summaryrefslogtreecommitdiffstats
path: root/fs/lockd
diff options
context:
space:
mode:
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/host.c1
-rw-r--r--fs/lockd/mon.c89
-rw-r--r--fs/lockd/netns.h3
-rw-r--r--fs/lockd/svc.c1
4 files changed, 16 insertions, 78 deletions
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index b5f3c3ab0d5f..d716c9993a26 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -161,6 +161,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni,
host->h_nsmhandle = nsm;
host->h_addrbuf = nsm->sm_addrbuf;
host->net = ni->net;
+ strlcpy(host->nodename, utsname()->nodename, sizeof(host->nodename));
out:
return host;
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 6c05cd17e520..19166d4a8d31 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -42,7 +42,7 @@ struct nsm_args {
u32 proc;
char *mon_name;
- char *nodename;
+ const char *nodename;
};
struct nsm_res {
@@ -86,69 +86,18 @@ static struct rpc_clnt *nsm_create(struct net *net, const char *nodename)
return rpc_create(&args);
}
-static struct rpc_clnt *nsm_client_set(struct lockd_net *ln,
- struct rpc_clnt *clnt)
-{
- spin_lock(&ln->nsm_clnt_lock);
- if (ln->nsm_users == 0) {
- if (clnt == NULL)
- goto out;
- ln->nsm_clnt = clnt;
- }
- clnt = ln->nsm_clnt;
- ln->nsm_users++;
-out:
- spin_unlock(&ln->nsm_clnt_lock);
- return clnt;
-}
-
-static struct rpc_clnt *nsm_client_get(struct net *net, const char *nodename)
-{
- struct rpc_clnt *clnt, *new;
- struct lockd_net *ln = net_generic(net, lockd_net_id);
-
- clnt = nsm_client_set(ln, NULL);
- if (clnt != NULL)
- goto out;
-
- clnt = new = nsm_create(net, nodename);
- if (IS_ERR(clnt))
- goto out;
-
- clnt = nsm_client_set(ln, new);
- if (clnt != new)
- rpc_shutdown_client(new);
-out:
- return clnt;
-}
-
-static void nsm_client_put(struct net *net)
-{
- struct lockd_net *ln = net_generic(net, lockd_net_id);
- struct rpc_clnt *clnt = NULL;
-
- spin_lock(&ln->nsm_clnt_lock);
- ln->nsm_users--;
- if (ln->nsm_users == 0) {
- clnt = ln->nsm_clnt;
- ln->nsm_clnt = NULL;
- }
- spin_unlock(&ln->nsm_clnt_lock);
- if (clnt != NULL)
- rpc_shutdown_client(clnt);
-}
-
static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res,
- struct rpc_clnt *clnt)
+ const struct nlm_host *host)
{
int status;
+ struct rpc_clnt *clnt;
struct nsm_args args = {
.priv = &nsm->sm_priv,
.prog = NLM_PROGRAM,
.vers = 3,
.proc = NLMPROC_NSM_NOTIFY,
.mon_name = nsm->sm_mon_name,
- .nodename = clnt->cl_nodename,
+ .nodename = host->nodename,
};
struct rpc_message msg = {
.rpc_argp = &args,
@@ -157,6 +106,13 @@ static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res,
memset(res, 0, sizeof(*res));
+ clnt = nsm_create(host->net, host->nodename);
+ if (IS_ERR(clnt)) {
+ dprintk("lockd: failed to create NSM upcall transport, "
+ "status=%ld, net=%p\n", PTR_ERR(clnt), host->net);
+ return PTR_ERR(clnt);
+ }
+
msg.rpc_proc = &clnt->cl_procinfo[proc];
status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFTCONN);
if (status == -ECONNREFUSED) {
@@ -170,6 +126,8 @@ static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res,
status);
else
status = 0;
+
+ rpc_shutdown_client(clnt);
return status;
}
@@ -189,32 +147,19 @@ int nsm_monitor(const struct nlm_host *host)
struct nsm_handle *nsm = host->h_nsmhandle;
struct nsm_res res;
int status;
- struct rpc_clnt *clnt;
- const char *nodename = NULL;
dprintk("lockd: nsm_monitor(%s)\n", nsm->sm_name);
if (nsm->sm_monitored)
return 0;
- if (host->h_rpcclnt)
- nodename = host->h_rpcclnt->cl_nodename;
-
/*
* Choose whether to record the caller_name or IP address of
* this peer in the local rpc.statd's database.
*/
nsm->sm_mon_name = nsm_use_hostnames ? nsm->sm_name : nsm->sm_addrbuf;
- clnt = nsm_client_get(host->net, nodename);
- if (IS_ERR(clnt)) {
- status = PTR_ERR(clnt);
- dprintk("lockd: failed to create NSM upcall transport, "
- "status=%d, net=%p\n", status, host->net);
- return status;
- }
-
- status = nsm_mon_unmon(nsm, NSMPROC_MON, &res, clnt);
+ status = nsm_mon_unmon(nsm, NSMPROC_MON, &res, host);
if (unlikely(res.status != 0))
status = -EIO;
if (unlikely(status < 0)) {
@@ -246,11 +191,9 @@ void nsm_unmonitor(const struct nlm_host *host)
if (atomic_read(&nsm->sm_count) == 1
&& nsm->sm_monitored && !nsm->sm_sticky) {
- struct lockd_net *ln = net_generic(host->net, lockd_net_id);
-
dprintk("lockd: nsm_unmonitor(%s)\n", nsm->sm_name);
- status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res, ln->nsm_clnt);
+ status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res, host);
if (res.status != 0)
status = -EIO;
if (status < 0)
@@ -258,8 +201,6 @@ void nsm_unmonitor(const struct nlm_host *host)
nsm->sm_name);
else
nsm->sm_monitored = 0;
-
- nsm_client_put(host->net);
}
}
diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h
index 89fe011b1335..5426189406c1 100644
--- a/fs/lockd/netns.h
+++ b/fs/lockd/netns.h
@@ -12,9 +12,6 @@ struct lockd_net {
struct delayed_work grace_period_end;
struct lock_manager lockd_manager;
- spinlock_t nsm_clnt_lock;
- unsigned int nsm_users;
- struct rpc_clnt *nsm_clnt;
struct list_head nsm_handles;
};
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 0dff13f41808..5f31ebd96c06 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -592,7 +592,6 @@ static int lockd_init_net(struct net *net)
INIT_DELAYED_WORK(&ln->grace_period_end, grace_ender);
INIT_LIST_HEAD(&ln->lockd_manager.list);
ln->lockd_manager.block_opens = false;
- spin_lock_init(&ln->nsm_clnt_lock);
INIT_LIST_HEAD(&ln->nsm_handles);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 05:02:52 +0000