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    SubjectRe: [PATCH] FRV: Fix the section attribute on UP DECLARE_PER_CPU()

    * David Howells <dhowells@redhat.com> wrote:

    > Any idea what this:
    >
    > #define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)
    >
    > is intended for?

    it is a mixed type of percpu variable: which is per CPU but which
    can (and will) also be accessed from other CPUs. This way we
    basically cache-line align it and make sure nearby percpu variables
    dont get caught up in any cacheline bounces. It was introduced a
    couple of years ago.

    Ingo


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