diff options
author | Benny Halevy <bhalevy@panasas.com> | 2009-04-01 13:23:09 (GMT) |
---|---|---|
committer | Benny Halevy <bhalevy@panasas.com> | 2009-06-17 21:11:30 (GMT) |
commit | 7652e5a09ba319241607b22d9055ce93fd5b8039 (patch) | |
tree | 9d1d491af237dffb1593ed8f2351ebda36b32972 /net | |
parent | a43cde94feded0f65fce36330614691c650ae8fe (diff) | |
download | linux-fsl-qoriq-7652e5a09ba319241607b22d9055ce93fd5b8039.tar.xz |
nfs41: sunrpc: provide functions to create and destroy a svc_xprt for backchannel use
For nfs41 callbacks we need an svc_xprt to process requests coming up the
backchannel socket as rpc_rqst's that are transformed into svc_rqst's that
need a rq_xprt to be processed.
The svc_{udp,tcp}_create methods are too heavy for this job as svc_create_socket
creates an actual socket to listen on while for nfs41 we're "reusing" the
fore channel's socket.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Diffstat (limited to 'net')
-rw-r--r-- | net/sunrpc/svcsock.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 9d50423..a2a03e5 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -1327,3 +1327,42 @@ static void svc_sock_free(struct svc_xprt *xprt) sock_release(svsk->sk_sock); kfree(svsk); } + +/* + * Create a svc_xprt. + * + * For internal use only (e.g. nfsv4.1 backchannel). + * Callers should typically use the xpo_create() method. + */ +struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot) +{ + struct svc_sock *svsk; + struct svc_xprt *xprt = NULL; + + dprintk("svc: %s\n", __func__); + svsk = kzalloc(sizeof(*svsk), GFP_KERNEL); + if (!svsk) + goto out; + + xprt = &svsk->sk_xprt; + if (prot == IPPROTO_TCP) + svc_xprt_init(&svc_tcp_class, xprt, serv); + else if (prot == IPPROTO_UDP) + svc_xprt_init(&svc_udp_class, xprt, serv); + else + BUG(); +out: + dprintk("svc: %s return %p\n", __func__, xprt); + return xprt; +} +EXPORT_SYMBOL_GPL(svc_sock_create); + +/* + * Destroy a svc_sock. + */ +void svc_sock_destroy(struct svc_xprt *xprt) +{ + if (xprt) + kfree(container_of(xprt, struct svc_sock, sk_xprt)); +} +EXPORT_SYMBOL_GPL(svc_sock_destroy); |