; Tue, 15 Sep 2020 15:25:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 57BC520720 for ; Tue, 15 Sep 2020 15:25:27 +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="JTvp10HX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727438AbgIOPXv (ORCPT ); Tue, 15 Sep 2020 11:23:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727430AbgIOPXB (ORCPT ); Tue, 15 Sep 2020 11:23:01 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CFE67C061788; Tue, 15 Sep 2020 08:23:00 -0700 (PDT) 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=bCMdefcbVNK1n/7kExQP4kHzaTJA1/jyiOiumdm05Vg=; b=JTvp10HXp5J69jy2CuzD9GhhpT DDjNKmn/2H6kDp88475wME6gUvl9+f3wRoFLOTLRz3S4MzOpFpW99mnsebG7jG0lF/epV73VMWLqs 6rlHBaaETOo2D12OSMO42xSsZAtbPpnIpfQGgYc5CZNFbZc5g0o1DD23sYsplsEAglwIWPIKCSkDV 9qeGpB7rTwZY6t8/erSjBJX3LtFIVUKogeW/OSS8IvTrBg/ORZHDm1hot46XBw9bDYewalYVHh9GO DVyg8qV8FRjz+bfG4e7Ggq7zdO8L3OQ3rEJ2SUfMaq/4+eetzjdH995hp/8iQYQ0gmf3EwHmRUTet kYO6k9pQ==; Received: from 089144214092.atnat0023.highway.a1.net ([89.144.214.92] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kICnE-0001A7-PD; Tue, 15 Sep 2020 15:22:53 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Song Liu , Hans de Goede , Richard Weinberger , Minchan Kim , Johannes Thumshirn , 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, Johannes Thumshirn Subject: [PATCH 01/12] fs: remove the unused SB_I_MULTIROOT flag Date: Tue, 15 Sep 2020 17:18:18 +0200 Message-Id: <20200915151829.1767176-2-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200915151829.1767176-1-hch@lst.de> References: <20200915151829.1767176-1-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 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org The last user of SB_I_MULTIROOT is disappeared with commit f2aedb713c28 ("NFS: Add fs_context support.") Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn --- 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 e99e2a9da0f7de..f1eb8ccd2be958 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 7519ae003a082c..fbd74df5ce5f34 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1385,7 +1385,6 @@ 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 */