nfsd4: separate session allocation and initialization
This will allow some further simplification. Signed-off-by: J. Bruce Fields <bfields@redhat.com>hifive-unleashed-5.1
parent
a827bcb242
commit
81f0b2a496
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@ -946,21 +946,10 @@ static struct nfsd4_session *alloc_session(struct nfsd4_channel_attrs *fchan)
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return new;
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return new;
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}
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}
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static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_create_session *cses)
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static struct nfsd4_session *init_session(struct svc_rqst *rqstp, struct nfsd4_session *new, struct nfs4_client *clp, struct nfsd4_create_session *cses)
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{
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{
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struct nfsd4_session *new;
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struct nfsd4_conn *conn;
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int idx;
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int idx;
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new = alloc_session(&cses->fore_channel);
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if (!new)
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return NULL;
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conn = alloc_conn_from_crses(rqstp, cses);
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if (!conn) {
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__free_session(new);
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return NULL;
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}
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new->se_client = clp;
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new->se_client = clp;
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gen_sessionid(new);
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gen_sessionid(new);
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@ -978,7 +967,6 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n
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spin_unlock(&clp->cl_lock);
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spin_unlock(&clp->cl_lock);
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spin_unlock(&client_lock);
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spin_unlock(&client_lock);
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nfsd4_init_conn(rqstp, conn, new);
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if (cses->flags & SESSION4_BACK_CHAN) {
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if (cses->flags & SESSION4_BACK_CHAN) {
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struct sockaddr *sa = svc_addr(rqstp);
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struct sockaddr *sa = svc_addr(rqstp);
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/*
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/*
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@ -1766,6 +1754,7 @@ nfsd4_create_session(struct svc_rqst *rqstp,
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struct sockaddr *sa = svc_addr(rqstp);
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struct sockaddr *sa = svc_addr(rqstp);
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struct nfs4_client *conf, *unconf;
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struct nfs4_client *conf, *unconf;
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struct nfsd4_session *new;
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struct nfsd4_session *new;
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struct nfsd4_conn *conn;
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struct nfsd4_clid_slot *cs_slot = NULL;
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struct nfsd4_clid_slot *cs_slot = NULL;
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bool confirm_me = false;
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bool confirm_me = false;
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__be32 status = 0;
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__be32 status = 0;
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@ -1774,6 +1763,13 @@ nfsd4_create_session(struct svc_rqst *rqstp,
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return nfserr_inval;
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return nfserr_inval;
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if (check_forechannel_attrs(cr_ses->fore_channel))
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if (check_forechannel_attrs(cr_ses->fore_channel))
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return nfserr_toosmall;
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return nfserr_toosmall;
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new = alloc_session(&cr_ses->fore_channel);
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if (!new)
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return nfserr_jukebox;
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status = nfserr_jukebox;
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conn = alloc_conn_from_crses(rqstp, cr_ses);
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if (!conn)
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goto out_free_session;
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nfs4_lock_state();
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nfs4_lock_state();
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unconf = find_unconfirmed_client(&cr_ses->clientid, true);
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unconf = find_unconfirmed_client(&cr_ses->clientid, true);
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@ -1784,41 +1780,40 @@ nfsd4_create_session(struct svc_rqst *rqstp,
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status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
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status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
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if (status == nfserr_replay_cache) {
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if (status == nfserr_replay_cache) {
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status = nfsd4_replay_create_session(cr_ses, cs_slot);
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status = nfsd4_replay_create_session(cr_ses, cs_slot);
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goto out;
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goto out_free_conn;
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} else if (cr_ses->seqid != cs_slot->sl_seqid + 1) {
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} else if (cr_ses->seqid != cs_slot->sl_seqid + 1) {
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status = nfserr_seq_misordered;
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status = nfserr_seq_misordered;
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goto out;
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goto out_free_conn;
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}
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}
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} else if (unconf) {
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} else if (unconf) {
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if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred) ||
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if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred) ||
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!rpc_cmp_addr(sa, (struct sockaddr *) &unconf->cl_addr)) {
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!rpc_cmp_addr(sa, (struct sockaddr *) &unconf->cl_addr)) {
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status = nfserr_clid_inuse;
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status = nfserr_clid_inuse;
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goto out;
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goto out_free_conn;
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}
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}
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cs_slot = &unconf->cl_cs_slot;
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cs_slot = &unconf->cl_cs_slot;
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status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
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status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
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if (status) {
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if (status) {
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/* an unconfirmed replay returns misordered */
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/* an unconfirmed replay returns misordered */
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status = nfserr_seq_misordered;
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status = nfserr_seq_misordered;
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goto out;
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goto out_free_conn;
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}
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}
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confirm_me = true;
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confirm_me = true;
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conf = unconf;
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conf = unconf;
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} else {
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} else {
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status = nfserr_stale_clientid;
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status = nfserr_stale_clientid;
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goto out;
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goto out_free_conn;
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}
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}
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status = nfs_ok;
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/*
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/*
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* We do not support RDMA or persistent sessions
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* We do not support RDMA or persistent sessions
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*/
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*/
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cr_ses->flags &= ~SESSION4_PERSIST;
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cr_ses->flags &= ~SESSION4_PERSIST;
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cr_ses->flags &= ~SESSION4_RDMA;
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cr_ses->flags &= ~SESSION4_RDMA;
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status = nfserr_jukebox;
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init_session(rqstp, new, conf, cr_ses);
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new = alloc_init_session(rqstp, conf, cr_ses);
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nfsd4_init_conn(rqstp, conn, new);
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if (!new)
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goto out;
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status = nfs_ok;
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memcpy(cr_ses->sessionid.data, new->se_sessionid.data,
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memcpy(cr_ses->sessionid.data, new->se_sessionid.data,
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NFS4_MAX_SESSIONID_LEN);
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NFS4_MAX_SESSIONID_LEN);
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memcpy(&cr_ses->fore_channel, &new->se_fchannel,
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memcpy(&cr_ses->fore_channel, &new->se_fchannel,
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@ -1840,6 +1835,11 @@ out:
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nfs4_unlock_state();
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nfs4_unlock_state();
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dprintk("%s returns %d\n", __func__, ntohl(status));
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dprintk("%s returns %d\n", __func__, ntohl(status));
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return status;
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return status;
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out_free_conn:
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free_conn(conn);
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out_free_session:
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__free_session(new);
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goto out;
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}
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}
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static bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
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static bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
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