On Mon, Aug 13, 2007 at 03:09:55PM -0700, Christoph Lameter wrote: > > > > There are still other architectures that use it. Biggest offender > > > > is s390. I'll leave them to their respective maintainers. > > > > > > IA64 also uses ZONE_DMA to support 32bit controllers. > > > > ZONE_DMA32 I thought? That one is not changed. > > x86_64 is the only platforms that uses ZONE_DMA32. Ia64 and other 64 bit > platforms use ZONE_DMA for <4GB allocs.
Yes, but ZONE_DMA32 == ZONE_DMA. Also when the slab users of GFP_DMA are all gone ia64 won't need the slab support anymore. So either you change your ifdef in slub or switch to ZONE_DMA32 for IA64. The trouble is that this cannot be done globally, at least not until s390 and a few other architures using GFP_DMA with slab are all converted. > I think s/ZONE_DMA32/ZONE_DMA would restore the one DMA zone thing which > is good. We could drop all ZONE_DMA32 stuff that is only needed by a > single arch. But it's not quite the same: GFP_DMA32 has no explicit slab support. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
