Re: Active_mm

[Dharmender Rai <dharmendra_rai@yahoo.com>]

Hi,
  It is used to schedule a kernel thread that has "no
real address space" or mm_struct.  So, if we are
scheduling-in the kernel thread (which has no p->mm)
then its next->active_mm will be set to the 
prev->active_mm of the task that was scheduled-out,
which will be the same as prev->mm if prev->mm !=
NULL.

Regards 

Dharmender Rai

 --- R!SC <risc54@inwind.it> wrote: > hi *,
> 
> what is active_mm field in task_struct?
> it's often used in  schedule alghoritm.
> 
> thanks
> R!SC
> 
> 
> --


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