nfsd41: enforce NFS4ERR_SEQUENCE_POS operation order rules for minorversion != 0 only.

Signed-off-by: Andy Adamson<andros@netapp.com>
[nfsd41: do not verify nfserr_sequence_pos for minorversion 0]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 24b6e0593184..9243dca3576c 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1047,10 +1047,14 @@ nfsd4_sequence(struct svc_rqst *rqstp,
                struct nfsd4_compound_state *cstate,
                struct nfsd4_sequence *seq)
 {
+        struct nfsd4_compoundres *resp = rqstp->rq_resp;
         struct nfsd4_session *session;
         struct nfsd4_slot *slot;
         int status;
 
+        if (resp->opcnt != 1)
+                return nfserr_sequence_pos;
+
         spin_lock(&sessionid_lock);
         status = nfserr_badsession;
         session = find_in_sessionid_hashtbl(&seq->sessionid);