From bab77ebf51e3902f608ecf08c9d34a0a52ac35a9 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 18 Apr 2009 03:26:48 -0400
Subject: [PATCH] switch follow_up() to struct path

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/autofs4/dev-ioctl.c |  2 +-
 fs/namei.c             | 16 ++++++++--------
 fs/nfsd/vfs.c          |  2 +-
 include/linux/namei.h  |  2 +-
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index f71dac9986f..670407576b2 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -212,7 +212,7 @@ static int find_autofs_mount(const char *pathname,
 				err = 0;
 			}
 		}
-		if (!follow_up(&path.mnt, &path.dentry))
+		if (!follow_up(&path))
 			break;
 	}
 	path_put(&path);
diff --git a/fs/namei.c b/fs/namei.c
index 4379ef98970..8c1f48ae68e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -675,23 +675,23 @@ loop:
 	return err;
 }
 
-int follow_up(struct vfsmount **mnt, struct dentry **dentry)
+int follow_up(struct path *path)
 {
 	struct vfsmount *parent;
 	struct dentry *mountpoint;
 	spin_lock(&vfsmount_lock);
-	parent=(*mnt)->mnt_parent;
-	if (parent == *mnt) {
+	parent = path->mnt->mnt_parent;
+	if (parent == path->mnt) {
 		spin_unlock(&vfsmount_lock);
 		return 0;
 	}
 	mntget(parent);
-	mountpoint=dget((*mnt)->mnt_mountpoint);
+	mountpoint = dget(path->mnt->mnt_mountpoint);
 	spin_unlock(&vfsmount_lock);
-	dput(*dentry);
-	*dentry = mountpoint;
-	mntput(*mnt);
-	*mnt = parent;
+	dput(path->dentry);
+	path->dentry = mountpoint;
+	mntput(path->mnt);
+	path->mnt = parent;
 	return 1;
 }
 
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 9f1ea3127f5..7b2b3f77532 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -173,7 +173,7 @@ nfsd_lookup_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp,
 					    .dentry = dget(dparent)};
 
 			while (path.dentry == path.mnt->mnt_root &&
-			       follow_up(&path.mnt, &path.dentry))
+			       follow_up(&path))
 				;
 			dp = dget_parent(path.dentry);
 			dput(path.dentry);
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 325dd3ad39a..9cd5a717be3 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -79,7 +79,7 @@ extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
 extern struct dentry *lookup_one_noperm(const char *, struct dentry *);
 
 extern int follow_down(struct vfsmount **, struct dentry **);
-extern int follow_up(struct vfsmount **, struct dentry **);
+extern int follow_up(struct path *);
 
 extern struct dentry *lock_rename(struct dentry *, struct dentry *);
 extern void unlock_rename(struct dentry *, struct dentry *);