If the server doesn't agree to out backchannel setup request, then
don't set one up.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
if (clp == NULL)
goto out;
if (clp == NULL)
goto out;
+ if (!(clp->cl_session->flags & SESSION4_BACK_CHAN))
+ goto out;
tbl = &clp->cl_session->bc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
tbl = &clp->cl_session->bc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
struct nfs4_channel_attrs *sent = &args->bc_attrs;
struct nfs4_channel_attrs *rcvd = &res->bc_attrs;
struct nfs4_channel_attrs *sent = &args->bc_attrs;
struct nfs4_channel_attrs *rcvd = &res->bc_attrs;
+ if (!(res->flags & SESSION4_BACK_CHAN))
+ goto out;
if (rcvd->max_rqst_sz > sent->max_rqst_sz)
return -EINVAL;
if (rcvd->max_resp_sz < sent->max_resp_sz)
if (rcvd->max_rqst_sz > sent->max_rqst_sz)
return -EINVAL;
if (rcvd->max_resp_sz < sent->max_resp_sz)
return -EINVAL;
if (rcvd->max_reqs != sent->max_reqs)
return -EINVAL;
return -EINVAL;
if (rcvd->max_reqs != sent->max_reqs)
return -EINVAL;
nfs4_copy_sessionid(&session->sess_id, &res->sessionid);
session->flags = res->flags;
memcpy(&session->fc_attrs, &res->fc_attrs, sizeof(session->fc_attrs));
nfs4_copy_sessionid(&session->sess_id, &res->sessionid);
session->flags = res->flags;
memcpy(&session->fc_attrs, &res->fc_attrs, sizeof(session->fc_attrs));
- memcpy(&session->bc_attrs, &res->bc_attrs, sizeof(session->bc_attrs));
+ if (res->flags & SESSION4_BACK_CHAN)
+ memcpy(&session->bc_attrs, &res->bc_attrs,
+ sizeof(session->bc_attrs));
}
static int _nfs4_proc_create_session(struct nfs_client *clp,
}
static int _nfs4_proc_create_session(struct nfs_client *clp,
tbl = &ses->fc_slot_table;
tbl->session = ses;
status = nfs4_realloc_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
tbl = &ses->fc_slot_table;
tbl->session = ses;
status = nfs4_realloc_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
- if (status) /* -ENOMEM */
+ if (status || !(ses->flags & SESSION4_BACK_CHAN)) /* -ENOMEM */
return status;
/* Back channel */
tbl = &ses->bc_slot_table;
return status;
/* Back channel */
tbl = &ses->bc_slot_table;