Re: slab: setup allocators earlier in the boot sequence

Nick Piggin
2009-06-12T09:49:37Z

On Fri, Jun 12, 2009 at 07:44:25PM +1000, Benjamin Herrenschmidt wrote:
> On Fri, 2009-06-12 at 11:30 +0200, Nick Piggin wrote:
> > On Fri, Jun 12, 2009 at 07:24:20PM +1000, Benjamin Herrenschmidt wrote:
> > Yeah but it doesn't do it in the page allocator so it isn't
> > really useful as a general allocator flags tweak. ATM it only
> > helps this case of slab allocator hackery.
>
> I though I did it in page_alloc.c too but I'm happy to be told what I
> missed :-) The intend is certainly do have a general allocator flag
> tweak.

Oh, no I missed that sorry you did. I'd be a bit worried about
wanting it as a general allocator tweak. Even suspending IO
for suspend/resume... it would be better to try solving that
ordering by design and if not then perhaps add something
to mm/vmscan.c rather than modify gfp flags all the way
down.