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 <frog1...@gmail.com> 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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