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From: Peter Staubach <staubach@redhat.com>
To: "J. Bruce Fields" <bfields@fieldses.org>
Cc: linux-fsdevel@vger.kernel.org, nfs@lists.sourceforge.net,
	"J. Bruce Fields" <bfields@citi.umich.edu>,
	David Teigland <teigland@redhat.com>,
	Marc Eshel <eshel@almaden.ibm.com>
Subject: Re: [PATCH] locks: provide a file lease method enabling	cluster-coherent leases
Date: Fri, 01 Jun 2007 09:14:53 -0400	[thread overview]
Message-ID: <46601BCD.8050609@redhat.com> (raw)
In-Reply-To: <11806476252913-git-send-email-bfields@fieldses.org>

J. Bruce Fields wrote:
> From: J. Bruce Fields <bfields@fieldses.org>
>
> Currently leases are only kept locally, so there's no way for a distributed
> filesystem to enforce them against multiple clients.  We're particularly
> interested in the case of nfsd exporting a cluster filesystem, in which
> case nfsd needs cluster-coherent leases in order to implement delegations
> correctly.

A couple of naive questions --

Do the semantics of these leases really match the requirements from NFSv4?
Does the internal NFSv4 server state also need to be shared?

    Thanx...

       ps

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  parent reply	other threads:[~2007-06-01 13:15 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-31 21:40 cluster-coherent leases J. Bruce Fields
2007-05-31 21:40 ` [PATCH] locks: share more common lease code J. Bruce Fields
2007-05-31 21:40   ` [PATCH] locks: provide a file lease method enabling cluster-coherent leases J. Bruce Fields
2007-05-31 21:40     ` [PATCH] gfs2: stop giving out non-cluster-coherent leases J. Bruce Fields
2007-05-31 22:34     ` [PATCH] locks: provide a file lease method enabling cluster-coherent leases Trond Myklebust
2007-06-01 16:53       ` [NFS] " J. Bruce Fields
2007-06-02 17:39         ` Trond Myklebust
2007-06-02 18:09           ` Marc Eshel
2007-06-02 18:21             ` Trond Myklebust
2007-06-04 13:59               ` J. Bruce Fields
2007-06-05 22:04                 ` Robert Rappaport
2007-06-05 22:53                   ` [NFS] " Trond Myklebust
2007-06-05 22:56                   ` Marc Eshel
2007-06-05 23:40                     ` Trond Myklebust
2007-06-06 18:43                       ` Robert Rappaport
2007-06-07 14:43                         ` [NFS] " Robert Rappaport
2007-06-07 17:05                           ` J. Bruce Fields
2007-06-08 22:14                             ` (no subject) J. Bruce Fields
2007-06-08 22:14                             ` (unknown), J. Bruce Fields
     [not found]                             ` <11813408953536-git-send-email->
2007-06-08 22:14                               ` [PATCH 1/5] locks: share more common lease code J. Bruce Fields
2007-06-08 22:14                               ` J. Bruce Fields
     [not found]                               ` <11813408952518-git-send-email->
2007-06-08 22:14                                 ` [PATCH 2/5] locks: provide a file lease method enabling cluster-coherent leases J. Bruce Fields
2007-06-08 22:14                                 ` J. Bruce Fields
     [not found]                                 ` <11813408951909-git-send-email->
2007-06-08 22:14                                   ` [PATCH 3/5] locks: rename lease functions to reflect locks.c conventions J. Bruce Fields
2007-06-08 22:14                                   ` J. Bruce Fields
     [not found]                                   ` <11813408954053-git-send-email->
2007-06-08 22:14                                     ` [PATCH 4/5] gfs2: stop giving out non-cluster-coherent leases J. Bruce Fields
2007-06-08 22:14                                     ` J. Bruce Fields
     [not found]                                     ` <11813408951694-git-send-email->
2007-06-08 22:14                                       ` [PATCH 5/5] nfs: disable leases over NFS J. Bruce Fields
2007-06-08 22:14                                       ` J. Bruce Fields
2007-06-09 14:18                                       ` [PATCH 4/5] gfs2: stop giving out non-cluster-coherent leases Steven Whitehouse
2007-06-09 16:35                                         ` Marc Eshel
2007-06-11  9:38                                           ` Steven Whitehouse
2007-06-11 17:07                                             ` J. Bruce Fields
2007-06-09 16:56                                     ` [PATCH 3/5] locks: rename lease functions to reflect locks.c conventions Marc Eshel
2007-06-11 16:53                                       ` J. Bruce Fields
2007-06-02 18:23             ` [NFS] [PATCH] locks: provide a file lease method enabling cluster-coherent leases Trond Myklebust
2007-06-01 13:14     ` Peter Staubach [this message]
2007-06-01 16:44       ` J. Bruce Fields
2007-06-01 17:41         ` Matthew Wilcox
2007-06-01 18:08           ` J. Bruce Fields
2007-05-31 21:51   ` [PATCH] locks: share more common lease code Trond Myklebust
2007-06-01 16:30     ` [NFS] " J. Bruce Fields
2007-06-01 16:36       ` Trond Myklebust

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