linux-kernel - [PATCH v6 05/27] nfs: don't bother setting/restoring export_path around do_nfs_root

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Message-Id: <20191210123115.1655-6-smayhew@redhat.com>
Date:   Tue, 10 Dec 2019 07:30:53 -0500
From:   Scott Mayhew <smayhew@...hat.com>
To:     anna.schumaker@...app.com, trond.myklebust@...merspace.com
Cc:     dhowells@...hat.com, viro@...iv.linux.org.uk,
        linux-nfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: [PATCH v6 05/27] nfs: don't bother setting/restoring export_path around do_nfs_root_mount()

From: Al Viro <viro@...iv.linux.org.uk>

nothing in it will be looking at that thing anyway

Reviewed-by: David Howells <dhowells@...hat.com>
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 fs/nfs/nfs4super.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index 54dbb4561ccc..8146edf4ce3a 100644
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -233,12 +233,10 @@ struct dentry *nfs4_try_mount(int flags, const char *dev_name,
 	dfprintk(MOUNT, "--> nfs4_try_mount()\n");
 
 	export_path = data->nfs_server.export_path;
-	data->nfs_server.export_path = "/";
 	root_mnt = nfs_do_root_mount(
 			nfs4_create_server(mount_info, &nfs_v4),
 			flags, mount_info,
 			data->nfs_server.hostname);
-	data->nfs_server.export_path = export_path;
 
 	res = nfs_follow_remote_path(root_mnt, export_path);
 
@@ -271,12 +269,10 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
 		return ERR_PTR(-ENOMEM);
 
 	export_path = data->mnt_path;
-	data->mnt_path = "/";
 	root_mnt = nfs_do_root_mount(
 			nfs4_create_referral_server(mount_info.cloned,
 						    mount_info.mntfh),
 			flags, &mount_info, data->hostname);
-	data->mnt_path = export_path;
 
 	res = nfs_follow_remote_path(root_mnt, export_path);
 	dprintk("<-- nfs4_referral_mount() = %d%s\n",
-- 
2.17.2