nfs41: increment_{open,lock}_seqid

Unlike minorversion0, in nfsv4.1 the open and lock seqids need
not be incremented by the client and should always be set to zero.

This is implemented using a new nfs_rpc_ops methods -
increment_open_seqid and increment_lock_seqid

Signed-off-by: Rahul Iyer <iyer@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: check for session not minorversion]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 2cc0aca96eb2..2cfca9929c9a 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -742,12 +742,14 @@ static void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
 
 void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid)
 {
-        if (status == -NFS4ERR_BAD_SEQID) {
-                struct nfs4_state_owner *sp = container_of(seqid->sequence,
-                                struct nfs4_state_owner, so_seqid);
+        struct nfs4_state_owner *sp = container_of(seqid->sequence,
+                                        struct nfs4_state_owner, so_seqid);
+        struct nfs_server *server = sp->so_server;
+
+        if (status == -NFS4ERR_BAD_SEQID)
                 nfs4_drop_state_owner(sp);
-        }
-        nfs_increment_seqid(status, seqid);
+        if (!nfs4_has_session(server->nfs_client))
+                nfs_increment_seqid(status, seqid);
 }
 
 /*