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    SubjectRe: [RFC] Raceless module interface


    On Thu, 12 Sep 2002, Daniel Phillips wrote:

    > On Thursday 12 September 2002 05:13, Rusty Russell wrote:
    > > B) We do not handle the "half init problem" where a module fails to load, eg.
    > > a = register_xxx();
    > > b = register_yyy();
    > > if (!b) {
    > > unregister_xxx(a);
    > > return -EBARF;
    > > }
    > > Someone can start using "a", and we are in trouble when we remove
    > > the failed module.
    >
    > No we are not. The module remains in the 'stopped' state
    > throughout the entire initialization process, as it should and
    > does, in my model.

    Bzzzert. At the very least, for block devices we need to be able to open
    disks during module initialization.

    Al, fully expecting a stack of mind-boggling (and broken) kludges to be
    posted...

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