| Subject | Re: [PATCH RFC 10/12] x86/pvticketlock: keep count of blocked cpus | From | Peter Zijlstra <> | Date | Tue, 03 Aug 2010 10:32:40 +0200 |
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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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