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    SubjectRe: PATCH - ext2fs privacy (i.e. secure deletion) patch
    On Wed, 04 Feb 2004 12:05:07 EST, Bill Davidsen said:

    > It would be useful to have this as a directory option, so that all files
    > in directory would be protected. I think wherever you do it you have to
    > prevent hard links, so that unlink really removes the data.

    This of course implies that 'chattr +s' (or whatever it was) has to fail
    if the link count isn't exactly one. Also makes for lots of uglyiness
    if it's a directory option - you then have to walk all the entries in the
    directory and check *their* link counts. Bad Juju doing it in the kernel
    if you have a directory with a million entries - and racy as hell if you
    do it in userspace.
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