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    SubjectRe: [cpuops cmpxchg V2 3/5] irq_work: Use per cpu atomics instead of regular atomics
    On 12/14/2010 05:28 PM, Christoph Lameter wrote:
    > The irq work queue is a per cpu object and it is sufficient for
    > synchronization if per cpu atomics are used. Doing so simplifies
    > the code and reduces the overhead of the code.
    >
    > Before:
    >
    > christoph@linux-2.6$ size kernel/irq_work.o
    > text data bss dec hex filename
    > 451 8 1 460 1cc kernel/irq_work.o
    >
    > After:
    >
    > christoph@linux-2.6$ size kernel/irq_work.o
    > text data bss dec hex filename
    > 438 8 1 447 1bf kernel/irq_work.o
    >
    > Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>

    Peter, can you please ack this one?

    Thanks.

    --
    tejun


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