[PATCH v2 09/15] NFSd: make nfsd4_manager allocated per network namespace context.

Stanislav Kinsbursky
2012-07-25T12:58:50Z

fs/nfsd/netns.h | 2 ++
fs/nfsd/nfs4state.c | 32 +++++++++++++++++++-------------
2 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index 3936563..e99767d 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -34,6 +34,8 @@ struct nfsd_net {

struct cache_detail *idtoname_cache;
struct cache_detail *nametoid_cache;
+
+ struct lock_manager nfsd4_manager;
};

extern int nfsd_net_id;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index ab0a02a..fad2408 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -45,6 +45,8 @@
#include "vfs.h"
#include "current_stateid.h"

+#include "netns.h"
+
#define NFSDDBG_FACILITY NFSDDBG_PROC

/* Globals */
@@ -3115,22 +3117,21 @@ out:
return status;
}

-static struct lock_manager nfsd4_manager = {
-};
-
static bool grace_ended;

static void
-nfsd4_end_grace(void)
+nfsd4_end_grace(struct net *net)
{
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
/* do nothing if grace period already ended */
if (grace_ended)
return;

dprintk("NFSD: end of grace period\n");
grace_ended = true;
- nfsd4_record_grace_done(&init_net, boot_time);
- locks_end_grace(&nfsd4_manager);
+ nfsd4_record_grace_done(net, boot_time);
+ locks_end_grace(&nn->nfsd4_manager);
/*
* Now that every NFSv4 client has had the chance to recover and
* to see the (possibly new, possibly shorter) lease time, we
@@ -3153,7 +3154,7 @@ nfs4_laundromat(void)
nfs4_lock_state();

dprintk("NFSD: laundromat service - starting\n");
- nfsd4_end_grace();
+ nfsd4_end_grace(&init_net);
INIT_LIST_HEAD(&reaplist);
spin_lock(&client_lock);
list_for_each_safe(pos, next, &client_lru) {
@@ -4687,6 +4688,8 @@ set_max_delegations(void)
int
nfs4_state_start(void)
{
+ struct net *net = &init_net;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
int ret;

/*
@@ -4696,10 +4699,10 @@ nfs4_state_start(void)
* to that instead and then do most of the rest of this on a per-net
* basis.
*/
- get_net(&init_net);
- nfsd4_client_tracking_init(&init_net);
+ get_net(net);
+ nfsd4_client_tracking_init(net);
boot_time = get_seconds();
- locks_start_grace(&nfsd4_manager);
+ locks_start_grace(&nn->nfsd4_manager);
grace_ended = false;
printk(KERN_INFO "NFSD: starting %ld-second grace period\n",
nfsd4_grace);
@@ -4722,8 +4725,8 @@ nfs4_state_start(void)
out_free_laundry:
destroy_workqueue(laundry_wq);
out_recovery:
- nfsd4_client_tracking_exit(&init_net);
- put_net(&init_net);
+ nfsd4_client_tracking_exit(net);
+ put_net(net);
return ret;
}

@@ -4764,9 +4767,12 @@ __nfs4_state_shutdown(void)
void
nfs4_state_shutdown(void)
{
+ struct net *net = &init_net;
+ struct nfsd_net *nn = net_generic(net, nfsd_net_id);
+
cancel_delayed_work_sync(&laundromat_work);
destroy_workqueue(laundry_wq);
- locks_end_grace(&nfsd4_manager);
+ locks_end_grace(&nn->nfsd4_manager);
nfs4_lock_state();
__nfs4_state_shutdown();
nfs4_unlock_state();