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NFS: Ensure the AUTH_UNIX credcache is allocated dynamically

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2010-07-31 14:29:07 -04:00
parent d05dd4e98f
commit 5d8d9a4d9f
5 changed files with 40 additions and 28 deletions
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7
include/linux/sunrpc/auth.h
View file

@ -125,11 +125,12 @@ struct rpc_credops {
extern const struct rpc_authops authunix_ops;
extern const struct rpc_authops authnull_ops;
void __init rpc_init_authunix(void);
void __init rpc_init_generic_auth(void);
void __init rpcauth_init_module(void);
int __init rpc_init_authunix(void);
int __init rpc_init_generic_auth(void);
int __init rpcauth_init_module(void);
void __exit rpcauth_remove_module(void);
void __exit rpc_destroy_generic_auth(void);
void rpc_destroy_authunix(void);
struct rpc_cred * rpc_lookup_cred(void);
struct rpc_cred * rpc_lookup_machine_cred(void);

19
net/sunrpc/auth.c
View file

@ -587,14 +587,27 @@ static struct shrinker rpc_cred_shrinker = {
.seeks = DEFAULT_SEEKS,
};
void __init rpcauth_init_module(void)
int __init rpcauth_init_module(void)
{
rpc_init_authunix();
rpc_init_generic_auth();
int err;
err = rpc_init_authunix();
if (err < 0)
goto out1;
err = rpc_init_generic_auth();
if (err < 0)
goto out2;
register_shrinker(&rpc_cred_shrinker);
return 0;
out2:
rpc_destroy_authunix();
out1:
return err;
}
void __exit rpcauth_remove_module(void)
{
rpc_destroy_authunix();
rpc_destroy_generic_auth();
unregister_shrinker(&rpc_cred_shrinker);
}

12
net/sunrpc/auth_generic.c
View file

@ -27,7 +27,6 @@ struct generic_cred {
};
static struct rpc_auth generic_auth;
static struct rpc_cred_cache generic_cred_cache;
static const struct rpc_credops generic_credops;
/*
@ -159,20 +158,16 @@ out_nomatch:
return 0;
}
void __init rpc_init_generic_auth(void)
int __init rpc_init_generic_auth(void)
{
spin_lock_init(&generic_cred_cache.lock);
return rpcauth_init_credcache(&generic_auth);
}
void __exit rpc_destroy_generic_auth(void)
{
rpcauth_clear_credcache(&generic_cred_cache);
rpcauth_destroy_credcache(&generic_auth);
}
static struct rpc_cred_cache generic_cred_cache = {
{{ NULL, },},
};
static const struct rpc_authops generic_auth_ops = {
.owner = THIS_MODULE,
.au_name = "Generic",
@ -183,7 +178,6 @@ static const struct rpc_authops generic_auth_ops = {
static struct rpc_auth generic_auth = {
.au_ops = &generic_auth_ops,
.au_count = ATOMIC_INIT(0),
.au_credcache = &generic_cred_cache,
};
static const struct rpc_credops generic_credops = {

15
net/sunrpc/auth_unix.c
View file

@ -29,7 +29,6 @@ struct unx_cred {
#endif
static struct rpc_auth unix_auth;
static struct rpc_cred_cache unix_cred_cache;
static const struct rpc_credops unix_credops;
static struct rpc_auth *
@ -203,9 +202,14 @@ unx_validate(struct rpc_task *task, __be32 *p)
return p;
}
void __init rpc_init_authunix(void)
int __init rpc_init_authunix(void)
{
spin_lock_init(&unix_cred_cache.lock);
return rpcauth_init_credcache(&unix_auth);
}
void rpc_destroy_authunix(void)
{
rpcauth_destroy_credcache(&unix_auth);
}
const struct rpc_authops authunix_ops = {
@ -218,10 +222,6 @@ const struct rpc_authops authunix_ops = {
.crcreate = unx_create_cred,
};
static
struct rpc_cred_cache unix_cred_cache = {
};
static
struct rpc_auth unix_auth = {
.au_cslack = UNX_WRITESLACK,
@ -229,7 +229,6 @@ struct rpc_auth unix_auth = {
.au_ops = &authunix_ops,
.au_flavor = RPC_AUTH_UNIX,
.au_count = ATOMIC_INIT(0),
.au_credcache = &unix_cred_cache,
};
static

15
net/sunrpc/sunrpc_syms.c
View file

@ -33,10 +33,11 @@ init_sunrpc(void)
if (err)
goto out;
err = rpc_init_mempool();
if (err) {
unregister_rpc_pipefs();
goto out;
}
if (err)
goto out2;
err = rpcauth_init_module();
if (err)
goto out3;
#ifdef RPC_DEBUG
rpc_register_sysctl();
#endif
@ -47,7 +48,11 @@ init_sunrpc(void)
cache_register(&unix_gid_cache);
svc_init_xprt_sock(); /* svc sock transport */
init_socket_xprt(); /* clnt sock transport */
rpcauth_init_module();
return 0;
out3:
rpc_destroy_mempool();
out2:
unregister_rpc_pipefs();
out:
return err;
}