Commit 52442f9b authored by Benjamin Coddington's avatar Benjamin Coddington Committed by Trond Myklebust

NFS4: Avoid migration loops

If a server returns itself as a location while migrating, the client may
end up getting stuck attempting to migrate twice to the same server.  Catch
this by checking if the nfs_client found is the same as the existing
client.  For the other two callers to nfs4_set_client, the nfs_client will
always be ERR_PTR(-EINVAL).
Signed-off-by: default avatarBenjamin Coddington <bcodding@redhat.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent 3dc14735
......@@ -817,6 +817,11 @@ static int nfs4_set_client(struct nfs_server *server,
goto error;
}
if (server->nfs_client == clp) {
error = -ELOOP;
goto error;
}
/*
* Query for the lease time on clientid setup or renewal
*
......
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