On Oct 30 2007 13:01, Andrew Morton wrote:
>On Sun, 28 Oct 2007 19:08:31 -0400
>David Woodhouse <[email protected]> wrote:
>
>> This allows a flag to be set on loop devices so that when they are
>> closed for the last time, they'll self-destruct.
>>
>
>Why do we want to do this?
Off the top of my head, lazy unmounting comes to mind.
Think of this:
mount foobar /mnt -o loop;
cd /mnt;
umount /mnt;
Currently, this leaves /dev/loop0 assigned, either chewing up loop
places or needlessy exposing objects meant to be rather not
accessible. (Think cryptoloop devices -- and pam_mount.) BTW, such a
flag would also really be useful for dm(-crypt).
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