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SUNRPC: create unix gid cache per network namespace

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v2:
1) fixed silly usage of template cache as a real one (this code left from
static global cache for all)

This patch makes unix_gid_cache cache detail allocated and registered per
network namespace context.
Thus with this patch unix_gid_cache contents for network namespace "X" are
controlled from proc file system mount for the same network namespace "X".

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Stanislav Kinsbursky
2012-01-19 21:42:29 +04:00
committed by Trond Myklebust
parent 0a402d5a65
commit 73393232d6
3 changed files with 52 additions and 18 deletions
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14
net/sunrpc/sunrpc_syms.c
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@@ -26,6 +26,9 @@
int sunrpc_net_id;
extern int unix_gid_cache_create(struct net *net);
extern int unix_gid_cache_destroy(struct net *net);
static __net_init int sunrpc_init_net(struct net *net)
{
int err;
@@ -39,11 +42,17 @@ static __net_init int sunrpc_init_net(struct net *net)
if (err)
goto err_ipmap;
err = unix_gid_cache_create(net);
if (err)
goto err_unixgid;
rpc_pipefs_init_net(net);
INIT_LIST_HEAD(&sn->all_clients);
spin_lock_init(&sn->rpc_client_lock);
return 0;
err_unixgid:
ip_map_cache_destroy(net);
err_ipmap:
rpc_proc_exit(net);
err_proc:
@@ -52,6 +61,7 @@ err_proc:
static __net_exit void sunrpc_exit_net(struct net *net)
{
unix_gid_cache_destroy(net);
ip_map_cache_destroy(net);
rpc_proc_exit(net);
}
@@ -63,8 +73,6 @@ static struct pernet_operations sunrpc_net_ops = {
.size = sizeof(struct sunrpc_net),
};
extern struct cache_detail unix_gid_cache;
static int __init
init_sunrpc(void)
{
@@ -86,7 +94,6 @@ init_sunrpc(void)
#ifdef RPC_DEBUG
rpc_register_sysctl();
#endif
cache_register(&unix_gid_cache);
svc_init_xprt_sock(); /* svc sock transport */
init_socket_xprt(); /* clnt sock transport */
return 0;
@@ -109,7 +116,6 @@ cleanup_sunrpc(void)
svc_cleanup_xprt_sock();
unregister_rpc_pipefs();
rpc_destroy_mempool();
cache_unregister(&unix_gid_cache);
unregister_pernet_subsys(&sunrpc_net_ops);
#ifdef RPC_DEBUG
rpc_unregister_sysctl();