From: Andrew Morton <akpm@linux-foundation.org>

Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/nfsd/vfs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN fs/nfsd/vfs.c~r-o-bind-mounts-check-mnt-instead-of-superblock-directly-fix-2 fs/nfsd/vfs.c
--- a/fs/nfsd/vfs.c~r-o-bind-mounts-check-mnt-instead-of-superblock-directly-fix-2
+++ a/fs/nfsd/vfs.c
@@ -1886,7 +1886,7 @@ nfsd_permission(struct svc_rqst *rqstp, 
 	if (!(acc & MAY_LOCAL_ACCESS))
 		if (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC)) {
 			if (exp_rdonly(rqstp, exp) ||
-			    __mnt_is_readonly(exp->ex_mnt))
+			    __mnt_is_readonly(exp->ex_path.mnt))
 				return nfserr_rofs;
 			if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode))
 				return nfserr_perm;
_