static int nfsd_startup_generic(int nrservs)
{
int ret;
if (nfsd_users++)
return 0;
/*
* Readahead param cache - will no-op if it already exists.
* (Note therefore results will be suboptimal if number of
* threads is modified after nfsd start.)
*/
ret = nfsd_racache_init(2*nrservs);
if (ret)
goto dec_users;
ret = nfs4_state_start();
if (ret)
goto out_racache;
return 0;
out_racache:
nfsd_racache_shutdown();
dec_users:
nfsd_users--;
return ret;
}
static int nfsd_startup(unsigned short port, int nrservs)
{
int ret;
if (nfsd_up)
return 0;
/*
* Readahead param cache - will no-op if it already exists.
* (Note therefore results will be suboptimal if number of
* threads is modified after nfsd start.)
*/
ret = nfsd_racache_init(2*nrservs);
if (ret)
return ret;
ret = nfsd_init_socks(port);
if (ret)
goto out_racache;
ret = lockd_up();
if (ret)
goto out_racache;
ret = nfs4_state_start();
if (ret)
goto out_lockd;
nfsd_up = true;
return 0;
out_lockd:
lockd_down();
out_racache:
nfsd_racache_shutdown();
return ret;
}
static int nfsd_startup(unsigned short port, int nrservs)
{
int ret;
if (nfsd_up)
return 0;
/*
*/
ret = nfsd_racache_init(2*nrservs);
if (ret)
return ret;
ret = nfsd_init_socks(port);
if (ret)
goto out_racache;
ret = lockd_up();
if (ret)
goto out_racache;
ret = nfs4_state_start();
if (ret)
goto out_lockd;
nfsd_up = true;
return 0;
out_lockd:
lockd_down();
out_racache:
nfsd_racache_shutdown();
return ret;
}
int
nfsd_svc(unsigned short port, int nrservs)
{
int error;
int none_left;
struct list_head *victim;
lock_kernel();
dprintk("nfsd: creating service\n");
error = -EINVAL;
if (nrservs <= 0)
nrservs = 0;
if (nrservs > NFSD_MAXSERVS)
nrservs = NFSD_MAXSERVS;
/* Readahead param cache - will no-op if it already exists */
error = nfsd_racache_init(2*nrservs);
nfs4_state_init();
if (error<0)
goto out;
if (!nfsd_serv) {
atomic_set(&nfsd_busy, 0);
error = -ENOMEM;
nfsd_serv = svc_create(&nfsd_program, NFSD_BUFSIZE);
if (nfsd_serv == NULL)
goto out;
error = svc_makesock(nfsd_serv, IPPROTO_UDP, port);
if (error < 0)
goto failure;
#ifdef CONFIG_NFSD_TCP
error = svc_makesock(nfsd_serv, IPPROTO_TCP, port);
if (error < 0)
goto failure;
#endif
do_gettimeofday(&nfssvc_boot); /* record boot time */
} else
nfsd_serv->sv_nrthreads++;
nrservs -= (nfsd_serv->sv_nrthreads-1);
while (nrservs > 0) {
nrservs--;
__module_get(THIS_MODULE);
error = svc_create_thread(nfsd, nfsd_serv);
if (error < 0) {
module_put(THIS_MODULE);
break;
}
}
victim = nfsd_list.next;
while (nrservs < 0 && victim != &nfsd_list) {
struct nfsd_list *nl =
list_entry(victim,struct nfsd_list, list);
victim = victim->next;
send_sig(SIG_NOCLEAN, nl->task, 1);
nrservs++;
}
failure:
none_left = (nfsd_serv->sv_nrthreads == 1);
svc_destroy(nfsd_serv); /* Release server */
if (none_left) {
nfsd_serv = NULL;
nfsd_racache_shutdown();
nfs4_state_shutdown();
}
out:
unlock_kernel();
return error;
}
