SUNRPC: move per-net operations from svc_destroy()
The idea is to separate service destruction and per-net operations,
because these are two different things and the mix looks ugly.
Notes:
1) For NFS server this patch looks ugly (sorry for that). But these
place will be rewritten soon during NFSd containerization.
2) LockD per-net counter increase int lockd_up() was moved prior to
make_socks() to make lockd_down_net() call safe in case of error.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 7269988..c55298e 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -661,6 +661,7 @@
{
char *mesg = buf;
int fd, err;
+ struct net *net = &init_net;
err = get_int(&mesg, &fd);
if (err != 0 || fd < 0)
@@ -672,6 +673,8 @@
err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
if (err < 0) {
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
return err;
}
@@ -709,6 +712,7 @@
char transport[16];
struct svc_xprt *xprt;
int port, err;
+ struct net *net = &init_net;
if (sscanf(buf, "%15s %4u", transport, &port) != 2)
return -EINVAL;
@@ -720,12 +724,12 @@
if (err != 0)
return err;
- err = svc_create_xprt(nfsd_serv, transport, &init_net,
+ err = svc_create_xprt(nfsd_serv, transport, net,
PF_INET, port, SVC_SOCK_ANONYMOUS);
if (err < 0)
goto out_err;
- err = svc_create_xprt(nfsd_serv, transport, &init_net,
+ err = svc_create_xprt(nfsd_serv, transport, net,
PF_INET6, port, SVC_SOCK_ANONYMOUS);
if (err < 0 && err != -EAFNOSUPPORT)
goto out_close;
@@ -734,12 +738,14 @@
nfsd_serv->sv_nrthreads--;
return 0;
out_close:
- xprt = svc_find_xprt(nfsd_serv, transport, &init_net, PF_INET, port);
+ xprt = svc_find_xprt(nfsd_serv, transport, net, PF_INET, port);
if (xprt != NULL) {
svc_close_xprt(xprt);
svc_xprt_put(xprt);
}
out_err:
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
return err;
}
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 0762f3c..ee709fc 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -382,6 +382,7 @@
int i = 0;
int tot = 0;
int err = 0;
+ struct net *net = &init_net;
WARN_ON(!mutex_is_locked(&nfsd_mutex));
@@ -426,6 +427,9 @@
if (err)
break;
}
+
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
return err;
@@ -441,6 +445,7 @@
{
int error;
bool nfsd_up_before;
+ struct net *net = &init_net;
mutex_lock(&nfsd_mutex);
dprintk("nfsd: creating service\n");
@@ -473,6 +478,8 @@
if (error < 0 && !nfsd_up_before)
nfsd_shutdown();
out_destroy:
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv); /* Release server */
out:
mutex_unlock(&nfsd_mutex);
@@ -556,6 +563,9 @@
nfsdstats.th_cnt --;
out:
+ if (rqstp->rq_server->sv_nrthreads == 1)
+ svc_shutdown_net(rqstp->rq_server, &init_net);
+
/* Release the thread */
svc_exit_thread(rqstp);
@@ -668,8 +678,12 @@
int nfsd_pool_stats_release(struct inode *inode, struct file *file)
{
int ret = seq_release(inode, file);
+ struct net *net = &init_net;
+
mutex_lock(&nfsd_mutex);
/* this function really, really should have been called svc_put() */
+ if (nfsd_serv->sv_nrthreads == 1)
+ svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
mutex_unlock(&nfsd_mutex);
return ret;