mirror of
https://git.notmuchmail.org/git/notmuch
synced 2024-11-25 04:18:08 +01:00
e08f5f76e4
These 210 messages are in several long threads, which is good for testing our threading code, and may be useful just as a larger test corpus in the future.
174 lines
6.7 KiB
Text
174 lines
6.7 KiB
Text
From: Mingming Cao <mcao@us.ibm.com>
|
|
Subject: Re: [RFC][PATCH 06/10] cifs: define inode-level cache object and
|
|
register them
|
|
Date: Fri, 25 Jun 2010 17:52:24 -0700
|
|
Lines: 92
|
|
Message-ID: <OFB55E8EC7.E8DD23D5-ON8725774E.0004921E-8825774E.0004CC31@us.ibm.com>
|
|
References: <20100625125306.7f9b1966@tlielax.poochiereds.net> <4C24A606.5040001@suse.de>
|
|
<1277220214-3597-1-git-send-email-sjayaraman@suse.de> <9822.1277312573@redhat.com>
|
|
<22697.1277470549@redhat.com> <18628.1277502398@redhat.com> <20100625182651.36800d06@tlielax.poochiereds.net>
|
|
<AANLkTilOTrHLvLv4XWYZO6xCnYZgYT7gO2M-oKZ6VvqM@mail.gmail.com>
|
|
Mime-Version: 1.0
|
|
Content-Type: text/plain; charset=ISO-8859-1
|
|
Content-Transfer-Encoding: quoted-printable
|
|
Cc: linux-cifs@vger.kernel.org, Jeff Layton <jlayton@redhat.com>,
|
|
samba-technical@lists.samba.org, linux-kernel@vger.kernel.org,
|
|
David Howells <dhowells@redhat.com>, linux-fsdevel@vger.kernel.org,
|
|
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
|
|
To: Steve French <smfrench@gmail.com>
|
|
X-From: samba-technical-bounces@lists.samba.org Sat Jun 26 13:36:56 2010
|
|
Return-path: <samba-technical-bounces@lists.samba.org>
|
|
Envelope-to: gnsi-samba-technical@m.gmane.org
|
|
Received: from fn.samba.org ([216.83.154.106] helo=lists.samba.org)
|
|
by lo.gmane.org with esmtp (Exim 4.69)
|
|
(envelope-from <samba-technical-bounces@lists.samba.org>)
|
|
id 1OSTgu-00025d-6P
|
|
for gnsi-samba-technical@m.gmane.org; Sat, 26 Jun 2010 13:36:56 +0200
|
|
Received: from fn.samba.org (localhost [127.0.0.1])
|
|
by lists.samba.org (Postfix) with ESMTP id 1ED11AD2C4;
|
|
Sat, 26 Jun 2010 05:36:45 -0600 (MDT)
|
|
X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on fn.samba.org
|
|
X-Spam-Level:
|
|
X-Spam-Status: No, score=-6.6 required=3.8 tests=BAYES_00,HTML_MESSAGE,
|
|
RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham version=3.2.5
|
|
X-Original-To: samba-technical@lists.samba.org
|
|
Delivered-To: samba-technical@lists.samba.org
|
|
Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152])
|
|
by lists.samba.org (Postfix) with ESMTP id 30F90AD282
|
|
for <samba-technical@lists.samba.org>;
|
|
Fri, 25 Jun 2010 18:52:24 -0600 (MDT)
|
|
Received: from d03relay01.boulder.ibm.com (d03relay01.boulder.ibm.com
|
|
[9.17.195.226])
|
|
by e34.co.us.ibm.com (8.14.4/8.13.1) with ESMTP id o5Q0iN1h017083
|
|
for <samba-technical@lists.samba.org>; Fri, 25 Jun 2010 18:44:23 -0600
|
|
Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167])
|
|
by d03relay01.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id
|
|
o5Q0qQTN175324
|
|
for <samba-technical@lists.samba.org>; Fri, 25 Jun 2010 18:52:26 -0600
|
|
Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1])
|
|
by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP
|
|
id o5Q0qPCF006767
|
|
for <samba-technical@lists.samba.org>; Fri, 25 Jun 2010 18:52:26 -0600
|
|
Received: from d03nm128.boulder.ibm.com (d03nm128.boulder.ibm.com
|
|
[9.17.195.32])
|
|
by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id
|
|
o5Q0qPrh006760; Fri, 25 Jun 2010 18:52:25 -0600
|
|
In-Reply-To: <AANLkTilOTrHLvLv4XWYZO6xCnYZgYT7gO2M-oKZ6VvqM@mail.gmail.com>
|
|
X-KeepSent: B55E8EC7:E8DD23D5-8725774E:0004921E;
|
|
type=4; name=$KeepSent
|
|
X-Mailer: Lotus Notes Build V852_M2_03302010 March 30, 2010
|
|
X-MIMETrack: Serialize by Router on D03NM128/03/M/IBM(Release 8.0.1|February
|
|
07, 2008) at 06/25/2010 18:52:25
|
|
X-Mailman-Approved-At: Sat, 26 Jun 2010 05:36:42 -0600
|
|
X-Content-Filtered-By: Mailman/MimeDel 2.1.12
|
|
X-BeenThere: samba-technical@lists.samba.org
|
|
X-Mailman-Version: 2.1.12
|
|
Precedence: list
|
|
List-Id: "Discussions on Samba internals. For general questions please
|
|
subscribe to the list samba@samba.org"
|
|
<samba-technical.lists.samba.org>
|
|
List-Unsubscribe: <https://lists.samba.org/mailman/options/samba-technical>,
|
|
<mailto:samba-technical-request@lists.samba.org?subject=unsubscribe>
|
|
List-Archive: <http://lists.samba.org/pipermail/samba-technical>
|
|
List-Post: <mailto:samba-technical@lists.samba.org>
|
|
List-Help: <mailto:samba-technical-request@lists.samba.org?subject=help>
|
|
List-Subscribe: <https://lists.samba.org/mailman/listinfo/samba-technical>,
|
|
<mailto:samba-technical-request@lists.samba.org?subject=subscribe>
|
|
Sender: samba-technical-bounces@lists.samba.org
|
|
Errors-To: samba-technical-bounces@lists.samba.org
|
|
Archived-At: <http://permalink.gmane.org/gmane.linux.kernel/1003208>
|
|
|
|
|
|
|
|
Steve French <smfrench@gmail.com> wrote on 06/25/2010 04:05:30 PM:
|
|
|
|
> Steve French <smfrench@gmail.com>
|
|
> 06/25/2010 04:05 PM
|
|
>
|
|
> To
|
|
>
|
|
> Jeff Layton <jlayton@samba.org>, "Aneesh Kumar K.V"
|
|
> <aneesh.kumar@linux.vnet.ibm.com>, Mingming Cao/Beaverton/IBM@IBMUS
|
|
>
|
|
> cc
|
|
>
|
|
> David Howells <dhowells@redhat.com>, Suresh Jayaraman
|
|
> <sjayaraman@suse.de>, linux-cifs@vger.kernel.org, linux-
|
|
> fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, samba-
|
|
> technical@lists.samba.org, Jeff Layton <jlayton@redhat.com>
|
|
>
|
|
> Subject
|
|
>
|
|
> Re: [RFC][PATCH 06/10] cifs: define inode-level cache object and
|
|
> register them
|
|
>
|
|
> On Fri, Jun 25, 2010 at 5:26 PM, Jeff Layton <jlayton@samba.org> wrot=
|
|
e:
|
|
> >
|
|
> > On Fri, 25 Jun 2010 22:46:38 +0100
|
|
> > David Howells <dhowells@redhat.com> wrote:
|
|
> >
|
|
> > > Jeff Layton <jlayton@samba.org> wrote:
|
|
> > >
|
|
> > > > Looks like it mostly uses the ctime. IMO, the mtime would be a
|
|
better
|
|
> > > > choice since it changes less frequently, but I don't guess that=
|
|
it
|
|
> > > > matters very much.
|
|
> > >
|
|
> > > I'd've thought mtime changes more frequently since that's
|
|
> altered when data is
|
|
> > > written. =A0ctime is changed when attributes are changed.
|
|
> > >
|
|
> >
|
|
> > IIUC, updating mtime for a write is also an attribute change, and t=
|
|
hat
|
|
> > affects ctime. According to the stat(2) manpage:
|
|
> >
|
|
> > =A0 =A0 =A0 The field st_ctime is changed by writing or by setting
|
|
> =A0inode =A0informa-
|
|
> > =A0 =A0 =A0 tion (i.e., owner, group, link count, mode, etc.).
|
|
> >
|
|
> > > Note that Ext4 appears to have a file creation time field in its
|
|
inode
|
|
> > > (struct ext4_inode::i_crtime[_extra]). =A0Can Samba be made to us=
|
|
e
|
|
that?
|
|
> > >
|
|
> >
|
|
> > Is it exposed to userspace in any (standard) way? It would be handy=
|
|
to
|
|
> > have that. While we're wishing...it might also be nice to have a
|
|
> > standard way to get at the i_generation from userspace too.
|
|
> >
|
|
>
|
|
> Yes - I have talked with MingMing and Aneesh about those (NFS may
|
|
> someday be able to use those too).=A0 An obstacle in the past had bee=
|
|
n
|
|
> that samba server stores its own fake creation time in an ndr encoded=
|
|
|
|
> xattr which complicates things.
|
|
>
|
|
> MingMing/Annesh -
|
|
> Xattr or other way to get at birth time?
|
|
>
|
|
>
|
|
|
|
Not yet,
|
|
The ext4 file creation time only accesable from the kernel at the mome=
|
|
nt.
|
|
There were discussion
|
|
to make this information avaliable via xattr before, but was rejected,
|
|
since most people
|
|
agree that making this info avalibele via stat() is more standard. Howe=
|
|
ver
|
|
modifying stat() would imply
|
|
big interface change. thus no action has been taken yet.
|
|
|
|
> --
|
|
> Thanks,
|
|
>
|
|
> Steve=
|
|
|
|
|
|
|