Messages in this thread | | | Date | Wed, 23 Oct 2002 08:02:42 -0400 (EDT) | From | "Richard B. Johnson" <> | Subject | Re: I386 cli |
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On Tue, 22 Oct 2002, David Grothe wrote:
> In 2.5.41every architecture except Intel 386 has a "#define cli > <something>" in its asm-arch/system.h file. Is there supposed to be such a > define in asm-i386/system.h? If not, where does the "official" definition > of cli() live for Intel? Or what is the include file that one needs to > pick it up? I can't find it. > Thanks, > Dave
Grep for 'spin_lock'. You can't just use `cli` alone. It won't protect the critical section. You probably need:
spin_lock_irqsave(&lock, flags); //.... critical section spin_unlock_irqrestore(&lock, flags);
Cheers, Dick Johnson Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips). Bush : The Fourth Reich of America
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