Re: [patch 05/44] generic {,test_and_}{set,clear,change}_bit()

Martin Waitz
2006-02-03T09:55:41Z

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hoi :)

On Wed, Feb 01, 2006 at 06:02:29PM +0900, Akinobu Mita wrote:
> +static __inline__ void set_bit(int nr, volatile unsigned long *addr)
> +{
> + unsigned long mask = BITOP_MASK(nr);
> + unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
> + unsigned long flags;
> +
> + _atomic_spin_lock_irqsave(p, flags);
> + *p |= mask;
> + _atomic_spin_unlock_irqrestore(p, flags);
> +}

You could even use your new generic non-atomic bitops to implement these

--
Martin Waitz

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