RE: Calculating kernel logical address ..

[Manfred Spraul]

>>As long as you can be sure they won't spontaneously vanish on you.
> 
>>--
>>Daniel
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> 
> down(&current->mm->mmap_sem) would help.
> 

Wrong. Acquiring the mmap semaphore does NOT prevent the swapper from 
swapping out pages.

Only the page_table_lock prevents the swapper from touching a task.

--
	Manfred