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Subject[PATCH 01/12] fs: remove the unused SB_I_MULTIROOT flag
Date
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: 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
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