[patch] latest 'guaranteed low latency' patch against 2.2.14

From: Ingo Molnar (mingo@chiara.csoma.elte.hu)
Date: Mon Feb 07 2000 - 07:12:02 EST


Here is the changelog of http://www.redhat.com/~mingo/lowprio-2.2.14-B1.

Changes since lowlatency-2.2.13-A1 (many thanks go to William Montgomery
who collected most of these bugfixes):

  - fixed trivial bug in #define udelay_resched(n) (William Montgomery)

  - fixed cpu idle race condition which allowed idle task to effectively
    have higher priority than SCHED_FIFO task. (Jamie Lokier and William
    Montgomery)

  - fixed race in setting need_resched during task switching (me)

  - fixed bottom half processing to always allow bottom half processing
    have priority over user processes. (Andrea Arcangeli and me)

  - fixed signal handling so that a need_resched after a do_signal is
    properly noticed. (me)

  - fixed ret_with_resched race which occurs when an intr sets
    need_resched _after_ it was checked. (Jamie Lokier)

  - ported to 2.2.14 (me)

Comments, reports welcome.

-- mingo

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