X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fnfsd%2Fnfs4state.c;h=31673cd251c3c2936b99e566a34773f5a0dce0c1;hb=dafdec746f8c468bebf6b99f32a392ee6c8d0212;hp=3f559700788f1603a60840ce7bfc3b20e857fd48;hpb=e8b495fe09bc793ae26774e7b2667f7f658d56e2;p=linux-2.6-omap-h63xx.git

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3f559700788..31673cd251c 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -358,9 +358,22 @@ alloc_client(struct xdr_netobj name)
 	return clp;
 }
 
+static void
+shutdown_callback_client(struct nfs4_client *clp)
+{
+	struct rpc_clnt *clnt = clp->cl_callback.cb_client;
+
+	/* shutdown rpc client, ending any outstanding recall rpcs */
+	if (clnt) {
+		clp->cl_callback.cb_client = NULL;
+		rpc_shutdown_client(clnt);
+	}
+}
+
 static inline void
 free_client(struct nfs4_client *clp)
 {
+	shutdown_callback_client(clp);
 	if (clp->cl_cred.cr_group_info)
 		put_group_info(clp->cl_cred.cr_group_info);
 	kfree(clp->cl_name.data);
@@ -374,18 +387,6 @@ put_nfs4_client(struct nfs4_client *clp)
 		free_client(clp);
 }
 
-static void
-shutdown_callback_client(struct nfs4_client *clp)
-{
-	struct rpc_clnt *clnt = clp->cl_callback.cb_client;
-
-	/* shutdown rpc client, ending any outstanding recall rpcs */
-	if (clnt) {
-		clp->cl_callback.cb_client = NULL;
-		rpc_shutdown_client(clnt);
-	}
-}
-
 static void
 expire_client(struct nfs4_client *clp)
 {
@@ -396,8 +397,6 @@ expire_client(struct nfs4_client *clp)
 	dprintk("NFSD: expire_client cl_count %d\n",
 	                    atomic_read(&clp->cl_count));
 
-	shutdown_callback_client(clp);
-
 	INIT_LIST_HEAD(&reaplist);
 	spin_lock(&recall_lock);
 	while (!list_empty(&clp->cl_delegations)) {
@@ -462,26 +461,28 @@ copy_cred(struct svc_cred *target, struct svc_cred *source) {
 }
 
 static inline int
-same_name(const char *n1, const char *n2) {
+same_name(const char *n1, const char *n2)
+{
 	return 0 == memcmp(n1, n2, HEXDIR_LEN);
 }
 
 static int
-cmp_verf(nfs4_verifier *v1, nfs4_verifier *v2) {
-	return(!memcmp(v1->data,v2->data,sizeof(v1->data)));
+same_verf(nfs4_verifier *v1, nfs4_verifier *v2)
+{
+	return 0 == memcmp(v1->data, v2->data, sizeof(v1->data));
 }
 
 static int
-cmp_clid(clientid_t * cl1, clientid_t * cl2) {
-	return((cl1->cl_boot == cl2->cl_boot) &&
-	   	(cl1->cl_id == cl2->cl_id));
+same_clid(clientid_t *cl1, clientid_t *cl2)
+{
+	return (cl1->cl_boot == cl2->cl_boot) && (cl1->cl_id == cl2->cl_id);
 }
 
 /* XXX what about NGROUP */
 static int
-cmp_creds(struct svc_cred *cr1, struct svc_cred *cr2){
-	return(cr1->cr_uid == cr2->cr_uid);
-
+same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
+{
+	return cr1->cr_uid == cr2->cr_uid;
 }
 
 static void
@@ -507,7 +508,7 @@ check_name(struct xdr_netobj name) {
 	if (name.len == 0) 
 		return 0;
 	if (name.len > NFS4_OPAQUE_LIMIT) {
-		printk("NFSD: check_name: name too long(%d)!\n", name.len);
+		dprintk("NFSD: check_name: name too long(%d)!\n", name.len);
 		return 0;
 	}
 	return 1;
@@ -546,7 +547,7 @@ find_confirmed_client(clientid_t *clid)
 	unsigned int idhashval = clientid_hashval(clid->cl_id);
 
 	list_for_each_entry(clp, &conf_id_hashtbl[idhashval], cl_idhash) {
-		if (cmp_clid(&clp->cl_clientid, clid))
+		if (same_clid(&clp->cl_clientid, clid))
 			return clp;
 	}
 	return NULL;
@@ -559,7 +560,7 @@ find_unconfirmed_client(clientid_t *clid)
 	unsigned int idhashval = clientid_hashval(clid->cl_id);
 
 	list_for_each_entry(clp, &unconf_id_hashtbl[idhashval], cl_idhash) {
-		if (cmp_clid(&clp->cl_clientid, clid))
+		if (same_clid(&clp->cl_clientid, clid))
 			return clp;
 	}
 	return NULL;
@@ -753,7 +754,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		 * or different ip_address
 		 */
 		status = nfserr_clid_inuse;
-		if (!cmp_creds(&conf->cl_cred, &rqstp->rq_cred)
+		if (!same_creds(&conf->cl_cred, &rqstp->rq_cred)
 				|| conf->cl_addr != sin->sin_addr.s_addr) {
 			dprintk("NFSD: setclientid: string in use by client"
 				"at %u.%u.%u.%u\n", NIPQUAD(conf->cl_addr));
@@ -772,14 +773,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		new = create_client(clname, dname);
 		if (new == NULL)
 			goto out;
-		copy_verf(new, &clverifier);
-		new->cl_addr = sin->sin_addr.s_addr;
-		copy_cred(&new->cl_cred,&rqstp->rq_cred);
 		gen_clid(new);
-		gen_confirm(new);
-		gen_callback(new, setclid);
-		add_to_unconfirmed(new, strhashval);
-	} else if (cmp_verf(&conf->cl_verifier, &clverifier)) {
+	} else if (same_verf(&conf->cl_verifier, &clverifier)) {
 		/*
 		 * CASE 1:
 		 * cl_name match, confirmed, principal match
@@ -804,13 +799,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		new = create_client(clname, dname);
 		if (new == NULL)
 			goto out;
-		copy_verf(new,&conf->cl_verifier);
-		new->cl_addr = sin->sin_addr.s_addr;
-		copy_cred(&new->cl_cred,&rqstp->rq_cred);
 		copy_clid(new, conf);
-		gen_confirm(new);
-		gen_callback(new, setclid);
-		add_to_unconfirmed(new,strhashval);
 	} else if (!unconf) {
 		/*
 		 * CASE 2:
@@ -823,14 +812,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		new = create_client(clname, dname);
 		if (new == NULL)
 			goto out;
-		copy_verf(new,&clverifier);
-		new->cl_addr = sin->sin_addr.s_addr;
-		copy_cred(&new->cl_cred,&rqstp->rq_cred);
 		gen_clid(new);
-		gen_confirm(new);
-		gen_callback(new, setclid);
-		add_to_unconfirmed(new, strhashval);
-	} else if (!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm)) {
+	} else if (!same_verf(&conf->cl_confirm, &unconf->cl_confirm)) {
 		/*	
 		 * CASE3:
 		 * confirmed found (name, principal match)
@@ -850,19 +833,19 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		new = create_client(clname, dname);
 		if (new == NULL)
 			goto out;
-		copy_verf(new,&clverifier);
-		new->cl_addr = sin->sin_addr.s_addr;
-		copy_cred(&new->cl_cred,&rqstp->rq_cred);
 		gen_clid(new);
-		gen_confirm(new);
-		gen_callback(new, setclid);
-		add_to_unconfirmed(new, strhashval);
 	} else {
 		/* No cases hit !!! */
 		status = nfserr_inval;
 		goto out;
 
 	}
+	copy_verf(new, &clverifier);
+	new->cl_addr = sin->sin_addr.s_addr;
+	copy_cred(&new->cl_cred, &rqstp->rq_cred);
+	gen_confirm(new);
+	gen_callback(new, setclid);
+	add_to_unconfirmed(new, strhashval);
 	setclid->se_clientid.cl_boot = new->cl_clientid.cl_boot;
 	setclid->se_clientid.cl_id = new->cl_clientid.cl_id;
 	memcpy(setclid->se_confirm.data, new->cl_confirm.data, sizeof(setclid->se_confirm.data));
@@ -910,16 +893,16 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 		goto out;
 
 	if ((conf && unconf) && 
-	    (cmp_verf(&unconf->cl_confirm, &confirm)) &&
-	    (cmp_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
+	    (same_verf(&unconf->cl_confirm, &confirm)) &&
+	    (same_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
 	    (same_name(conf->cl_recdir,unconf->cl_recdir))  &&
-	    (!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
+	    (!same_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
 		/* CASE 1:
 		* unconf record that matches input clientid and input confirm.
 		* conf record that matches input clientid.
 		* conf and unconf records match names, verifiers
 		*/
-		if (!cmp_creds(&conf->cl_cred, &unconf->cl_cred)) 
+		if (!same_creds(&conf->cl_cred, &unconf->cl_cred))
 			status = nfserr_clid_inuse;
 		else {
 			/* XXX: We just turn off callbacks until we can handle
@@ -933,7 +916,7 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 		}
 	} else if ((conf && !unconf) ||
 	    ((conf && unconf) && 
-	     (!cmp_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
+	     (!same_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
 	      !same_name(conf->cl_recdir, unconf->cl_recdir)))) {
 		/* CASE 2:
 		 * conf record that matches input clientid.
@@ -941,18 +924,18 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 		 * unconf->cl_name or unconf->cl_verifier don't match the
 		 * conf record.
 		 */
-		if (!cmp_creds(&conf->cl_cred,&rqstp->rq_cred))
+		if (!same_creds(&conf->cl_cred, &rqstp->rq_cred))
 			status = nfserr_clid_inuse;
 		else
 			status = nfs_ok;
 	} else if (!conf && unconf
-			&& cmp_verf(&unconf->cl_confirm, &confirm)) {
+			&& same_verf(&unconf->cl_confirm, &confirm)) {
 		/* CASE 3:
 		 * conf record not found.
 		 * unconf record found.
 		 * unconf->cl_confirm matches input confirm
 		 */
-		if (!cmp_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
+		if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
 			status = nfserr_clid_inuse;
 		} else {
 			unsigned int hash =
@@ -967,8 +950,8 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 			conf = unconf;
 			status = nfs_ok;
 		}
-	} else if ((!conf || (conf && !cmp_verf(&conf->cl_confirm, &confirm)))
-	    && (!unconf || (unconf && !cmp_verf(&unconf->cl_confirm,
+	} else if ((!conf || (conf && !same_verf(&conf->cl_confirm, &confirm)))
+	    && (!unconf || (unconf && !same_verf(&unconf->cl_confirm,
 				    				&confirm)))) {
 		/* CASE 4:
 		 * conf record not found, or if conf, conf->cl_confirm does not
@@ -1019,7 +1002,7 @@ nfsd4_free_slab(struct kmem_cache **slab)
 	*slab = NULL;
 }
 
-static void
+void
 nfsd4_free_slabs(void)
 {
 	nfsd4_free_slab(&stateowner_slab);
@@ -1207,10 +1190,12 @@ move_to_close_lru(struct nfs4_stateowner *sop)
 }
 
 static int
-cmp_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner, clientid_t *clid) {
-	return ((sop->so_owner.len == owner->len) && 
-	 !memcmp(sop->so_owner.data, owner->data, owner->len) && 
-	  (sop->so_client->cl_clientid.cl_id == clid->cl_id));
+same_owner_str(struct nfs4_stateowner *sop, struct xdr_netobj *owner,
+							clientid_t *clid)
+{
+	return (sop->so_owner.len == owner->len) &&
+		0 == memcmp(sop->so_owner.data, owner->data, owner->len) &&
+		(sop->so_client->cl_clientid.cl_id == clid->cl_id);
 }
 
 static struct nfs4_stateowner *
@@ -1219,7 +1204,7 @@ find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open)
 	struct nfs4_stateowner *so = NULL;
 
 	list_for_each_entry(so, &ownerstr_hashtbl[hashval], so_strhash) {
-		if (cmp_owner_str(so, &open->op_owner, &open->op_clientid))
+		if (same_owner_str(so, &open->op_owner, &open->op_clientid))
 			return so;
 	}
 	return NULL;
@@ -1360,6 +1345,7 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
 	 * lock) we know the server hasn't removed the lease yet, we know
 	 * it's safe to take a reference: */
 	atomic_inc(&dp->dl_count);
+	atomic_inc(&dp->dl_client->cl_count);
 
 	spin_lock(&recall_lock);
 	list_add_tail(&dp->dl_recall_lru, &del_recall_lru);
@@ -1368,8 +1354,12 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
 	/* only place dl_time is set. protected by lock_kernel*/
 	dp->dl_time = get_seconds();
 
-	/* XXX need to merge NFSD_LEASE_TIME with fs/locks.c:lease_break_time */
-	fl->fl_break_time = jiffies + NFSD_LEASE_TIME * HZ;
+	/*
+	 * We don't want the locks code to timeout the lease for us;
+	 * we'll remove it ourself if the delegation isn't returned
+	 * in time.
+	 */
+	fl->fl_break_time = 0;
 
 	t = kthread_run(do_recall, dp, "%s", "nfs4_cb_recall");
 	if (IS_ERR(t)) {
@@ -1378,6 +1368,7 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
 		printk(KERN_INFO "NFSD: Callback thread failed for "
 			"for client (clientid %08x/%08x)\n",
 			clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
+		put_nfs4_client(dp->dl_client);
 		nfs4_put_delegation(dp);
 	}
 }
@@ -1738,7 +1729,7 @@ out:
 	if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS
 			&& flag == NFS4_OPEN_DELEGATE_NONE
 			&& open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
-		printk("NFSD: WARNING: refusing delegation reclaim\n");
+		dprintk("NFSD: WARNING: refusing delegation reclaim\n");
 	open->op_delegate_type = flag;
 }
 
@@ -2044,7 +2035,7 @@ static inline int
 io_during_grace_disallowed(struct inode *inode, int flags)
 {
 	return nfs4_in_grace() && (flags & (RD_STATE | WR_STATE))
-		&& MANDATORY_LOCK(inode);
+		&& mandatory_lock(inode);
 }
 
 /*
@@ -2147,7 +2138,7 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
 	*sopp = NULL;
 
 	if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) {
-		printk("NFSD: preprocess_seqid_op: magic stateid!\n");
+		dprintk("NFSD: preprocess_seqid_op: magic stateid!\n");
 		return nfserr_bad_stateid;
 	}
 
@@ -2181,25 +2172,24 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
 		lkflg = setlkflg(lock->lk_type);
 
 		if (lock->lk_is_new) {
-                       if (!sop->so_is_open_owner)
-			       return nfserr_bad_stateid;
-                       if (!cmp_clid(&clp->cl_clientid, lockclid))
+			if (!sop->so_is_open_owner)
+				return nfserr_bad_stateid;
+			if (!same_clid(&clp->cl_clientid, lockclid))
 			       return nfserr_bad_stateid;
-                       /* stp is the open stateid */
-                       status = nfs4_check_openmode(stp, lkflg);
-                       if (status)
-			       return status;
-               } else {
-                       /* stp is the lock stateid */
-                       status = nfs4_check_openmode(stp->st_openstp, lkflg);
-                       if (status)
-			       return status;
+			/* stp is the open stateid */
+			status = nfs4_check_openmode(stp, lkflg);
+			if (status)
+				return status;
+		} else {
+			/* stp is the lock stateid */
+			status = nfs4_check_openmode(stp->st_openstp, lkflg);
+			if (status)
+				return status;
                }
-
 	}
 
 	if ((flags & CHECK_FH) && nfs4_check_fh(current_fh, stp)) {
-		printk("NFSD: preprocess_seqid_op: fh-stateid mismatch!\n");
+		dprintk("NFSD: preprocess_seqid_op: fh-stateid mismatch!\n");
 		return nfserr_bad_stateid;
 	}
 
@@ -2215,22 +2205,22 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
 		goto check_replay;
 
 	if (sop->so_confirmed && flags & CONFIRM) {
-		printk("NFSD: preprocess_seqid_op: expected"
+		dprintk("NFSD: preprocess_seqid_op: expected"
 				" unconfirmed stateowner!\n");
 		return nfserr_bad_stateid;
 	}
 	if (!sop->so_confirmed && !(flags & CONFIRM)) {
-		printk("NFSD: preprocess_seqid_op: stateowner not"
+		dprintk("NFSD: preprocess_seqid_op: stateowner not"
 				" confirmed yet!\n");
 		return nfserr_bad_stateid;
 	}
 	if (stateid->si_generation > stp->st_stateid.si_generation) {
-		printk("NFSD: preprocess_seqid_op: future stateid?!\n");
+		dprintk("NFSD: preprocess_seqid_op: future stateid?!\n");
 		return nfserr_bad_stateid;
 	}
 
 	if (stateid->si_generation < stp->st_stateid.si_generation) {
-		printk("NFSD: preprocess_seqid_op: old stateid!\n");
+		dprintk("NFSD: preprocess_seqid_op: old stateid!\n");
 		return nfserr_old_stateid;
 	}
 	renew_client(sop->so_client);
@@ -2242,7 +2232,7 @@ check_replay:
 		/* indicate replay to calling function */
 		return nfserr_replay_me;
 	}
-	printk("NFSD: preprocess_seqid_op: bad seqid (expected %d, got %d)\n",
+	dprintk("NFSD: preprocess_seqid_op: bad seqid (expected %d, got %d)\n",
 			sop->so_seqid, seqid);
 	*sopp = NULL;
 	return nfserr_bad_seqid;
@@ -2561,7 +2551,7 @@ find_lockstateowner_str(struct inode *inode, clientid_t *clid,
 	struct nfs4_stateowner *op;
 
 	list_for_each_entry(op, &lock_ownerstr_hashtbl[hashval], so_strhash) {
-		if (cmp_owner_str(op, owner, clid))
+		if (same_owner_str(op, owner, clid))
 			return op;
 	}
 	return NULL;
@@ -2855,7 +2845,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 			file_lock.fl_type = F_WRLCK;
 		break;
 		default:
-			printk("NFSD: nfs4_lockt: bad lock type!\n");
+			dprintk("NFSD: nfs4_lockt: bad lock type!\n");
 			status = nfserr_inval;
 		goto out;
 	}
@@ -3025,7 +3015,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
 	INIT_LIST_HEAD(&matches);
 	for (i = 0; i < LOCK_HASH_SIZE; i++) {
 		list_for_each_entry(sop, &lock_ownerid_hashtbl[i], so_idhash) {
-			if (!cmp_owner_str(sop, owner, clid))
+			if (!same_owner_str(sop, owner, clid))
 				continue;
 			list_for_each_entry(stp, &sop->so_stateids,
 					st_perstateowner) {
@@ -3149,11 +3139,14 @@ nfs4_check_open_reclaim(clientid_t *clid)
 
 /* initialization to perform at module load time: */
 
-void
+int
 nfs4_state_init(void)
 {
-	int i;
+	int i, status;
 
+	status = nfsd4_init_slabs();
+	if (status)
+		return status;
 	for (i = 0; i < CLIENT_HASH_SIZE; i++) {
 		INIT_LIST_HEAD(&conf_id_hashtbl[i]);
 		INIT_LIST_HEAD(&conf_str_hashtbl[i]);
@@ -3182,6 +3175,7 @@ nfs4_state_init(void)
 	for (i = 0; i < CLIENT_HASH_SIZE; i++)
 		INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
 	reclaim_str_hashtbl_size = 0;
+	return 0;
 }
 
 static void
@@ -3242,20 +3236,15 @@ __nfs4_state_start(void)
 	set_max_delegations();
 }
 
-int
+void
 nfs4_state_start(void)
 {
-	int status;
-
 	if (nfs4_init)
-		return 0;
-	status = nfsd4_init_slabs();
-	if (status)
-		return status;
+		return;
 	nfsd4_load_reboot_recovery_data();
 	__nfs4_state_start();
 	nfs4_init = 1;
-	return 0;
+	return;
 }
 
 int
@@ -3313,7 +3302,6 @@ nfs4_state_shutdown(void)
 	nfs4_lock_state();
 	nfs4_release_reclaim();
 	__nfs4_state_shutdown();
-	nfsd4_free_slabs();
 	nfs4_unlock_state();
 }