Use path_put() in a few places instead of {mnt,d}put()

Use path_put() in a few places instead of {mnt,d}put()
Signed-off-by: NJan Blunck <jblunck@suse.de>
Signed-off-by: NAndreas Gruenbacher <agruen@suse.de>
Acked-by: NChristoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/afs/mntpt.c

@@ -235,8 +235,7 @@ static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
 	err = do_add_mount(newmnt, nd, MNT_SHRINKABLE, &afs_vfsmounts);
 	switch (err) {
 	case 0:
-		dput(nd->path.dentry);
-		mntput(nd->path.mnt);
+		path_put(&nd->path);
 		nd->path.mnt = newmnt;
 		nd->path.dentry = dget(newmnt->mnt_root);
 		schedule_delayed_work(&afs_mntpt_expiry_timer,

fs/namei.c

@@ -625,8 +625,7 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata
 		if (dentry->d_inode->i_op->put_link)
 			dentry->d_inode->i_op->put_link(dentry, nd, cookie);
 	}
-	dput(dentry);
-	mntput(path->mnt);
+	path_put(path);
 
 	return error;
 }
@@ -1033,8 +1032,7 @@ static int link_path_walk(const char *name, struct nameidata *nd)
 		result = __link_path_walk(name, nd);
 	}
 
-	dput(save.path.dentry);
-	mntput(save.path.mnt);
+	path_put(&save.path);
 
 	return result;
 }
@@ -1056,8 +1054,7 @@ static int __emul_lookup_dentry(const char *name, struct nameidata *nd)
 
 	if (!nd->path.dentry->d_inode ||
 	    S_ISDIR(nd->path.dentry->d_inode->i_mode)) {
-		struct dentry *old_dentry = nd->path.dentry;
-		struct vfsmount *old_mnt = nd->path.mnt;
+		struct path old_path = nd->path;
 		struct qstr last = nd->last;
 		int last_type = nd->last_type;
 		struct fs_struct *fs = current->fs;
@@ -1073,14 +1070,12 @@ static int __emul_lookup_dentry(const char *name, struct nameidata *nd)
 		read_unlock(&fs->lock);
 		if (path_walk(name, nd) == 0) {
 			if (nd->path.dentry->d_inode) {
-				dput(old_dentry);
-				mntput(old_mnt);
+				path_put(&old_path);
 				return 1;
 			}
 			path_put(&nd->path);
 		}
-		nd->path.dentry = old_dentry;
-		nd->path.mnt = old_mnt;
+		nd->path = old_path;
 		nd->last = last;
 		nd->last_type = last_type;
 	}