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    SubjectRe: [RFC 2/2] initramfs with digital signature protection
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    The cleanup is not a umount, it is actually a tree walk unlinking the contents.

    "Kasatkin, Dmitry" <dmitry.kasatkin@intel.com> wrote:

    >On Wed, Feb 6, 2013 at 7:04 AM, H. Peter Anvin <hpa@zytor.com> wrote:
    >> On 02/05/2013 02:09 PM, Kasatkin, Dmitry wrote:
    >>>
    >>>
    >>> It should not be like that. Actually when pre-init exits, cleanup
    >code
    >>> umount tmpfs, which in turn cleanups the RAM.
    >>>
    >>
    >> It doesn't quite... the rootfs is permanent. This is also only one
    >usage
    >> mode: there are quite a few Linux systems running directly out of
    >initramfs.
    >>
    >
    >rootfs is not permanent when it is ramfs. It is cleaned up on switch
    >root.
    >It is easy to find out that it is empty by mounting : mount -t ramfs
    >rootfs /mnt/
    >
    >In the case of running from normal storage, of course, there is
    >ridicules remove the content.
    >
    >- Dmitry
    >
    >
    >> -hpa
    >>
    >>
    >> --
    >> H. Peter Anvin, Intel Open Source Technology Center
    >> I work for Intel. I don't speak on their behalf.
    >>

    --
    Sent from my mobile phone. Please excuse brevity and lack of formatting.


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