LockD: make lockd manager allocated per network namespace
Stanislav Kinsbursky [Wed, 25 Jul 2012 12:56:50 +0000 (16:56 +0400)]
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

fs/lockd/netns.h
fs/lockd/svc.c

index 94653ae..e78650c 100644 (file)
@@ -1,6 +1,7 @@
 #ifndef __LOCKD_NETNS_H__
 #define __LOCKD_NETNS_H__
 
+#include <linux/fs.h>
 #include <net/netns/generic.h>
 
 struct lockd_net {
@@ -9,6 +10,7 @@ struct lockd_net {
        unsigned long nrhosts;
 
        struct delayed_work grace_period_end;
+       struct lock_manager lockd_manager;
 };
 
 extern int lockd_net_id;
index 70c4177..a9c436b 100644 (file)
@@ -87,12 +87,14 @@ 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);
+
+       locks_end_grace(&ln->lockd_manager);
 }
 
 static void set_grace_period(void)
@@ -100,7 +102,7 @@ static void set_grace_period(void)
        unsigned long grace_period = get_lockd_grace_period();
        struct lockd_net *ln = net_generic(&init_net, lockd_net_id);
 
-       locks_start_grace(&lockd_manager);
+       locks_start_grace(&ln->lockd_manager);
        cancel_delayed_work_sync(&ln->grace_period_end);
        schedule_delayed_work(&ln->grace_period_end, grace_period);
 }
@@ -111,7 +113,7 @@ static void restart_grace(void)
                struct lockd_net *ln = net_generic(&init_net, lockd_net_id);
 
                cancel_delayed_work_sync(&ln->grace_period_end);
-               locks_end_grace(&lockd_manager);
+               locks_end_grace(&ln->lockd_manager);
                nlmsvc_invalidate_all();
                set_grace_period();
        }
@@ -187,7 +189,7 @@ lockd(void *vrqstp)
        }
        flush_signals(current);
        cancel_delayed_work_sync(&ln->grace_period_end);
-       locks_end_grace(&lockd_manager);
+       locks_end_grace(&ln->lockd_manager);
        if (nlmsvc_ops)
                nlmsvc_invalidate_all();
        nlm_shutdown_hosts();