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From: Stefan Behrens <sbehrens@giantdisaster.de>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org,
	xfs@oss.sgi.com
Subject: Re: [PATCH 4/4] xfstests: Add support for btrfs in 079
Date: Fri, 29 Jul 2011 16:30:12 +0200	[thread overview]
Message-ID: <4E32C3F4.8040505@giantdisaster.de> (raw)
In-Reply-To: <20110729123028.GA4764@infradead.org>

On 7/29/2011 2:30 PM, Christoph Hellwig wrote:
> On Fri, Jul 29, 2011 at 02:24:30PM +0200, Stefan Behrens wrote:

>> The difference between the filesystems is whether the append-only
>> flag from the directory is inherited to the newly create file inside
>> that directory. XFS does not inherit that append-only flag, ext2,
>> ext3, ext4 and btrfs do inherit it.

> Having different behaviour for different filesystems is a bad thing,
> and given that XFS is the lonely one out there I think we should
> remove the inheritance.  I'll preparate a patch for it.

In order to make it consistent, it would be needed to _add_ the
inheritance to XFS, not to remove it from XFS. Or to remove it from
ext2, ext3, ext4 and btrfs.

A different thread is whether it makes sense to inherit this flag
from directories to files. I would prefer to not inherit the
append-only flag from a directory to files created in that
directory, because the use case for setting the append-only flag
on directories is different to the use case for having the flag set
on files. I cannot imagine use cases where the inheritance of this
flag from the directory to the file is useful.
But I cannot find real-world use cases for setting this flag on
directories anyway, to all imaginable needs in this area the
solution is the sticky bit on the directory or ACLs.

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      reply	other threads:[~2011-07-29 14:30 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-28  8:27 [PATCH 0/4] xfstests: Add support for btrfs in a couple of xfstests Stefan Behrens
2011-07-28  8:27 ` [PATCH 1/4] xfstests: Add support for btrfs in 062 Stefan Behrens
2011-07-28  8:45   ` Christoph Hellwig
2011-07-28 17:51     ` Stefan Behrens
2011-07-28  8:27 ` [PATCH 2/4] xfstests: Add support for btrfs in 083, 117, 120 and 192 Stefan Behrens
2011-07-28  8:46   ` Christoph Hellwig
2011-07-28  8:28 ` [PATCH 3/4] xfstests: Add support for btrfs in 015 Stefan Behrens
2011-07-28  8:47   ` Christoph Hellwig
2011-07-28 17:54     ` Stefan Behrens
2011-07-28 20:05       ` Christoph Hellwig
2011-07-28  8:28 ` [PATCH 4/4] xfstests: Add support for btrfs in 079 Stefan Behrens
2011-07-28  8:51   ` Christoph Hellwig
2011-07-29 12:24     ` Stefan Behrens
2011-07-29 12:30       ` Christoph Hellwig
2011-07-29 14:30         ` Stefan Behrens [this message]

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