[PATCH v2 11/15] LockD: manage grace list per network namespace

Stanislav Kinsbursky
2012-07-25T12:58:40Z

fs/lockd/grace.c | 14 +++++++++++---
fs/lockd/netns.h | 1 +
fs/lockd/svc.c | 1 +
3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/fs/lockd/grace.c b/fs/lockd/grace.c
index 183cc1f..8dbaff7 100644
--- a/fs/lockd/grace.c
+++ b/fs/lockd/grace.c
@@ -4,8 +4,10 @@

#include <linux/module.h>
#include <linux/lockd/bind.h>
+#include <net/net_namespace.h>
+
+#include "netns.h"

-static LIST_HEAD(grace_list);
static DEFINE_SPINLOCK(grace_lock);

/**
@@ -21,8 +23,11 @@ static DEFINE_SPINLOCK(grace_lock);
*/
void locks_start_grace(struct lock_manager *lm)
{
+ struct net *net = &init_net;
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+
spin_lock(&grace_lock);
- list_add(&lm->list, &grace_list);
+ list_add(&lm->list, &ln->grace_list);
spin_unlock(&grace_lock);
}
EXPORT_SYMBOL_GPL(locks_start_grace);
@@ -54,6 +59,9 @@ EXPORT_SYMBOL_GPL(locks_end_grace);
*/
int locks_in_grace(void)
{
- return !list_empty(&grace_list);
+ struct net *net = &init_net;
+ struct lockd_net *ln = net_generic(net, lockd_net_id);
+
+ return !list_empty(&ln->grace_list);
}
EXPORT_SYMBOL_GPL(locks_in_grace);
diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h
index e78650c..4eee248 100644
--- a/fs/lockd/netns.h
+++ b/fs/lockd/netns.h
@@ -11,6 +11,7 @@ struct lockd_net {

struct delayed_work grace_period_end;
struct lock_manager lockd_manager;
+ struct list_head grace_list;
};

extern int lockd_net_id;
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index a9c436b..834dfe2 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -596,6 +596,7 @@ 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);
return 0;
}