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Subject[PATCH RFC 08/13] LockD: make lockd manager allocated per network namespace
From
Date
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
---
fs/lockd/netns.h | 2 ++
fs/lockd/svc.c | 18 ++++++++++--------
2 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h
index 94653ae..e78650c 100644
--- a/fs/lockd/netns.h
+++ b/fs/lockd/netns.h
@@ -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;
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 70c4177..a9c436b 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -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();


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