From: "J. Bruce Fields" <bfields@fieldses.org>
To: linux-fsdevel@vger.kernel.org
Cc: nfs@lists.sourceforge.net, Marc Eshel <eshel@almaden.ibm.com>
Subject: Re: asynchronous locks for cluster exports
Date: Mon, 26 Feb 2007 14:52:32 -0500 [thread overview]
Message-ID: <20070226195232.GC6412@fieldses.org> (raw)
On Sat, Feb 03, 2007 at 12:30:55AM -0500, J. Bruce Fields wrote:
>
> This is another attempt at a posix locking interface that allows us to
> provide NFS clients with cluster-coherent locking without blocking lockd
> while the filesystem goes off and talks to other nodes.
Marc and I have an updated version of this at:
git://linux-nfs.org/~bfields/linux.git
(See the server-cluster-locking-api branch.)
Changes include:
- bugfixes for GFS2; thanks to some setup help from Wendy Chang
and others, Marc has been able to run locking tests against an
nfs-exported GFS2 filesystem
- preallocation of storage for conflicting lock in lockd's
testlock implementation, to avoid a race identified by Trond
- Cleanup suggested by Christoph and others, including:
- creation of posix-to-flock helper functions
- rewrite of posix_test_lock interface to agree with
->lock( ,F_GETLK, )
- removal of some unnecessary parentheses, untangling of
some slightly tortured logic
We're hoping to get a detailed review from Trond sometime in the coming
month, after which we'll probably mailbomb linux-fsdevel again, but
any comments are welcome in the meantime.
--b.
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next reply other threads:[~2007-02-26 19:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-26 19:52 J. Bruce Fields [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-02-03 8:39 asynchronous locks for cluster exports Christoph Hellwig
2007-02-04 1:44 ` J. Bruce Fields
2007-02-03 5:30 J. Bruce Fields
2007-02-03 5:30 J. Bruce Fields
2006-12-06 5:34 J. Bruce Fields
2006-12-07 16:51 ` Christoph Hellwig
2006-12-14 22:51 ` J. Bruce Fields
2006-12-15 19:51 ` J. Bruce Fields
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