nfsd: Remove nfs4_lock_state(): nfsd4_open and nfsd4_open_confirm

Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs4proc.c

@@ -385,8 +385,6 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	if (nfsd4_has_session(cstate))
 		copy_clientid(&open->op_clientid, cstate->session);
 
-	nfs4_lock_state();
-
 	/* check seqid for replay. set nfs4_owner */
 	resp = rqstp->rq_resp;
 	status = nfsd4_process_open1(&resp->cstate, open, nn);
@@ -471,7 +469,6 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	}
 	nfsd4_cleanup_open_state(cstate, open, status);
 	nfsd4_bump_seqid(cstate, status);
-	nfs4_unlock_state();
 	return status;
 }
 

fs/nfsd/nfs4state.c

@@ -4007,9 +4007,6 @@ static void nfsd4_deleg_xgrade_none_ext(struct nfsd4_open *open,
 	 */
 }
 
-/*
- * called with nfs4_lock_state() held.
- */
 __be32
 nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open)
 {
@@ -4690,8 +4687,6 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	if (status)
 		return status;
 
-	nfs4_lock_state();
-
 	status = nfs4_preprocess_seqid_op(cstate,
 					oc->oc_seqid, &oc->oc_req_stateid,
 					NFS4_OPEN_STID, &stp, nn);
@@ -4785,7 +4780,6 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
 	nfs4_put_stid(&stp->st_stid);
 out:
 	nfsd4_bump_seqid(cstate, status);
-	nfs4_unlock_state();
 	return status;
 }