Hello, On 07/27/2010 12:20 AM, Luck, Tony wrote: > I've been trying to avoid this for a long time ... but per-cpu space > has slowly been growing. Tejun has some patches in linux-next that > pre-reserve some space (PERCPU_DYNAMIC_EARLY_SIZE) for use before > slab comes online ... and this pushes ia64 above the 64K current > limit on static percpu space. Yeah, more stuff are moving to percpu area. I'm thinking about increasing PERCPU_DYNAMIC_RESERVE too as it's overflowing in most common cases now, but it's not really a bad thing tho. Many of those used to use NR_CPUS allocations instead so overall I don't think we're wasting memory. > I could probably squeeze it back under (we are only over by 512 bytes). > But I don't think that I'll be able to squeeze it down enough to build > a comfortable breathing space - and I don't want to keep nibbling off > a dozen bytes here and there every time some generic code bumps us > back over the limit. > > Next available supported page size is 256K ... so we have to quadruple > the available space - a bigger jump than I'd like. But perhaps it will > be enough to last a few more years before it needs to be increased again. > > Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> I suppose this would go through ia64 tree? Thank you. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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