We should be opening this directory RDONLY, not RDWR.
Thanks to Christoph Hellwig for the bug report.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 
        nfs4_save_user(&uid, &gid);
 
-       filp = dentry_open(dget(dir), mntget(rec_dir.mnt),
-                       O_RDWR);
+       filp = dentry_open(dget(dir), mntget(rec_dir.mnt), O_RDONLY);
        status = PTR_ERR(filp);
        if (IS_ERR(filp))
                goto out;