linux-kernel - Re: [PATCH 1/3] ext2/3/4: enable "undeletable" file attribute.

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Date:	Wed, 22 Nov 2006 11:27:40 +0100 (MET)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	James Hunt <james@...eshunt.org.uk>
cc:	linux-kernel@...r.kernel.org, akpm@...l.org, sct@...hat.com
Subject: Re: [PATCH 1/3] ext2/3/4: enable "undeletable" file attribute.

>Currently, although you can mark a file as undeletable with 'chattr'...
>
>  > touch /tmp/wibble
>  > ls -l /tmp/wibble
>  -rw-rw-r-- 1 james james 0 Nov 16 20:00 /tmp/wibble
>  > chattr +u /tmp/wibble      # mark file as undeletable
>  > lsattr /tmp/wibble
>  -u----------- /tmp/wibble
>
>... it's not honoured by the kernel:
>
>  > rm /tmp/wibble             # yikes! this should fail!!

Currently, the immutable flag controls the behavior to forbid deletion.

	-`J'
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