@@ -4662,10 +4662,14 @@ static unsigned int
nfs4_init_uniform_client_string(const struct nfs_client *clp,
char *buf, size_t len)
{
- char *nodename = clp->cl_rpcclient->cl_nodename;
+ const char *nodename = clp->cl_rpcclient->cl_nodename;
if (nfs4_client_id_uniquifier[0] != '\0')
- nodename = nfs4_client_id_uniquifier;
+ return scnprintf(buf, len, "Linux NFSv%u.%u %s/%s",
+ clp->rpc_ops->version,
+ clp->cl_minorversion,
+ nfs4_client_id_uniquifier,
+ nodename);
return scnprintf(buf, len, "Linux NFSv%u.%u %s",
clp->rpc_ops->version, clp->cl_minorversion,
nodename);
Commit 6f2ea7f2a (NFS: Add nfs4_unique_id boot parameter) introduces a boot parameter that allows client administrators to set a string identifier for use by the EXCHANGE_ID and SETCLIENTID arguments in order to make them more globally unique. Unfortunately, that uniquifier is no longer globally unique in the presence of net namespaces, since each container expects to be able to set up their own lease when mounting a new NFSv4/4.1 partition. The fix is to add back in the container-specific hostname in addition to the unique id. Cc: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> --- fs/nfs/nfs4proc.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)