On Tue, May 20, 2008 at 02:31:29AM -0700, Andrew Morton wrote: > Why does ARCH_KMALLOC_MINALIGN even exist? What is its mandate? Sigh. > > It's not really related to your patch (although your patch compounds > the problem a little). But we should sit down and work out what we > actually want to do here. Something like: > > In each architecture's arch/foo/Kconfig, define > > CONFIG_ARCH_DMA_ALIGN > > and > > CONFIG_ARCH_64BIT_POINTER_ALIGN > > and then use them. Note that these have nothing to do with each other, > as far as I can tell. > > Which leaves the question: "what should slab use"? Maybe > CONFIG_ARCH_DMA_ALIGN? But that depends what ARCH_KMALLOC_MINALIGN is > supposed to exist for. > > ick. > The only platforms that set ARCH_KMALLOC_MINALIGN appear to do so for DMA alignment reasons, so your Kconfig option there seems reasonable. The ARCH_SLAB_MINALIGN you can blame me for: http://marc.info/?l=linux-kernel&m=110227138116749&w=2 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
