Re: Google's mm problem - not reproduced on 2.4.13

[Linus Torvalds]

In article <[e-mail]>,
Stephan von Krawczynski  <[e-mail]> wrote:
>
>> -	/* Don't swap out areas which are locked down */
>> -	if (vma->vm_flags & (VM_LOCKED|VM_RESERVED))
>> +	/* Don't swap out areas which are reserved */
>> +	if (vma->vm_flags & VM_RESERVED)
>>  		return count;
>
>Although I agree what you said about differences of old and new VM, I believe
>the above was not really what Ben intended to do by mlocking. I mean, you swap
>them out right now, or not?

Not. See where I added the VM_LOCKED test - deep down in the page-out
code it will decide that a VM_LOCKED page is always accessed, and will
move it to the active list instead of swapping it out.

		Linus