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SubjectRe: Today Linus redesigns the networking driver interface (was Re: tulip driver in ...)
On Sun, 20 Sep 1998, Alan Cox wrote:
> > The whole notion of "interrupt priority" is just completely broken. There
> > is no such thing.
> On a PC.

> Almost every cli in the kernel is in fact really
> block_interrupt(dev->irq)
> something
> unblock_interrupt(dev->irq)
> Where dev->irq is the device irq.

#ifdef __i386__
#define block_interrupt(irq) save_flags(flags); cli();
#define unblock_interrupt(irq) restore_flags();
#define block_interrupt(irq) sane_block_interrupt(irq);
#define unblock_interrupt(irq) sane_unblock_interrupt(irq);



Geert Uytterhoeven
Wavelets, Linux/{m68k~Amiga,PPC~CHRP}
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium

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