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    From
    SubjectRe: getting Linux into business..
    Date
    In linux.dev.kernel, article <9608210930.ZM14969@aib.com>,
    "Eric Youngdale" <eric@aib.com> writes:
    >
    > I am wondering whether umount should be made more robust so that
    > it essentially forks prior to each unmount attempt. When all the children
    > have died we know that everything is unmounted, and we can proceed. If
    > one of the umounts hangs, then at least all of the remaining partitions
    > are cleanly unmounted.

    Something like that would probably be a good idea.

    int try = 0;
    do {
    /* try to unmount, return success or ENOENT or whatever */
    sleep(++try);
    } while(1);

    > If some NFS partition cannot be unmounted, can we still force the
    > root partition back to R/O status so that it is also marked clean?
    >
    Yes.

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