switch follow_down()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 7 insertions, 8 deletions

diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 3077d8f16523..aa39ae83f019 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -48,19 +48,19 @@ static inline int autofs4_can_expire(struct dentry *dentry,
 static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
 {
         struct dentry *top = dentry;
+        struct path path = {.mnt = mnt, .dentry = dentry};
         int status = 1;
 
         DPRINTK("dentry %p %.*s",
                 dentry, (int)dentry->d_name.len, dentry->d_name.name);
 
-        mntget(mnt);
-        dget(dentry);
+        path_get(&path);
 
-        if (!follow_down(&mnt, &dentry))
+        if (!follow_down(&path))
                 goto done;
 
-        if (is_autofs4_dentry(dentry)) {
-                struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+        if (is_autofs4_dentry(path.dentry)) {
+                struct autofs_sb_info *sbi = autofs4_sbi(path.dentry->d_sb);
 
                 /* This is an autofs submount, we can't expire it */
                 if (autofs_type_indirect(sbi->type))
@@ -70,7 +70,7 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
                  * Otherwise it's an offset mount and we need to check
                  * if we can umount its mount, if there is one.
                  */
-                if (!d_mountpoint(dentry)) {
+                if (!d_mountpoint(path.dentry)) {
                         status = 0;
                         goto done;
                 }
@@ -86,8 +86,7 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
         status = 0;
 done:
         DPRINTK("returning = %d", status);
-        dput(dentry);
-        mntput(mnt);
+        path_put(&path);
         return status;
 }