From: Theodore Tso <tytso@mit.edu>
To: Jan Blunck <jblunck@suse.de>
Cc: Bharata B Rao <bharata@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Jan Blunck <j.blunck@tu-harburg.de>
Subject: Re: [RFC][PATCH 13/14] ext3 whiteout support
Date: Tue, 15 May 2007 10:28:31 -0400 [thread overview]
Message-ID: <20070515142830.GA5656@thunk.org> (raw)
In-Reply-To: <4de7f8a60705141335m7214e8e9k9f96244738dd2b4@mail.gmail.com>
On Mon, May 14, 2007 at 10:35:47PM +0200, Jan Blunck wrote:
>
> I don't know. I tried to contact him a few weeks ago but failed.
> Guess, maybe he isn't reading the @thunk.org email anymore which was
> reference in the e2fsprogs source I used.
I do pay more attention to mail sent to the @mit.edu address, but I
don't recall any reservation requests sent to my @thunk.org address
(nope, don't see it; maybe it got caught in my spam filters? When did
you send it, precisely?)
> Ted,
> from ext2_fs.h I learn that the value 0x0020 is left unused.
>
> #define EXT2_FEATURE_INCOMPAT_META_BG 0x0010
> #define EXT3_FEATURE_INCOMPAT_EXTENTS 0x0040
> #define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
>
> Is this intentionally?
I think 0x0020 was used at one point, but I can't remember what it was
used for. It's almost certainly not in wide use at this point, so
it's probably safe to use it; OTOH it's not like we're running out of
bits at this point.
- Ted
next prev parent reply other threads:[~2007-05-15 14:29 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-14 9:37 [RFC][PATCH 0/14] VFS based Union Mount(v1) Bharata B Rao
2007-05-14 9:38 ` [RFC][PATCH 1/14] Add union mount documentation Bharata B Rao
2007-05-14 9:39 ` [RFC][PATCH 2/14] Add a new mount flag (MNT_UNION) for union mount Bharata B Rao
2007-05-14 20:38 ` Jan Engelhardt
2007-05-15 8:16 ` Bharata B Rao
2007-05-15 12:06 ` Eric Van Hensbergen
2007-05-15 12:53 ` Jan Blunck
2007-05-14 9:39 ` [RFC][PATCH 3/14] Add the whiteout file type Bharata B Rao
2007-05-14 20:39 ` Jan Engelhardt
2007-05-15 6:00 ` Jan Blunck
2007-05-14 9:40 ` [RFC][PATCH 4/14] Add config options for union mount Bharata B Rao
2007-05-14 9:40 ` [RFC][PATCH 5/14] Introduce union stack Bharata B Rao
2007-05-14 20:23 ` Badari Pulavarty
2007-05-14 20:51 ` Jan Engelhardt
2007-05-19 10:18 ` Paul Dickson
2007-05-22 16:35 ` Jan Engelhardt
2007-05-23 13:25 ` Serge E. Hallyn
2007-05-14 20:48 ` Jan Engelhardt
2007-05-15 7:19 ` Jan Blunck
2007-05-14 22:40 ` Badari Pulavarty
2007-05-15 6:28 ` Bharata B Rao
2007-05-14 9:41 ` [RFC][PATCH 6/14] Union-mount dentry reference counting Bharata B Rao
2007-05-14 20:57 ` Jan Engelhardt
2007-05-14 9:41 ` [RFC][PATCH 7/14] Union-mount mounting Bharata B Rao
2007-05-15 7:29 ` Jan Engelhardt
2007-05-16 5:04 ` Bharata B Rao
2007-05-14 9:42 ` [RFC][PATCH 8/14] Union-mount lookup Bharata B Rao
2007-05-15 7:57 ` Jan Engelhardt
2007-05-16 5:08 ` Bharata B Rao
2007-05-16 19:28 ` Jan Engelhardt
2007-05-16 20:06 ` Serge E. Hallyn
2007-05-15 14:00 ` Trond Myklebust
2007-05-18 11:05 ` Bharata B Rao
2007-05-14 9:42 ` [RFC][PATCH 9/14] Union-mount readdir Bharata B Rao
2007-05-14 10:43 ` Carsten Otte
2007-05-14 11:15 ` Bharata B Rao
2007-05-14 9:43 ` [RFC][PATCH 10/14] In-kernel file copy between union mounted filesystems Bharata B Rao
2007-05-16 7:57 ` Jan Engelhardt
2007-05-18 11:10 ` Bharata B Rao
2007-05-18 13:47 ` Shaya Potter
2007-05-22 3:13 ` Bharata B Rao
2007-05-22 6:25 ` Jan Engelhardt
2007-05-22 8:38 ` Bharata B Rao
2007-05-22 12:35 ` Shaya Potter
2007-05-23 10:41 ` Bharata B Rao
2007-05-14 9:43 ` [RFC][PATCH 11/14] VFS whiteout handling Bharata B Rao
2007-05-16 8:06 ` Jan Engelhardt
2007-05-14 9:44 ` [RFC][PATCH 12/14] ext2 whiteout support Bharata B Rao
2007-05-16 8:07 ` Jan Engelhardt
2007-05-14 9:44 ` [RFC][PATCH 13/14] ext3 " Bharata B Rao
2007-05-14 20:16 ` Badari Pulavarty
2007-05-15 6:26 ` Bharata B Rao
2007-05-15 8:31 ` Jan Blunck
2007-05-14 20:17 ` Andreas Dilger
2007-05-14 20:35 ` Jan Blunck
2007-05-15 14:28 ` Theodore Tso [this message]
2007-05-14 9:45 ` [RFC][PATCH 14/14] tmpfs " Bharata B Rao
2007-05-14 16:13 ` Hugh Dickins
2007-05-14 19:20 ` Jan Blunck
2007-05-14 19:35 ` Hugh Dickins
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