Re: How to disable all interrupts including scheduler

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In the 2.6 kernel, it is possible to turn off
all interrupt handling on the current processor with either of the following two func-
tions (which are defined in <asm/system.h>):

     void local_irq_save(unsigned long flags);
     void local_irq_disable(void);

A call to local_irq_save disables interrupt delivery on the current processor after sav-
ing the current interrupt state into flags. Note that flags is passed directly, not by
pointer. local_irq_disable shuts off local interrupt delivery without saving the state;
you should use this version only if you know that interrupts have not already been
disabled elsewhere.


On Mon, Nov 9, 2009 at 1:27 PM, J.H.Kim <frog1120@xxxxxxxxx> wrote:
Hi, everyone

I want to disable all terrupts including scheduler and
run only one program at some time.

I am goting to call device driver routine which includes
above function.

Whant command can I use in device driver routine?

Thanks in advance.

Best Regards,
J.Hwan Kim

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