nfsd4: remove unused CHECK_FH flag

All users now pass this, so it's meaningless.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>

fs/nfsd/nfs4proc.c

@@ -519,7 +519,7 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	/* check stateid */
 	if ((status = nfs4_preprocess_stateid_op(&cstate->current_fh,
 				&read->rd_stateid,
-				CHECK_FH | RD_STATE, &read->rd_filp))) {
+				RD_STATE, &read->rd_filp))) {
 		dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
 		goto out;
 	}
@@ -651,7 +651,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
 		nfs4_lock_state();
 		status = nfs4_preprocess_stateid_op(&cstate->current_fh,
-			&setattr->sa_stateid, CHECK_FH | WR_STATE, NULL);
+			&setattr->sa_stateid, WR_STATE, NULL);
 		nfs4_unlock_state();
 		if (status) {
 			dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
@@ -690,7 +690,7 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 	nfs4_lock_state();
 	status = nfs4_preprocess_stateid_op(&cstate->current_fh, stateid,
-					CHECK_FH | WR_STATE, &filp);
+					WR_STATE, &filp);
 	if (filp)
 		get_file(filp);
 	nfs4_unlock_state();

fs/nfsd/nfs4state.c

@@ -2091,7 +2091,7 @@ nfs4_preprocess_stateid_op(struct svc_fh *current_fh, stateid_t *stateid, int fl
 		stp = find_stateid(stateid, flags);
 		if (!stp)
 			goto out;
-		if ((flags & CHECK_FH) && nfs4_check_fh(current_fh, stp))
+		if (nfs4_check_fh(current_fh, stp))
 			goto out;
 		if (!stp->st_stateowner->so_confirmed)
 			goto out;

include/linux/nfsd/state.h

@@ -256,7 +256,6 @@ struct nfs4_stateid {
 };
 
 /* flags for preprocess_seqid_op() */
-#define CHECK_FH                0x00000001
 #define CONFIRM                 0x00000002
 #define OPEN_STATE              0x00000004
 #define LOCK_STATE              0x00000008