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    SubjectRe: [PATCH RFC 10/12] x86/pvticketlock: keep count of blocked cpus
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    On Fri, 2010-07-16 at 18:03 -0700, Jeremy Fitzhardinge wrote:
    > @@ -26,6 +26,9 @@ typedef struct arch_spinlock {
    > __ticket_t head, tail;
    > } tickets;
    > };
    > +#ifdef CONFIG_PARAVIRT_SPINLOCKS
    > + __ticket_t waiting;
    > +#endif
    > } arch_spinlock_t;

    This bloats spinlock_t from u32 to u64 on most distro configs I think,
    since they'll have NR_CPUS=4096 or something large like that and
    probably also want to have this PARAVIRT_SPINLOCKS thing.


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