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    SubjectRe: [PATCH 00/33] dyn_array and nr_irqs support v4
    On Wed, Aug 6, 2008 at 10:37 AM, Eric W. Biederman
    <> wrote:
    > Yinghai Lu <> writes:
    >> Please check dyn_array support for x86
    >> v3: split changing to nr_irqs to small patches
    >> fix checkpatch error
    >> reorder the patch sequence to make dyn_array support go at first
    >> so could use that with arrays other than NR_IRQS
    >> v4: add CONFIG_HAVE_SPARSE_IRQ with list to use condensed irq_desc array
    >> so could use 32 init, and init more if needed.
    >> now: x86 32bit: have CONFIG_HAVE_DYN_ARRAY
    >> left:
    >> a. hook irq_2_iommu to irq_desc ?
    >> b. expand /proc/interrupts to process > nr_irqs
    >> c. expand to use irq > nr_irqs for msi
    >> notes: may break some arch compling...
    > It looks like you might possibly be iterating to something usable.
    > Breaking architectures is not acceptable however.
    > My suggestion for a non-breaking path:
    > - Kill NR_IRQS in then generic code.
    > With Alan's serial patch and my kstat patch it looks like we have
    > the worst of that.

    will use Alan's first.
    already reused your patch about kstat. and move kstat_irqs to irq_desc.

    > - Introduce get_irq_desc and the functions or function modifications
    > that pass a struct irq_desc * into the genirq code.
    > Although I absolutely hate the name get_irq_desc as it implies we are
    > reference counting something and need a corresponding put_irq_desc.
    > Since the lifetime rules don't require that. Please just call the
    > function irq_desc().

    will check that.

    > - Update arch/x86 to do everything interesting with irq_desc pointers.
    > - Start dynamically allocating irq_desc and irq_cfg.

    already done in last 10 patches.


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