From cc27e0d407021a278d08c1952f5af4ab38c49eda Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Wed, 21 Mar 2012 09:52:09 -0400
Subject: [PATCH] nfsd: don't allow legacy client tracker init for anything but
init_net
This code isn't set up for containers, so don't allow it to be
used for anything but init_net.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
fs/nfsd/nfs4recover.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 6f13281635ba2..21b53d57432cf 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -416,6 +416,13 @@ nfsd4_load_reboot_recovery_data(struct net *net)
{
int status;
+ /* XXX: The legacy code won't work in a container */
+ if (net != &init_net) {
+ WARN(1, KERN_ERR "NFSD: attempt to initialize legacy client "
+ "tracking in a container!\n");
+ return -EINVAL;
+ }
+
nfs4_lock_state();
status = nfsd4_init_recdir();
if (!status)
--
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