Re: [Xen-devel] [PATCH] xen/spinlock: Use mnemonics for recursive spinlock sentinel values

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 09.01.16 at 15:33, <andrew.cooper3@xxxxxxxxxx> wrote:
> --- a/xen/common/spinlock.c
> +++ b/xen/common/spinlock.c
> @@ -246,7 +246,7 @@ int _spin_trylock_recursive(spinlock_t *lock)
>      unsigned int cpu = smp_processor_id();
>  
>      /* Don't allow overflow of recurse_cpu field. */
> -    BUILD_BUG_ON(NR_CPUS > 0xfffu);
> +    BUILD_BUG_ON(NR_CPUS >= SPINLOCK_NO_CPU);

">" (see also the reply to Doug's patch 1/2)

Jan


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