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authorJeff Layton <jlayton@redhat.com>2013-11-14 16:25:17 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-12-06 22:06:30 +0400
commit4b9a445e3eeb8bd9278b1ae51c1b3a651e370cd6 (patch)
tree883070dd3c7eaafc185787649c5591528478eb3b /net/sunrpc/sunrpc_syms.c
parentc7848f69ec4a8c03732cde5c949bd2aa711a9f4b (diff)
downloadlinux-4b9a445e3eeb8bd9278b1ae51c1b3a651e370cd6.tar.xz
sunrpc: create a new dummy pipe for gssd to hold open
rpc.gssd will naturally hold open any pipe named */clnt*/gssd that shows up under rpc_pipefs. That behavior gives us a reliable mechanism to tell whether it's actually running or not. Create a new toplevel "gssd" directory in rpc_pipefs when it's mounted. Under that directory create another directory called "clntXX", and then within that a pipe called "gssd". We'll never send an upcall along that pipe, and any downcall written to it will just return -EINVAL. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/sunrpc_syms.c')
-rw-r--r--net/sunrpc/sunrpc_syms.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 3d6498af9adc..cd30120de9e4 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -44,12 +44,17 @@ static __net_init int sunrpc_init_net(struct net *net)
if (err)
goto err_unixgid;
- rpc_pipefs_init_net(net);
+ err = rpc_pipefs_init_net(net);
+ if (err)
+ goto err_pipefs;
+
INIT_LIST_HEAD(&sn->all_clients);
spin_lock_init(&sn->rpc_client_lock);
spin_lock_init(&sn->rpcb_clnt_lock);
return 0;
+err_pipefs:
+ unix_gid_cache_destroy(net);
err_unixgid:
ip_map_cache_destroy(net);
err_ipmap:
@@ -60,6 +65,7 @@ err_proc:
static __net_exit void sunrpc_exit_net(struct net *net)
{
+ rpc_pipefs_exit_net(net);
unix_gid_cache_destroy(net);
ip_map_cache_destroy(net);
rpc_proc_exit(net);