From: Trond Myklebust <Trond.Myklebust@netapp.com>
To: Chuck Lever <chuck.lever@oracle.com>
Cc: Suresh Jayaraman <sjayaraman@suse.de>, Neil Brown <neilb@suse.de>,
Linux NFS mailing list <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 3/3] sunrpc: reduce timeout when unregistering rpcbind registrations.
Date: Mon, 06 Jul 2009 13:58:25 -0400 [thread overview]
Message-ID: <1246903105.23966.4.camel@heimdal.trondhjem.org> (raw)
In-Reply-To: <71D4E90D-471B-4BFA-B47C-6A5BFD0754E9@oracle.com>
On Mon, 2009-07-06 at 13:51 -0400, Chuck Lever wrote:
> In both cases, it turns out that the library implementations in user
> space already fail quickly. RPC_CANTRECV is returned if an attempt is
> made to send an rpcbind query to an inactive UDP port.
> RPC_SYSTEMERROR/ECONNREFUSED is returned if an attempt is made to send
> an rpcbind query to an inactive TCP port. In my view, the kernel is
> lacking here, and should be made to emulate user space more closely.
I fully agree that we can fix the above by more judicious interpretation
of the returned networking errors. What I don't see eye to eye with is
the assertion that has been floating about that the current behaviour
should be a good enough reason to add kernel AF_LOCAL support.
Trond
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@netapp.com
www.netapp.com
next prev parent reply other threads:[~2009-07-06 17:58 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-28 6:33 [nfsd PATCH 0/3] address issues with shutdown while portmap is dead NeilBrown
[not found] ` <20090528062730.15937.70579.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2009-05-28 6:33 ` [PATCH 1/3] nfsd: don't take nfsd_mutex twice when setting number of threads NeilBrown
[not found] ` <20090528063303.15937.55202.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2009-06-11 17:52 ` Jeff Layton
[not found] ` <20090611135255.0fa2f728-xSBYVWDuneFaJnirhKH9O4GKTjYczspe@public.gmane.org>
2009-06-11 18:01 ` Jeff Layton
2009-05-28 6:33 ` [PATCH 3/3] sunrpc: reduce timeout when unregistering rpcbind registrations NeilBrown
[not found] ` <20090528063303.15937.62423.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2009-05-28 13:07 ` Tom Talpey
2009-06-11 4:49 ` Neil Brown
[not found] ` <18992.36038.267957.467326-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2009-06-11 15:02 ` Chuck Lever
2009-05-28 13:43 ` Chuck Lever
2009-06-11 4:48 ` Neil Brown
[not found] ` <18992.35996.986951.556723-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2009-06-11 15:44 ` Chuck Lever
2009-07-02 20:04 ` Chuck Lever
2009-07-06 12:42 ` Suresh Jayaraman
2009-07-06 14:30 ` Chuck Lever
2009-07-06 16:08 ` Suresh Jayaraman
2009-07-06 16:22 ` Trond Myklebust
2009-07-06 16:31 ` Chuck Lever
2009-07-06 16:40 ` Trond Myklebust
[not found] ` <1246898450.11267.12.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2009-07-06 16:57 ` Chuck Lever
2009-07-06 17:14 ` Trond Myklebust
[not found] ` <1246900456.11267.34.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2009-07-06 17:51 ` Chuck Lever
2009-07-06 17:58 ` Trond Myklebust [this message]
[not found] ` <1246903105.23966.4.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2009-07-06 18:32 ` Chuck Lever
2009-05-28 6:33 ` [PATCH 2/3] nfsd: optimise the starting of zero threads when none are running NeilBrown
[not found] ` <20090528063303.15937.57966.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2009-06-11 17:26 ` Jeff Layton
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