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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Song Liu <song@kernel.org>, Hans de Goede <hdegoede@redhat.com>,
	Coly Li <colyli@suse.de>, Richard Weinberger <richard@nod.at>,
	Minchan Kim <minchan@kernel.org>,
	Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
	Justin Sanders <justin@coraid.com>,
	linux-mtd@lists.infradead.org, dm-devel@redhat.com,
	linux-block@vger.kernel.org, linux-bcache@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,
	Jan Kara <jack@suse.cz>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>
Subject: [PATCH 01/13] fs: remove the unused SB_I_MULTIROOT flag
Date: Mon, 21 Sep 2020 10:07:22 +0200
Message-ID: <20200921080734.452759-2-hch@lst.de> (raw)
In-Reply-To: <20200921080734.452759-1-hch@lst.de>

The last user of SB_I_MULTIROOT is disappeared with commit f2aedb713c28
("NFS: Add fs_context support.")

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 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 */
-- 
2.28.0

  reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21  8:07 bdi cleanups v6 Christoph Hellwig
2020-09-21  8:07 ` Christoph Hellwig [this message]
2020-09-21  8:07 ` [PATCH 02/13] drbd: remove dead code in device_to_statistics Christoph Hellwig
2020-09-21  8:07 ` [PATCH 03/13] bcache: inherit the optimal I/O size Christoph Hellwig
2020-09-21  9:54   ` Coly Li
     [not found]     ` <b547a1b6-ab03-0520-012d-86d112c83d92-l3A5Bk7waGM@public.gmane.org>
2020-09-21 14:00       ` Christoph Hellwig
2020-09-21 15:09         ` Coly Li
2020-09-21 18:18           ` Christoph Hellwig
     [not found]   ` <20200921080734.452759-4-hch-jcswGhMUV9g@public.gmane.org>
2020-09-22  8:44     ` Jan Kara
2020-09-22  9:39   ` Coly Li
2020-09-21  8:07 ` [PATCH 04/13] aoe: set an " Christoph Hellwig
2020-09-22  8:45   ` Jan Kara
2020-09-21  8:07 ` [PATCH 05/13] bdi: initialize ->ra_pages and ->io_pages in bdi_init Christoph Hellwig
     [not found]   ` <20200921080734.452759-6-hch-jcswGhMUV9g@public.gmane.org>
2020-09-22  8:49     ` Jan Kara
2020-09-23 15:16       ` Christoph Hellwig
     [not found] ` <20200921080734.452759-1-hch-jcswGhMUV9g@public.gmane.org>
2020-09-21  8:07   ` [PATCH 06/13] md: update the optimal I/O size on reshape Christoph Hellwig
2020-09-21  8:07 ` [PATCH 07/13] block: lift setting the readahead size into the block layer Christoph Hellwig
2020-09-22  9:13   ` Jan Kara
2020-09-22  9:51   ` Coly Li
2020-09-21  8:07 ` [PATCH 08/13] bdi: remove BDI_CAP_CGROUP_WRITEBACK Christoph Hellwig
2020-09-21  8:07 ` [PATCH 09/13] bdi: remove BDI_CAP_SYNCHRONOUS_IO Christoph Hellwig
2020-09-21  8:07 ` [PATCH 10/13] mm: use SWP_SYNCHRONOUS_IO more intelligently Christoph Hellwig
2020-09-21  8:07 ` [PATCH 11/13] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag Christoph Hellwig
2020-09-21  8:07 ` [PATCH 12/13] bdi: invert BDI_CAP_NO_ACCT_WB Christoph Hellwig
2020-09-21  8:07 ` [PATCH 13/13] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag Christoph Hellwig
2020-09-24  6:51 bdi cleanups v7 Christoph Hellwig
2020-09-24  6:51 ` [PATCH 01/13] fs: remove the unused SB_I_MULTIROOT flag Christoph Hellwig

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