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SubjectRe: [PATCH 3/5] SUNRPC: make RPC service dependable on rpcbind clients creation
This patch has a flaw: rpcbind clients have to be put in case of error in __svc_create().
So will be the second version.

24.08.2011 22:33, Stanislav Kinsbursky пишет:
> We create or increase users counter of rcbind clients during RPC service
> creation and decrease this counter (and possibly destroy those clients) on RPC
> service destruction.
>
> Signed-off-by: Stanislav Kinsbursky<skinsbursky@parallels.com>
>
> ---
> include/linux/sunrpc/clnt.h | 2 ++
> net/sunrpc/rpcb_clnt.c | 2 +-
> net/sunrpc/svc.c | 5 +++++
> 3 files changed, 8 insertions(+), 1 deletions(-)
>
> diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
> index db7bcaf..65a8115 100644
> --- a/include/linux/sunrpc/clnt.h
> +++ b/include/linux/sunrpc/clnt.h
> @@ -135,10 +135,12 @@ void rpc_shutdown_client(struct rpc_clnt *);
> void rpc_release_client(struct rpc_clnt *);
> void rpc_task_release_client(struct rpc_task *);
>
> +int rpcb_create_local(void);
> int rpcb_register(u32, u32, int, unsigned short);
> int rpcb_v4_register(const u32 program, const u32 version,
> const struct sockaddr *address,
> const char *netid);
> +void rpcb_put_local(void);
> void rpcb_getport_async(struct rpc_task *);
>
> void rpc_call_start(struct rpc_task *);
> diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
> index b4cc0f1..437ec60 100644
> --- a/net/sunrpc/rpcb_clnt.c
> +++ b/net/sunrpc/rpcb_clnt.c
> @@ -318,7 +318,7 @@ out:
> * Returns zero on success, otherwise a negative errno value
> * is returned.
> */
> -static int rpcb_create_local(void)
> +int rpcb_create_local(void)
> {
> static DEFINE_MUTEX(rpcb_create_local_mutex);
> int result = 0;
> diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
> index 6a69a11..0df8532 100644
> --- a/net/sunrpc/svc.c
> +++ b/net/sunrpc/svc.c
> @@ -367,6 +367,9 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
> unsigned int xdrsize;
> unsigned int i;
>
> + if (rpcb_create_local()< 0)
> + return NULL;
> +
> if (!(serv = kzalloc(sizeof(*serv), GFP_KERNEL)))
> return NULL;
> serv->sv_name = prog->pg_name;
> @@ -491,6 +494,8 @@ svc_destroy(struct svc_serv *serv)
> svc_unregister(serv);
> kfree(serv->sv_pools);
> kfree(serv);
> +
> + rpcb_put_local();
> }
> EXPORT_SYMBOL_GPL(svc_destroy);
>
>
> --
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--
Best regards,
Stanislav Kinsbursky
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