Messages in this thread | | | From | Andi Kleen <> | Subject | Re: More thoughts on getting rid of ZONE_DMA | Date | Sat, 23 Sep 2006 02:39:57 +0200 |
| |
On Saturday 23 September 2006 02:23, Christoph Lameter wrote: > On Sat, 23 Sep 2006, Andi Kleen wrote: > > > The problem is that if someone has a workload with lots of pinned pages > > (e.g. lots of mlock) then the first 16MB might fill up completely and there > > is no chance at all to free it because it's pinned > > Ok. That may be a problem for i386. After the removal of the GFP_DMA > and ZONE_DMA stuff it is then be possible to redefine ZONE_DMA (or > whatever we may call it ZONE_RESERVE?) to an arbitrary size a the > beginning of memory. Then alloc_pages_range() can dynamically decide to > tap that pool if necessary.
That's should work yes. Just we need the pool.
-Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |