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    DateTue, 31 May 2005 11:14:37 +0200 (METDST)
    FromEsben Nielsen <>
    SubjectRe: RT patch acceptance
    On Tue, 31 May 2005, Nick Piggin wrote:
    
    > [...]
    > Whenever you or anyone else try to complicate the Linux kernel
    > with hard-RT stuff, [...]
    
    The more I look at Ingo's RT patch the more I see a cleanup. It is the old
    maybe-preemptive way which is a mess. There is so much the kernel
    developer have to think off wrt. locking. Too many kind of contexts,
    per cpu variables, miriads of locking types. When I started to look at it
    I thought: What a mess. 
    PREEMPT_RT basicly boils it down to: everything are threads, the only way
    to protect data is to use a mutex or use RCU. In short: Linux with
    PREEMPT_RT is much easier to understand and develop than with !PREEMPT_RT.
    
    Esben
    
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