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    SubjectRe: [PATCH] x86-32: Allocate irq stacks seperate from percpu area

    * Linus Torvalds <> wrote:

    > On Tue, Oct 26, 2010 at 10:43 PM, Brian Gerst <> wrote:
    > > The percpu allocator cannot handle alignments larger than one page.
    > > Allocate the irq stacks seperately, and only keep the pointers as
    > > percpu data.
    > Ok, so I definitely want this (although it sounds like it would be good to do the
    > allocation numa-aware - possibly a separate issue).
    > However, I also want to remove all the crap that got added for the multi-page
    > percpu support. It was ugly, and apparently never really worked. All the
    > PER_CPU_MULTIPAGE_ALIGNED crud just needs to go away.
    > Ingo, can you take care of this all, or should I just take the patch and remove
    > the multipage stuff manually?

    Sure, i'm queuing up Brian's patch (initially wanted to wait for the NUMA-aware
    version) and will remove all the multipage pcpu bits - will send you a pull request
    later today, after a bit of testing.



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