linux-kernel - Re: [RFC][PATCH 13/14] ext3 whiteout support

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Message-ID: <4de7f8a60705141335m7214e8e9k9f96244738dd2b4@mail.gmail.com>
Date:	Mon, 14 May 2007 22:35:47 +0200
From:	"Jan Blunck" <jblunck@...e.de>
To:	"Bharata B Rao" <bharata@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	"Jan Blunck" <j.blunck@...harburg.de>,
	"Theodore Ts'o" <tytso@....edu>
Subject: Re: [RFC][PATCH 13/14] ext3 whiteout support

On 5/14/07, Andreas Dilger <adilger@...sterfs.com> wrote:
> On May 14, 2007  15:14 +0530, Bharata B Rao wrote:
> >  #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV    0x0008 /* Journal device */
> >  #define EXT3_FEATURE_INCOMPAT_META_BG                0x0010
> > +#define EXT3_FEATURE_INCOMPAT_WHITEOUT               0x0020
>
> Is this flag reserved with Ted?  It isn't listed in the e2fsprogs repo.
>

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.

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?

Cheers,
Jan
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