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    SubjectRe: [RFC PATCH 02/33] Add sync bitops
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    On Tue, 2006-07-18 at 00:00 -0700, Chris Wright wrote:
    > plain text document attachment (synch-ops)
    > Add "always lock'd" implementations of set_bit, clear_bit and
    > change_bit and the corresponding test_and_ functions. Also add
    > "always lock'd" implementation of cmpxchg. These give guaranteed
    > strong synchronisation and are required for non-SMP kernels running on
    > an SMP hypervisor.

    Hi,

    this sounds really like the wrong approach; you know you're compiling
    for xen, so why not just make set_bit() and the others use the lock'd
    instructions at compile time?

    Greetings,
    Arjan van de Ven

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