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Commit e1ff371f authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

nfsd4: new_conn_from_crses should only allocate 



Do the initialization in the caller, and clarify that the only failure
ever possible here was due to allocation.

Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 3ba63671

fs/nfsd/nfs4state.c

+10 −16
Original line number Diff line number Diff line
@@ -852,7 +852,7 @@ static int nfsd4_register_conn(struct nfsd4_conn *conn) 
	return register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);

}



static void nfsd4_init_conn(struct svc_rqst *rqstp, struct nfsd4_conn *conn, struct nfsd4_session *ses, u32 dir)

static void nfsd4_init_conn(struct svc_rqst *rqstp, struct nfsd4_conn *conn, struct nfsd4_session *ses)

{

	int ret;
@@ -862,25 +862,19 @@ static void nfsd4_init_conn(struct svc_rqst *rqstp, struct nfsd4_conn *conn, str 
		/* oops; xprt is already down: */

		nfsd4_conn_lost(&conn->cn_xpt_user);

	if (ses->se_client->cl_cb_state == NFSD4_CB_DOWN &&

		dir & NFS4_CDFC4_BACK) {

			conn->cn_flags & NFS4_CDFC4_BACK) {

		/* callback channel may be back up */

		nfsd4_probe_callback(ses->se_client);

	}

}



static __be32 nfsd4_new_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_session *ses)

static struct nfsd4_conn *alloc_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_create_session *cses)

{

	struct nfsd4_conn *conn;

	u32 dir = NFS4_CDFC4_FORE;



	if (ses->se_flags & SESSION4_BACK_CHAN)

	if (cses->flags & SESSION4_BACK_CHAN)

		dir |= NFS4_CDFC4_BACK;



	conn = alloc_conn(rqstp, dir);

	if (!conn)

		return nfserr_jukebox;

	nfsd4_init_conn(rqstp, conn, ses, dir);

	return nfs_ok;

	return alloc_conn(rqstp, dir);

}



/* must be called under client_lock */
@@ -929,9 +923,9 @@ void nfsd4_put_session(struct nfsd4_session *ses) 
static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_create_session *cses)

{

	struct nfsd4_session *new;

	struct nfsd4_conn *conn;

	struct nfsd4_channel_attrs *fchan = &cses->fore_channel;

	int numslots, slotsize;

	__be32 status;

	int idx;



	/*
@@ -970,14 +964,14 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n 
	spin_unlock(&clp->cl_lock);

	spin_unlock(&client_lock);



	status = nfsd4_new_conn_from_crses(rqstp, new);

	/* whoops: benny points out, status is ignored! (err, or bogus) */

	if (status) {

	conn = alloc_conn_from_crses(rqstp, cses);

	if (!conn) {

		spin_lock(&client_lock);

		free_session(&new->se_ref);

		spin_unlock(&client_lock);

		return NULL;

	}

	nfsd4_init_conn(rqstp, conn, new);

	if (cses->flags & SESSION4_BACK_CHAN) {

		struct sockaddr *sa = svc_addr(rqstp);

		/*
@@ -1890,7 +1884,7 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp, 
	conn = alloc_conn(rqstp, bcts->dir);

	if (!conn)

		return nfserr_jukebox;

	nfsd4_init_conn(rqstp, conn, cstate->session, bcts->dir);

	nfsd4_init_conn(rqstp, conn, cstate->session);

	return nfs_ok;

}