linux-kernel - Re: A Plumber’s Wish List for Linux

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Message-ID: <CAE2SPAY=OzVKtgeO=QtT_73EKuJHBWMFkMLA==uG6UUk-pekvQ@mail.gmail.com>
Date:	Sat, 8 Oct 2011 11:53:59 +0200
From:	Bastien ROUCARIES <roucaries.bastien@...il.com>
To:	Kay Sievers <kay.sievers@...y.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	lennart@...ttering.net, harald@...hat.com, david@...ar.dk,
	greg@...ah.com
Subject: Re: A Plumber’s Wish List for Linux

On Fri, Oct 7, 2011 at 2:46 PM, Kay Sievers <kay.sievers@...y.org> wrote:
> []sorry, need to resend. I tried to reply with the cell phone but it bounces]
>
> On Fri, Oct 7, 2011 at 12:38, Alan Cox <alan@...rguk.ukuu.org.uk> wrote:
>> On Fri, 7 Oct 2011 12:28:46 +0200 Kay Sievers <kay.sievers@...y.org> wrote:
>>
>>> What do you mean would be ugly?
>>
>> I have an ext4fs. It supports every possible file name allowed by POSIX
>> and SuS. What name are you going to use for your 'hidden directory' that
>> won't clash with a real file ?
>
> Ah, no. The label on FAT (similar on NTFS) are 'magic entries' in the
> root dir list, not a real file in the root dir.

Why not using a special xattr namespace ?

Bastien
> We need kernel support for changing a mounted fs, because, unlike
> ext4, the blocks containing the strings are inside the fs, which the
> kernel might change any time.
>
> Kay
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