Re: [RFC 0/3] Recursive reclaim (on __PF_MEMALLOC)

Andi Kleen
2007-08-15T13:21:56Z

Peter Zijlstra <a.p.zijlstra@chello.nl> writes:
>
> Christoph's suggestion to set min_free_kbytes to 20% is ridiculous - nor
> does it solve all deadlocks :-(

A minimum enforced reclaimable non dirty threshold wouldn't be
that ridiculous though. So the memory could be used, just not
for dirty data.

His patchkit essentially turns the GFP_ATOMIC requirements
from free to easily reclaimable. I see that as an general improvement.

I remember sct talked about this many years ago and it's still
a good idea.

-Andi