From: Jeremy Allison <jra@samba.org>
To: Volker Lendecke <Volker.Lendecke@SerNet.DE>
Cc: Jeremy Allison <jra@samba.org>,
Trond Myklebust <trond.myklebust@fys.uio.no>,
Linus Torvalds <torvalds@linux-foundation.org>,
David Howells <dhowells@redhat.com>,
Jan Engelhardt <jengelh@medozas.de>,
linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org,
samba-technical@lists.samba.org, linux-kernel@vger.kernel.org,
viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org,
linux-ext4@vger.kernel.org
Subject: Re: [PATCH 02/18] xstat: Add a pair of system calls to make extended file stats available [ver #6]
Date: Thu, 22 Jul 2010 11:07:51 -0700 [thread overview]
Message-ID: <20100722180751.GC32008@samba1> (raw)
In-Reply-To: <E1Oc08W-00CZuz-Ns@intern.SerNet.DE>
On Thu, Jul 22, 2010 at 08:04:41PM +0200, Volker Lendecke wrote:
> On Thu, Jul 22, 2010 at 11:02:04AM -0700, Jeremy Allison wrote:
> > On Thu, Jul 22, 2010 at 12:58:50PM -0400, Trond Myklebust wrote:
> > >
> > > That would make it impossible to export the filesystem with NFSv2 and
> > > v3. They do rely on ctime checking for certain operations (e.g. deciding
> > > when to invalidate access and acl caches). NFSv4 needs this too if the
> > > filesystem has no dedicated change attribute.
> > >
> > > Still, I suppose the market for exporting the same filesystem with both
> > > NFS and Samba is limited...
> >
> > Ask NetApp about that :-). They have built a rather large
> > business on just that fact :-).
>
> Jeremy, how many hours have you spent getting "posix
> locking" to the point where it is now? :-)
>
> Volker
>
> P.S: For those not aware, "posix locking = yes" is
> cross-protocol byte range locking done by smbd to co-operate
> with local processes and NFS.
The time is counted in years, not hours :-).
next prev parent reply other threads:[~2010-07-22 18:07 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-15 2:17 [PATCH 00/18] Extended file stat functions [ver #6] David Howells
2010-07-15 2:17 ` [PATCH 01/18] Mark arguments to certain syscalls as being const " David Howells
2010-07-15 2:17 ` [PATCH 02/18] xstat: Add a pair of system calls to make extended file stats available " David Howells
2010-07-15 20:35 ` Arnd Bergmann
2010-07-15 21:53 ` David Howells
2010-07-16 10:46 ` Arnd Bergmann
2010-07-16 15:10 ` David Howells
2010-07-16 6:22 ` Mark Harris
2010-07-16 10:24 ` David Howells
2010-07-16 11:02 ` Arnd Bergmann
2010-07-16 12:38 ` David Howells
2010-07-16 13:32 ` Arnd Bergmann
2010-07-17 5:51 ` Mark Harris
2010-07-17 9:00 ` Arnd Bergmann
2010-07-17 9:49 ` David Howells
2010-07-18 8:48 ` Christoph Hellwig
2010-07-19 14:05 ` David Howells
2010-07-22 10:52 ` Jan Engelhardt
2010-07-22 12:25 ` David Howells
2010-07-19 15:17 ` Linus Torvalds
2010-07-19 16:15 ` David Howells
2010-07-19 16:51 ` Linus Torvalds
2010-07-19 17:26 ` David Howells
2010-07-19 17:46 ` Linus Torvalds
2010-07-20 8:28 ` Andreas Dilger
2010-07-22 10:35 ` Jan Engelhardt
2010-07-22 12:14 ` David Howells
2010-07-22 12:17 ` Volker Lendecke
2010-07-22 13:05 ` Jan Engelhardt
2010-07-22 15:14 ` Linus Torvalds
2010-07-22 15:36 ` Volker Lendecke
2010-07-22 15:47 ` Linus Torvalds
2010-07-22 16:06 ` Greg Freemyer
2010-07-22 16:07 ` Greg Freemyer
2010-07-22 16:25 ` Jan Engelhardt
2010-07-22 16:27 ` Jeremy Allison
2010-07-22 16:40 ` Linus Torvalds
2010-07-22 16:58 ` Trond Myklebust
2010-07-22 18:02 ` Jeremy Allison
2010-07-22 18:04 ` Volker Lendecke
2010-07-22 18:07 ` Jeremy Allison [this message]
2010-07-22 18:59 ` Trond Myklebust
2010-07-30 17:55 ` Phil Pishioneri
2010-07-30 18:11 ` Trond Myklebust
2010-07-30 18:19 ` Phil Pishioneri
2010-07-31 18:41 ` Andreas Dilger
2010-07-31 18:48 ` Jan Engelhardt
2010-07-31 19:03 ` Trond Myklebust
2010-07-31 21:20 ` Jan Engelhardt
2010-08-01 13:17 ` Jeff Layton
2010-07-22 18:05 ` Jan Engelhardt
2010-07-22 18:07 ` Jeremy Allison
2010-07-22 19:18 ` John Stoffel
2010-07-22 17:03 ` Jan Engelhardt
2010-07-22 17:16 ` Trond Myklebust
2010-07-22 17:36 ` Jan Engelhardt
2010-07-22 17:24 ` Linus Torvalds
2010-07-22 18:15 ` Jeremy Allison
2010-07-22 18:21 ` Benny Halevy
2010-07-22 18:45 ` Greg Freemyer
2010-07-22 19:53 ` Benny Halevy
2010-07-22 18:41 ` Greg Freemyer
2010-07-28 1:15 ` Neil Brown
2010-07-28 17:28 ` David Howells
2010-07-28 23:04 ` Neil Brown
2010-07-29 16:15 ` David Howells
2010-08-03 1:13 ` Neil Brown
2010-07-30 18:38 ` J. Bruce Fields
2010-08-01 13:40 ` Jeff Layton
2010-08-02 14:09 ` Greg Freemyer
2010-08-02 14:42 ` Jeff Layton
2010-07-22 17:12 ` Jim Rees
2010-07-22 17:32 ` Linus Torvalds
2010-07-23 1:03 ` tridge
2010-07-23 1:21 ` Ted Ts'o
2010-07-23 2:12 ` tridge
2010-07-23 9:14 ` Björn Jacke
2010-07-30 21:22 ` utz lehmann
2010-07-31 8:08 ` Jan Engelhardt
2010-07-31 14:43 ` utz lehmann
2010-07-31 16:53 ` David Howells
2010-07-31 18:05 ` utz lehmann
2010-07-31 19:26 ` David Howells
2010-08-01 13:25 ` Jeff Layton
2010-08-05 23:52 ` Jeremy Allison
2010-08-06 3:38 ` Neil Brown
2010-08-06 3:55 ` Steve French
2010-08-06 11:18 ` Jeff Layton
2010-08-06 23:30 ` Neil Brown
2010-08-06 23:58 ` Steve French
2010-08-07 0:29 ` Neil Brown
2010-08-07 2:42 ` Steve French
2010-08-07 2:54 ` Steve French
2010-08-07 3:32 ` Neil Brown
2010-08-07 10:34 ` Jeff Layton
2010-08-07 11:04 ` Neil Brown
2010-08-08 12:12 ` Jeremy Allison
2010-08-08 12:53 ` Jeff Layton
2010-08-08 13:05 ` Jeremy Allison
2010-08-13 12:54 ` J. Bruce Fields
2010-08-13 17:54 ` Jeremy Allison
2010-08-13 18:09 ` Steve French
2010-08-13 19:06 ` Jan Engelhardt
2010-08-13 19:19 ` Jeremy Allison
2010-08-16 18:04 ` J. Bruce Fields
2010-08-16 18:08 ` J. Bruce Fields
2010-08-16 19:07 ` Jeremy Allison
2010-08-08 23:07 ` Neil Brown
2010-07-22 15:46 ` Jan Engelhardt
2010-07-22 16:06 ` David Howells
2010-07-15 2:17 ` [PATCH 03/18] AFS: Use i_generation not i_version for the vnode uniquifier " David Howells
2010-07-15 2:17 ` [PATCH 04/18] xstat: AFS: Return extended attributes " David Howells
2010-07-15 2:17 ` [PATCH 05/18] xstat: eCryptFS: " David Howells
2010-07-15 2:17 ` [PATCH 06/18] xstat: Ext4: " David Howells
2010-07-15 2:17 ` [PATCH 07/18] xstat: NFS: " David Howells
2010-07-15 2:17 ` [PATCH 08/18] xstat: CIFS: " David Howells
2010-07-15 2:17 ` [PATCH 09/18] xstat: Make special system filesystems return FS_SPECIAL_FL " David Howells
2010-07-18 8:49 ` Christoph Hellwig
2010-07-19 14:09 ` David Howells
2010-07-27 13:41 ` David Howells
2010-07-15 2:17 ` [PATCH 10/18] xstat: Make network filesystems return FS_REMOTE_FL " David Howells
2010-07-15 2:17 ` [PATCH 11/18] xstat: Make automounter filesystems return FS_AUTOMOUNT_FL " David Howells
2010-07-15 2:17 ` [PATCH 12/18] xstat: Add a dentry op to handle automounting rather than abusing follow_link() " David Howells
2010-07-18 8:50 ` Christoph Hellwig
2010-07-19 14:10 ` David Howells
2010-07-15 2:17 ` [PATCH 13/18] xstat: AFS: Use d_automount() " David Howells
2010-07-15 2:17 ` [PATCH 14/18] xstat: NFS: " David Howells
2010-07-15 2:17 ` [PATCH 15/18] xstat: CIFS: " David Howells
2010-07-15 2:17 ` [PATCH 16/18] xstat: Remove the automount through follow_link() kludge code from pathwalk " David Howells
2010-07-15 2:17 ` [PATCH 17/18] xstat: Add an AT_NO_AUTOMOUNT flag to suppress terminal automount " David Howells
2010-07-15 2:17 ` [PATCH 18/18] xstat: Provide a mechanism to gather extra results for [f]xstat() " David Howells
2010-07-18 8:51 ` Christoph Hellwig
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