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authorPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
committerPatrick McHardy <kaber@trash.net>2013-03-31 18:10:34 +0200
commit70711d223510ba1773cfe1d7770a56141c815ff8 (patch)
tree4a71f38a3a554ddecaa31b7d8c6bc49b7d1705b4 /fs/lockd/svc.c
parentd53b4ed072d9779cdf53582c46436dec06d0961f (diff)
parent19f949f52599ba7c3f67a5897ac6be14bfcb1200 (diff)
Merge tag 'v3.8' of /home/kaber/src/repos/linux
Linux 3.8 Signed-off-by: Patrick McHardy <kaber@trash.net> Conflicts: include/linux/Kbuild include/linux/netlink.h
Diffstat (limited to 'fs/lockd/svc.c')
-rw-r--r--fs/lockd/svc.c61
1 files changed, 28 insertions, 33 deletions
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 80938fda67e..a2aa97d4567 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -87,32 +87,36 @@ static unsigned long get_lockd_grace_period(void)
return nlm_timeout * 5 * HZ;
}
-static struct lock_manager lockd_manager = {
-};
-
-static void grace_ender(struct work_struct *not_used)
+static void grace_ender(struct work_struct *grace)
{
- locks_end_grace(&lockd_manager);
-}
+ struct delayed_work *dwork = container_of(grace, struct delayed_work,
+ work);
+ struct lockd_net *ln = container_of(dwork, struct lockd_net,
+ grace_period_end);
-static DECLARE_DELAYED_WORK(grace_period_end, grace_ender);
+ locks_end_grace(&ln->lockd_manager);
+}
-static void set_grace_period(void)
+static void set_grace_period(struct net *net)
{
unsigned long grace_period = get_lockd_grace_period();
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
- locks_start_grace(&lockd_manager);
- cancel_delayed_work_sync(&grace_period_end);
- schedule_delayed_work(&grace_period_end, grace_period);
+ locks_start_grace(net, &ln->lockd_manager);
+ cancel_delayed_work_sync(&ln->grace_period_end);
+ schedule_delayed_work(&ln->grace_period_end, grace_period);
}
static void restart_grace(void)
{
if (nlmsvc_ops) {
- cancel_delayed_work_sync(&grace_period_end);
- locks_end_grace(&lockd_manager);
+ struct net *net = &init_net;
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+
+ cancel_delayed_work_sync(&ln->grace_period_end);
+ locks_end_grace(&ln->lockd_manager);
nlmsvc_invalidate_all();
- set_grace_period();
+ set_grace_period(net);
}
}
@@ -122,7 +126,7 @@ static void restart_grace(void)
static int
lockd(void *vrqstp)
{
- int err = 0, preverr = 0;
+ int err = 0;
struct svc_rqst *rqstp = vrqstp;
/* try_to_freeze() is called from svc_recv() */
@@ -137,8 +141,6 @@ lockd(void *vrqstp)
nlm_timeout = LOCKD_DFLT_TIMEO;
nlmsvc_timeout = nlm_timeout * HZ;
- set_grace_period();
-
/*
* The main request loop. We don't terminate until the last
* NFS mount or NFS daemon has gone away.
@@ -163,29 +165,14 @@ lockd(void *vrqstp)
* recvfrom routine.
*/
err = svc_recv(rqstp, timeout);
- if (err == -EAGAIN || err == -EINTR) {
- preverr = err;
+ if (err == -EAGAIN || err == -EINTR)
continue;
- }
- if (err < 0) {
- if (err != preverr) {
- printk(KERN_WARNING "%s: unexpected error "
- "from svc_recv (%d)\n", __func__, err);
- preverr = err;
- }
- schedule_timeout_interruptible(HZ);
- continue;
- }
- preverr = err;
-
dprintk("lockd: request from %s\n",
svc_print_addr(rqstp, buf, sizeof(buf)));
svc_process(rqstp);
}
flush_signals(current);
- cancel_delayed_work_sync(&grace_period_end);
- locks_end_grace(&lockd_manager);
if (nlmsvc_ops)
nlmsvc_invalidate_all();
nlm_shutdown_hosts();
@@ -266,6 +253,7 @@ static int lockd_up_net(struct svc_serv *serv, struct net *net)
error = make_socks(serv, net);
if (error < 0)
goto err_socks;
+ set_grace_period(net);
dprintk("lockd_up_net: per-net data created; net=%p\n", net);
return 0;
@@ -283,6 +271,8 @@ static void lockd_down_net(struct svc_serv *serv, struct net *net)
if (ln->nlmsvc_users) {
if (--ln->nlmsvc_users == 0) {
nlm_shutdown_hosts_net(net);
+ cancel_delayed_work_sync(&ln->grace_period_end);
+ locks_end_grace(&ln->lockd_manager);
svc_shutdown_net(serv, net);
dprintk("lockd_down_net: per-net data destroyed; net=%p\n", net);
}
@@ -589,6 +579,11 @@ module_param(nlm_max_connections, uint, 0644);
static int lockd_init_net(struct net *net)
{
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+
+ INIT_DELAYED_WORK(&ln->grace_period_end, grace_ender);
+ INIT_LIST_HEAD(&ln->grace_list);
+ spin_lock_init(&ln->nsm_clnt_lock);
return 0;
}