secure deletion

[Warner Losh]

In message <Pine.BSF.4.05.9905221042250.25097-100000 at ws-ilmar.ints.ru> "Ilmar S. Habibulin" writes:
: On 21 May 1999, Dag-Erling Smorgrav wrote:
: 
: > Because a mount option can be changed at runtime, whereas a kernel
: > option cannot. A mount option would allow you to enable the security
: > feature on file systems which need it but not on file systems which do
: > not need it, whereas a kernel option would enable it unconditionally
: > on all file systems.
: And what about it? I just don't understand why this option must be
: fs-specific. If file have no flag, it would be deleted in ordinary way. 

I think that what people are saying, if I understand them correctly,
is that it would be desirable if an entire file system could be told
to do the shredding delete.  This would make it useful for a
filesystem mounted on /tmp, for example.

Warner
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