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    SubjectRe: (fwd) Re: [RFC] mount flag "direct"
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    Le mer 04/09/2002 à 00:42, Peter T. Breuer a écrit :

    > Let's maintain a single bit in the superblock that says whether any
    > directory structure or whatever else we're worried about has been
    > altered (ecch, well, it has to be a timestamp, never mind ..). Before
    > every read we check this "bit" ondisk. If it's not set, we happily dive
    > for our data where we expect to find it. Otherwise we go through the
    > rigmarole you describe.

    Won't work. You would need an atomic read-and-write operation for that
    (read previous timestamp and write a special timestamp meaning
    "currently writing this block"), and you don't have that.

    Xav


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