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    SubjectRe: [patch] generic-pidhash-2.5.36-D4, BK-curr
    On Fri, Sep 20, 2002 at 03:43:47PM +0400, Oleg Drokin wrote:
    > On Fri, Sep 20, 2002 at 11:40:16AM +0200, Ingo Molnar wrote:
    > > we need a cmpxchg() function in the generic library, using a spinlock.
    > But this is not safe for arches that provides SMP but does not provide
    > cmpxchg in hadware, right?
    > I mean it is only safe to use such spinlock-based function if
    > all other places read and write this value via special functions that are
    > also taking this spinlock.


    > Do you think we can count on this?

    I don't think so.

    Russell King ( The developer of ARM Linux

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