From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 12 Dec 2007 00:01:45 +0000 (-0500)
Subject: NFS: Fix NFS mountpoint crossing...
X-Git-Tag: firefly_0821_release~23992^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4584f520e1f773082ef44ff4f8969a5d992b16ec;p=firefly-linux-kernel-4.4.55.git

NFS: Fix NFS mountpoint crossing...

The check that was added to nfs_xdev_get_sb() to work around broken
servers, works fine for NFSv2, but causes mountpoint crossing on NFSv3 to
always return ESTALE.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 2426e713b77f..ea929207f274 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1475,7 +1475,7 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
 		error = PTR_ERR(mntroot);
 		goto error_splat_super;
 	}
-	if (mntroot->d_inode->i_op != &nfs_dir_inode_operations) {
+	if (mntroot->d_inode->i_op != server->nfs_client->rpc_ops->dir_inode_ops) {
 		dput(mntroot);
 		error = -ESTALE;
 		goto error_splat_super;