[PATCH 3.4 55/88] nfsd: pass net to nfsd_startup() and nfsd_shutdown()

Greg Kroah-Hartman
2014-06-10T00:22:49Z

From: Stanislav Kinsbursky <skinsbursky@parallels.com>

commit db42d1a76a8dfcaba7a2dc9c591fa4e231db22b3 upstream.

Precursor patch. Hard-coded "init_net" will be replaced by proper one in
future.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
[wengmeiling: backport to 3.4:
- adjust context
- one more parameter(int port) for nfsd_startup()
- no net ns initialization in nfsd_shutdown()
- pass @net to lockd_up() in nfsd_startup()
- pass @net to lockd_down() in nfsd_shutdown()]
Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nfsd/nfssvc.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)

--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -203,10 +203,9 @@ static int nfsd_init_socks(int port, str

static bool nfsd_up = false;

-static int nfsd_startup(unsigned short port, int nrservs)
+static int nfsd_startup(unsigned short port, int nrservs, struct net *net)
{
int ret;
- struct net *net = &init_net;

if (nfsd_up)
return 0;
@@ -221,7 +220,7 @@ static int nfsd_startup(unsigned short p
ret = nfsd_init_socks(port, net);
if (ret)
goto out_racache;
- ret = lockd_up(&init_net);
+ ret = lockd_up(net);
if (ret)
goto out_racache;
ret = nfs4_state_start();
@@ -230,13 +229,13 @@ static int nfsd_startup(unsigned short p
nfsd_up = true;
return 0;
out_lockd:
- lockd_down(&init_net);
+ lockd_down(net);
out_racache:
nfsd_racache_shutdown();
return ret;
}

-static void nfsd_shutdown(void)
+static void nfsd_shutdown(struct net *net)
{
/*
* write_ports can create the server without actually starting
@@ -247,14 +246,14 @@ static void nfsd_shutdown(void)
if (!nfsd_up)
return;
nfs4_state_shutdown();
- lockd_down(&init_net);
+ lockd_down(net);
nfsd_racache_shutdown();
nfsd_up = false;
}

static void nfsd_last_thread(struct svc_serv *serv, struct net *net)
{
- nfsd_shutdown();
+ nfsd_shutdown(net);

svc_rpcb_cleanup(serv, net);

@@ -458,7 +457,7 @@ nfsd_svc(unsigned short port, int nrserv

nfsd_up_before = nfsd_up;

- error = nfsd_startup(port, nrservs);
+ error = nfsd_startup(port, nrservs, net);
if (error)
goto out_destroy;
error = svc_set_num_threads(nfsd_serv, NULL, nrservs);
@@ -471,7 +470,7 @@ nfsd_svc(unsigned short port, int nrserv
error = nfsd_serv->sv_nrthreads - 1;
out_shutdown:
if (error < 0 && !nfsd_up_before)
- nfsd_shutdown();
+ nfsd_shutdown(net);
out_destroy:
nfsd_destroy(net); /* Release server */