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Commit 5a3c9d71 authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

nfsd4: separate callback change and callback probe 



Only one of the nfsd4_callback_probe callers actually cares about
changing the callback information.

Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 8b5ce5cd

fs/nfsd/nfs4callback.c

+10 −5
Original line number Diff line number Diff line
@@ -550,7 +550,7 @@ int set_callback_cred(void) 


static struct workqueue_struct *callback_wq;



void do_probe_callback(struct nfs4_client *clp)

static void do_probe_callback(struct nfs4_client *clp)

{

	struct nfsd4_callback *cb = &clp->cl_cb_null;
@@ -568,17 +568,22 @@ void do_probe_callback(struct nfs4_client *clp) 
}



/*

 * Set up the callback client and put a NFSPROC4_CB_NULL on the wire...

 * Poke the callback thread to process any updates to the callback

 * parameters, and send a null probe.

 */

void nfsd4_probe_callback(struct nfs4_client *clp, struct nfs4_cb_conn *conn)

void nfsd4_probe_callback(struct nfs4_client *clp)

{

	set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_cb_flags);

	do_probe_callback(clp);

}



void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *conn)

{

	BUG_ON(atomic_read(&clp->cl_cb_set));



	spin_lock(&clp->cl_lock);

	memcpy(&clp->cl_cb_conn, conn, sizeof(struct nfs4_cb_conn));

	set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_cb_flags);

	spin_unlock(&clp->cl_lock);

	do_probe_callback(clp);

}



/*

fs/nfsd/nfs4state.c

+4 −3
Original line number Diff line number Diff line
@@ -783,7 +783,7 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n 
		rpc_copy_addr((struct sockaddr *)&clp->cl_cb_conn.cb_addr, sa);

		clp->cl_cb_conn.cb_addrlen = svc_addr_len(sa);

		clp->cl_cb_conn.cb_minorversion = 1;

		nfsd4_probe_callback(clp, &clp->cl_cb_conn);

		nfsd4_probe_callback(clp);

	}

	return new;

}
@@ -1912,7 +1912,8 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp, 
			status = nfserr_clid_inuse;

		else {

			atomic_set(&conf->cl_cb_set, 0);

			nfsd4_probe_callback(conf, &unconf->cl_cb_conn);

			nfsd4_change_callback(conf, &unconf->cl_cb_conn);

			nfsd4_probe_callback(conf);

			expire_client(unconf);

			status = nfs_ok;
@@ -1946,7 +1947,7 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp, 
			}

			move_to_confirmed(unconf);

			conf = unconf;

			nfsd4_probe_callback(conf, &conf->cl_cb_conn);

			nfsd4_probe_callback(conf);

			status = nfs_ok;

		}

	} else if ((!conf || (conf && !same_verf(&conf->cl_confirm, &confirm)))

fs/nfsd/state.h

+2 −1
Original line number Diff line number Diff line
@@ -453,7 +453,8 @@ extern int nfs4_in_grace(void); 
extern __be32 nfs4_check_open_reclaim(clientid_t *clid);

extern void nfs4_free_stateowner(struct kref *kref);

extern int set_callback_cred(void);

extern void nfsd4_probe_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);

extern void nfsd4_probe_callback(struct nfs4_client *clp);

extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);

extern void nfsd4_do_callback_rpc(struct work_struct *);

extern void nfsd4_cb_recall(struct nfs4_delegation *dp);

extern int nfsd4_create_callback_queue(void);