From: Trond Myklebust <Trond.Myklebust@netapp.com>
To: Benny Halevy <bhalevy@panasas.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Fred Isaman <iisaman@netapp.com>,
linux-nfs@vger.kernel.org
Subject: Re: [PATCH 07/13] RFC: pnfs: full mount/umount infrastructure
Date: Mon, 13 Sep 2010 12:55:14 -0400 [thread overview]
Message-ID: <1284396914.6466.7.camel@heimdal.trondhjem.org> (raw)
In-Reply-To: <4C8E3733.2000607@panasas.com>
On Mon, 2010-09-13 at 16:37 +0200, Benny Halevy wrote:
> On 2010-09-13 14:29, Trond Myklebust wrote:
> > On Mon, 2010-09-13 at 13:24 +0200, Benny Halevy wrote:
> >> On 2010-09-11 03:07, Trond Myklebust wrote:
> >>> On Fri, 2010-09-10 at 19:58 -0400, Christoph Hellwig wrote:
> >>>>> +EXPORT_SYMBOL(pnfs_register_layoutdriver);
> >>>>
> >>>> Al exports from nfs.ko needs to be _GPL - this is in no way a public
> >>>> API, just an internal subdivision of the nfs client.
> >>>
> >>> ACK. We're not committing to supporting a stable ABI here in any way,
> >>> shape or form...
> >>
> >> OK, not yet.
> >>
> >> However, on the longer run I'd like us to consider formalizing
> >> the kABI for non-GPLed layout drivers.
> >>
> >> I think that this is a great selling point as it fully materializes the
> >> extensibility of the layout-type / layout-driver design model.
> >
> > No. I'm not committing to a kabi, ever...
>
> Care to explain your reasoning in some more details?
It has already been laid out in Documentation/stable_api_nonsense.txt.
It boils down to the following:
1) I don't _ever_ want to have to deal with debugging problems that
might involve binary-only modules.
2) I want to be able to change interfaces in order to optimise/improve
the code as needed without having to check in with a bunch of
out-of-tree maintainers about whether or not it is 'OK' to do so.
3) I don't see a need for linking to non-GPLed code.
Trond
next prev parent reply other threads:[~2010-09-13 16:56 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-02 18:00 [PATCH 00/13] RFC: pnfs: LAYOUTGET/DEVINFO submission Fred Isaman
2010-09-02 18:00 ` [PATCH 01/13] NFSD: remove duplicate NFS4_STATEID_SIZE Fred Isaman
2010-09-02 18:00 ` [PATCH 02/13] SUNRPC: define xdr_decode_opaque_fixed Fred Isaman
2010-09-02 18:00 ` [PATCH 03/13] RFC: pnfsd, pnfs: protocol level pnfs constants Fred Isaman
2010-09-02 18:00 ` [PATCH 04/13] RFC: nfs: change stateid to be a union Fred Isaman
2010-09-02 18:00 ` [PATCH 05/13] RFC: nfs: ask for layouttypes during fsinfo call Fred Isaman
2010-09-02 18:00 ` [PATCH 06/13] RFC: nfs: set layout driver Fred Isaman
2010-09-02 18:00 ` [PATCH 07/13] RFC: pnfs: full mount/umount infrastructure Fred Isaman
2010-09-10 19:23 ` Trond Myklebust
[not found] ` <1284146604.10062.68.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2010-09-10 20:53 ` Fred Isaman
2010-09-13 11:06 ` Boaz Harrosh
2010-09-13 14:44 ` Christoph Hellwig
2010-09-13 15:14 ` Boaz Harrosh
2010-09-13 11:20 ` Benny Halevy
2010-09-10 23:58 ` Christoph Hellwig
2010-09-11 0:07 ` Trond Myklebust
2010-09-13 11:24 ` Benny Halevy
2010-09-13 12:29 ` Trond Myklebust
2010-09-13 14:37 ` Benny Halevy
2010-09-13 16:55 ` Trond Myklebust [this message]
2010-09-13 14:28 ` Christoph Hellwig
2010-09-13 14:39 ` Benny Halevy
2010-09-13 15:07 ` Christoph Hellwig
2010-09-13 15:27 ` Fred Isaman
2010-09-02 18:00 ` [PATCH 08/13] RFC: pnfs: filelayout: introduce minimal file layout driver Fred Isaman
2010-09-10 19:31 ` Trond Myklebust
2010-09-10 21:11 ` Fred Isaman
2010-09-10 22:37 ` Trond Myklebust
2010-09-13 10:32 ` Benny Halevy
2010-09-13 13:01 ` Fred Isaman
[not found] ` <AANLkTimONZfA6ZX4xtzbmy0NdfEtbwMAi+__PhFYznTn-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-09-13 14:23 ` Benny Halevy
2010-09-13 14:48 ` Christoph Hellwig
2010-09-13 10:16 ` Benny Halevy
2010-09-10 23:56 ` Christoph Hellwig
2010-09-11 0:03 ` Trond Myklebust
2010-09-11 0:07 ` Christoph Hellwig
2010-09-11 0:13 ` Trond Myklebust
2010-09-13 11:28 ` Benny Halevy
2010-09-13 15:08 ` Christoph Hellwig
2010-09-13 15:16 ` Fred Isaman
2010-09-02 18:00 ` [PATCH 09/13] RFC: nfs: create and destroy inode's layout cache Fred Isaman
2010-09-10 19:43 ` Trond Myklebust
[not found] ` <1284147785.10062.80.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2010-09-10 21:13 ` Fred Isaman
2010-09-13 11:32 ` Benny Halevy
2010-09-02 18:00 ` [PATCH 10/13] RFC: nfs: client needs to maintain list of inodes with active layouts Fred Isaman
2010-09-10 19:59 ` Trond Myklebust
[not found] ` <1284148768.10062.94.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2010-09-10 21:18 ` Fred Isaman
2010-09-02 18:00 ` [PATCH 11/13] RFC: nfs: retry on certain pnfs errors Fred Isaman
2010-09-02 18:00 ` [PATCH 12/13] RFC: pnfs: add LAYOUTGET and GETDEVICEINFO infrastructure Fred Isaman
2010-09-10 20:11 ` Trond Myklebust
2010-09-10 21:47 ` Fred Isaman
2010-09-10 22:43 ` Trond Myklebust
2010-09-13 14:16 ` Benny Halevy
2010-09-02 18:00 ` [PATCH 13/13] RFC: pnfs: filelayout: add driver's " Fred Isaman
2010-09-10 20:33 ` Trond Myklebust
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