From: "J. Bruce Fields" <bfields-uC3wQj2KruNg9hUCZPvPmw@public•gmane.org>
To: Stanislav Kinsbursky
<skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public•gmane.org>
Cc: Trond.Myklebust-HgOvQuBEEgTQT0dZR+AlfA@public•gmane.org,
linux-nfs-u79uwXL29TY76Z2rM5mHXA@public•gmane.org,
xemul-bzQdu9zFT3WakBO8gow8eQ@public•gmane.org,
neilb-l3A5Bk7waGM@public•gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public•gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public•gmane.org,
davem-fT/PcQaiUtIeIZ0/mPfg9Q@public•gmane.org,
devel-GEFAQzZX7r8dnm+yROfE0A@public•gmane.org
Subject: Re: [PATCH v6 4/8] SUNRPC: setup rpcbind clients if service requires it
Date: Thu, 27 Oct 2011 17:27:32 -0400 [thread overview]
Message-ID: <20111027212732.GC31669@fieldses.org> (raw)
In-Reply-To: <20111025101705.12689.68022.stgit-bi+AKbBUZKagILUCTcTcHdKyNwTtLsGr@public.gmane.org>
On Tue, Oct 25, 2011 at 02:17:08PM +0300, Stanislav Kinsbursky wrote:
> New function ("svc_uses_rpcbind") will be used to detect, that new service will
> send portmapper register calls. For such services we will create rpcbind
> clients and remove all stale portmap registrations.
> Also, svc_rpcb_cleanup() will be set as sv_shutdown callback for such services
> in case of this field wasn't initialized earlier. This will allow to destroy
> rpcbind clients when no other users of them left.
>
> Note: Currently, any creating service will be detected as portmap user.
> Probably, this is wrong. But now it depends on program versions "vs_hidden"
> flag.
>
> Signed-off-by: Stanislav Kinsbursky <skinsbursky-bzQdu9zFT3WakBO8gow8eQ@public•gmane.org>
>
> ---
> net/sunrpc/svc.c | 11 +++++++++--
> 1 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
> index d2d61bf..918edc3 100644
> --- a/net/sunrpc/svc.c
> +++ b/net/sunrpc/svc.c
> @@ -454,8 +454,15 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
> spin_lock_init(&pool->sp_lock);
> }
>
> - /* Remove any stale portmap registrations */
> - svc_unregister(serv);
> + if (svc_uses_rpcbind(serv)) {
> + if (svc_rpcb_setup(serv) < 0) {
> + kfree(serv->sv_pools);
> + kfree(serv);
> + return NULL;
Nit: could we convert this (and the previous failure to allocate
sv_pools) to the usual pattern of collecting the cleanup at the end and
jumping to it with a goto?
Looks fine otherwise.
--b.
> + }
> + if (!serv->sv_shutdown)
> + serv->sv_shutdown = svc_rpcb_cleanup;
> + }
>
> return serv;
> }
>
--
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next prev parent reply other threads:[~2011-10-27 21:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-25 11:15 [PATCH v6 0/8] SUNRPC: make rpcbind clients allocated and destroyed dynamically Stanislav Kinsbursky
2011-10-25 11:16 ` [PATCH v6 1/8] SUNRPC: introduce helpers for reference counted rpcbind clients Stanislav Kinsbursky
[not found] ` <20111025101608.12689.68689.stgit-bi+AKbBUZKagILUCTcTcHdKyNwTtLsGr@public.gmane.org>
2011-10-25 11:16 ` Trond Myklebust
2011-10-25 12:41 ` Stanislav Kinsbursky
[not found] ` <4EA6AE87.5000309-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2011-10-25 12:45 ` Trond Myklebust
2011-10-25 13:25 ` Stanislav Kinsbursky
2011-10-25 11:16 ` [PATCH v6 2/8] SUNRPC: use rpcbind reference counting helpers Stanislav Kinsbursky
2011-10-25 11:16 ` [PATCH v6 3/8] SUNRPC: introduce svc helpers for prepairing rpcbind infrastructure Stanislav Kinsbursky
2011-10-25 11:17 ` [PATCH v6 4/8] SUNRPC: setup rpcbind clients if service requires it Stanislav Kinsbursky
[not found] ` <20111025101705.12689.68022.stgit-bi+AKbBUZKagILUCTcTcHdKyNwTtLsGr@public.gmane.org>
2011-10-27 21:27 ` J. Bruce Fields [this message]
2011-10-28 9:27 ` Stanislav Kinsbursky
2011-10-25 11:17 ` [PATCH v6 5/8] SUNRPC: cleanup service destruction Stanislav Kinsbursky
2011-10-27 21:30 ` J. Bruce Fields
2011-10-28 9:49 ` Stanislav Kinsbursky
2011-10-25 11:17 ` [PATCH v6 6/8] NFSd: call svc rpcbind cleanup explicitly Stanislav Kinsbursky
2011-10-25 11:17 ` [PATCH v6 7/8] SUNRPC: remove rpcbind clients creation during service registering Stanislav Kinsbursky
2011-10-25 11:17 ` [PATCH v6 8/8] SUNRPC: remove rpcbind clients destruction on module cleanup Stanislav Kinsbursky
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