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    SubjectRe: [PATCH] udev enhancements to use kernel event queue

    On Thu, 19 Jun 2003, Steven Dake wrote:
    >
    > A serialization methodology can be built on /sbin/hotplug, but it has
    > all of the problems that Linus previously talked about for a kernel
    > event queue. The difference is that the problem is moved to userland.

    Having event ordering is a trivial matter, and I'm not against adding a
    sequence number to /sbin/hotplug as part of the environment, for example.

    What I worry about is the situation where one big deamon handles
    everything, which makes it impossible to "hook in" to the thing without
    understanding the one big thing.

    The thing that makes /sbin/hotplug so wonderful is that it's stateless,
    and if you want to hook into it, it's absolutely _trivial_. Look at the
    default script there in redhat-9 for example, and it's obvious how to hook
    up to certain events etc.

    And why do people care about serialization anyway? Really? The whole
    notion is ludicrous. /sbin/hotplug _shouldn't_ be serialized.
    Serialization is bad. You should look at whatever problems you have with
    it now, and ask yourself whether maybe it should be done some other way
    entirely.

    Linus

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