4 files changed, 7 insertions, 21 deletions

diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 0fffe1c24cec..eb67953452bb 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -229,19 +229,6 @@ int autofs4_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);
 int autofs4_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
 void autofs4_catatonic_mode(struct autofs_sb_info *);
 
-static inline int autofs4_follow_mount(struct path *path)
-{
-        int res = 0;
-
-        while (d_mountpoint(path->dentry)) {
-                int followed = follow_down(path);
-                if (!followed)
-                        break;
-                res = 1;
-        }
-        return res;
-}
-
 static inline u32 autofs4_get_dev(struct autofs_sb_info *sbi)
 {
         return new_encode_dev(sbi->sb->s_dev);
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index eff9a419469a..1442da4860e5 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -551,7 +551,7 @@ static int autofs_dev_ioctl_ismountpoint(struct file *fp,
 
                 err = have_submounts(path.dentry);
 
-                if (follow_down(&path))
+                if (follow_down_one(&path))
                         magic = path.mnt->mnt_sb->s_magic;
         }
 
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index cc1d01365905..6a930b90d389 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -56,7 +56,7 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
 
         path_get(&path);
 
-        if (!follow_down(&path))
+        if (!follow_down_one(&path))
                 goto done;
 
         if (is_autofs4_dentry(path.dentry)) {
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 651e4ef563b1..20225636a4e9 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -234,7 +234,7 @@ static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
                 nd->flags);
         /*
          * For an expire of a covered direct or offset mount we need
-         * to break out of follow_down() at the autofs mount trigger
+         * to break out of follow_down_one() at the autofs mount trigger
          * (d_mounted--), so we can see the expiring flag, and manage
          * the blocking and following here until the expire is completed.
          */
@@ -243,7 +243,7 @@ static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
                 if (ino->flags & AUTOFS_INF_EXPIRING) {
                         spin_unlock(&sbi->fs_lock);
                         /* Follow down to our covering mount. */
-                        if (!follow_down(&nd->path))
+                        if (!follow_down_one(&nd->path))
                                 goto done;
                         goto follow;
                 }
@@ -292,11 +292,10 @@ follow:
          * multi-mount with no root offset so we don't need
          * to follow it.
          */
-        if (d_mountpoint(dentry)) {
-                if (!autofs4_follow_mount(&nd->path)) {
-                        status = -ENOENT;
+        if (d_managed(dentry)) {
+                status = follow_down(&nd->path, false);
+                if (status < 0)
                         goto out_error;
-                }
         }
 
 done: