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SUNRPC: Auto-load RPC authentication kernel modules

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This patch adds a request_module call to rpcauth_create which will try
to auto-load the kernel module for the requested authentication flavor.
For kernels with modular sunrpc, this reduces the admin overhead for
the user.

Signed-off-by: Olaf Kirch <okir@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Olaf Kirch 2006-03-20 13:44:08 -05:00 committed by Trond Myklebust
parent fb374d24f2
commit f344f6df4b
1 changed files with 14 additions and 2 deletions
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16
net/sunrpc/auth.c
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@ -64,14 +64,26 @@ rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt)
struct rpc_authops *ops; struct rpc_authops *ops;
u32 flavor = pseudoflavor_to_flavor(pseudoflavor); u32 flavor = pseudoflavor_to_flavor(pseudoflavor);
if (flavor >= RPC_AUTH_MAXFLAVOR || !(ops = auth_flavors[flavor])) auth = ERR_PTR(-EINVAL);
return ERR_PTR(-EINVAL); if (flavor >= RPC_AUTH_MAXFLAVOR)
goto out;
/* FIXME - auth_flavors[] really needs an rw lock,
* and module refcounting. */
#ifdef CONFIG_KMOD
if ((ops = auth_flavors[flavor]) == NULL)
request_module("rpc-auth-%u", flavor);
#endif
if ((ops = auth_flavors[flavor]) == NULL)
goto out;
auth = ops->create(clnt, pseudoflavor); auth = ops->create(clnt, pseudoflavor);
if (IS_ERR(auth)) if (IS_ERR(auth))
return auth; return auth;
if (clnt->cl_auth) if (clnt->cl_auth)
rpcauth_destroy(clnt->cl_auth); rpcauth_destroy(clnt->cl_auth);
clnt->cl_auth = auth; clnt->cl_auth = auth;
out:
return auth; return auth;
} }