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    SubjectRe: v2.6.23-rc4-rt1 / new project URL
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    On Fri, 2007-08-31 at 22:59 +0200, Thomas Gleixner wrote:
    > We're pleased to announce the release of the v2.6.23-rc4-rt1 kernel,
    > which can be downloaded from a new place:
    >
    > http://www.kernel.org/pub/linux/kernel/projects/rt/
    >
    > The move to kernel.org is experimental for now, we'll keep it if it
    > works out fine.
    >
    > Changes since 2.6.23-rc2-rt2:
    >
    > - update to -rc4
    > - update to 2.6.23-rc4-hrt1
    >
    > - UP compile fixes back merged (Kevin Hilman / Steven Rostedt)
    > - various latency tracer fixes (Steven Rostedt)

    I'm not sure which latency tracing fixes these are, but Steven's
    get_monotonic_cycles() changes are racy .. It might be a little
    premature to include them .. It at least fouls latency tracing on my
    test machine.

    > - simple_irq change (Kevin Hilman): needs more thought
    > - RCU updates (Paul McKenney): needs proper integration
    > - latency tracer changes (Daniel Walker): needs review
    > - PICK_OP changes (Daniel Walker): needs review

    The PICK_OP changes got reviewed by Ingo , as of,

    http://marc.info/?l=linux-rt-users&m=118638506125380&w=2

    They do need one small fix tho .. Below ..

    Signed-off-by: Daniel Walker <dwalker@mvista.com>

    Index: linux-2.6.22/include/linux/spinlock.h
    ===================================================================
    --- linux-2.6.22.orig/include/linux/spinlock.h 2007-09-01 00:08:04.000000000 +0000
    +++ linux-2.6.22/include/linux/spinlock.h 2007-09-01 00:07:48.000000000 +0000
    @@ -501,7 +501,7 @@ do { \

    #define spin_trylock_irq(lock) \
    __cond_lock(lock, PICK_SPIN_OP_RET(__spin_trylock_irq, \
    - __spin_trylock_irq, lock))
    + _spin_trylock_irq, lock))

    #define spin_trylock_irqsave(lock, flags) \
    __cond_lock(lock, PICK_SPIN_OP_RET(__spin_trylock_irqsave, \

    -
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